CHEMICAL IDENTIFICATION
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RTECS NUMBER :
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YU2800000
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CHEMICAL NAME :
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Urea, 2-thio-
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CAS REGISTRY NUMBER :
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62-56-6
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LAST UPDATED :
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199710
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DATA ITEMS CITED :
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64
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MOLECULAR FORMULA :
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C-H4-N2-S
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MOLECULAR WEIGHT :
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76.13
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WISWESSER LINE NOTATION :
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ZYZUS
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
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TYPE OF TEST :
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Standard Draize test
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ROUTE OF EXPOSURE :
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Administration into the eye
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SPECIES OBSERVED :
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Rodent - rabbit
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Human - woman
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DOSE/DURATION :
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1660 mg/kg/5W
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TOXIC EFFECTS :
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Blood - hemorrhage Blood - granulocytopenia Blood - changes in cell count (unspecified)
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TYPE OF TEST :
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LDLo - Lowest published lethal dose
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ROUTE OF EXPOSURE :
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Unreported
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SPECIES OBSERVED :
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Human - man
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DOSE/DURATION :
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147 mg/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
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LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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125 mg/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
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LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
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Intraperitoneal
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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436 mg/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
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LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
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Intraperitoneal
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SPECIES OBSERVED :
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Rodent - mouse
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DOSE/DURATION :
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100 mg/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
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LDLo - Lowest published lethal dose
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rabbit
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DOSE/DURATION :
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6985 mg/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
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LDLo - Lowest published lethal dose
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ROUTE OF EXPOSURE :
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Subcutaneous
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SPECIES OBSERVED :
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Rodent - guinea pig
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DOSE/DURATION :
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4 gm/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
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LDLo - Lowest published lethal dose
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ROUTE OF EXPOSURE :
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Subcutaneous
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SPECIES OBSERVED :
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Amphibian - frog
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DOSE/DURATION :
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10 gm/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
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LDLo - Lowest published lethal dose
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Mammal - species unspecified
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DOSE/DURATION :
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1 gm/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
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LD50 - Lethal dose, 50 percent kill
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ROUTE OF EXPOSURE :
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Intraperitoneal
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SPECIES OBSERVED :
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Mammal - species unspecified
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DOSE/DURATION :
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3500 mg/kg
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TOXIC EFFECTS :
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Details of toxic effects not reported other than lethal dose value
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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2550 mg/kg/5W-C
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TOXIC EFFECTS :
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Endocrine - changes in thyroid weight
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TYPE OF TEST :
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TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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25 mg/m3/17W-I
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TOXIC EFFECTS :
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Behavioral - changes in motor activity (specific assay) Endocrine - evidence of thyroid hypofunction Related to Chronic Data - changes in prostate weight
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TYPE OF TEST :
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TCLo - Lowest published toxic concentration
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ROUTE OF EXPOSURE :
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Inhalation
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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47200 ug/m3/39W-I
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TOXIC EFFECTS :
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Lungs, Thorax, or Respiration - emphysema Lungs, Thorax, or Respiration - chronic pulmonary edema Endocrine - changes in thyroid weight
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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78 gm/kg/56W-C
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TOXIC EFFECTS :
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Tumorigenic - Carcinogenic by RTECS criteria Sense Organs and Special Senses (Eye) - tumors Sense Organs and Special Senses (Ear) - effect, not otherwise specified
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Multiple routes
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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151 gm/kg/52W-I
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TOXIC EFFECTS :
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Tumorigenic - Carcinogenic by RTECS criteria Sense Organs and Special Senses (Eye) - tumors Sense Organs and Special Senses (Ear) - effect, not otherwise specified
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TYPE OF TEST :
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TD - Toxic dose (other than lowest)
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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18 gm/kg/2Y-C
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TOXIC EFFECTS :
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Tumorigenic - neoplastic by RTECS criteria Liver - tumors
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TYPE OF TEST :
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TD - Toxic dose (other than lowest)
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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40 gm/kg/2Y-C
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TOXIC EFFECTS :
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Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - tumors
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TYPE OF TEST :
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TD - Toxic dose (other than lowest)
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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1950 mg/kg/2Y-C
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TOXIC EFFECTS :
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Tumorigenic - equivocal tumorigenic agent by RTECS criteria Liver - multiple effects Lungs, Thorax, or Respiration - other changes
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TYPE OF TEST :
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TD - Toxic dose (other than lowest)
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ROUTE OF EXPOSURE :
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Multiple routes
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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179 gm/kg/1Y-I
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TOXIC EFFECTS :
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Tumorigenic - equivocal tumorigenic agent by RTECS criteria Skin and Appendages - tumors
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TYPE OF TEST :
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TD - Toxic dose (other than lowest)
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ROUTE OF EXPOSURE :
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Oral
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SPECIES OBSERVED :
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Rodent - rat
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DOSE/DURATION :
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90 gm/kg/1Y-I
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TOXIC EFFECTS :
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Tumorigenic - equivocal tumorigenic agent by RTECS criteria Endocrine - thyroid tumors
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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DOSE :
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240 mg/kg
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SEX/DURATION :
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female 12 day(s) after conception
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TOXIC EFFECTS :
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Reproductive - Specific Developmental Abnormalities - Central Nervous System Reproductive - Specific Developmental Abnormalities - musculoskeletal system
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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DOSE :
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1 gm/kg
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SEX/DURATION :
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female 12 day(s) after conception
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TOXIC EFFECTS :
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Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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DOSE :
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1400 mg/kg
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SEX/DURATION :
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female 16-22 day(s) after conception
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TOXIC EFFECTS :
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Reproductive - Specific Developmental Abnormalities - endocrine system
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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DOSE :
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4800 mg/kg
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SEX/DURATION :
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female 17-22 day(s) after conception lactating female 10 day(s) post-birth
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TOXIC EFFECTS :
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Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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DOSE :
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1 gm/kg
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SEX/DURATION :
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female 10 day(s) after conception
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TOXIC EFFECTS :
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Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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DOSE :
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22400 mg/kg
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SEX/DURATION :
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female 10 week(s) pre-mating
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TOXIC EFFECTS :
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Reproductive - Maternal Effects - uterus, cervix, vagina Reproductive - Maternal Effects - other effects
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TYPE OF TEST :
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TDLo - Lowest published toxic dose
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ROUTE OF EXPOSURE :
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Oral
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DOSE :
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9 gm/kg
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SEX/DURATION :
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male 90 day(s) pre-mating
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TOXIC EFFECTS :
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Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count) Reproductive - Paternal Effects - other effects on male
MUTATION DATA
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TYPE OF TEST :
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Mutation in mammalian somatic cells
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TEST SYSTEM :
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Rodent - hamster Lung
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DOSE/DURATION :
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10 mmol/L
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REFERENCE :
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ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000 Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year: 58,5,1985 *** REVIEWS *** IARC Cancer Review:Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 7,95,1974 IARC Cancer Review:Human No Adequate Data IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 7,95,1974 IARC Cancer Review:Group 2B IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,56,1987 TOXICOLOGY REVIEW 85CVA2 "Oncology 1970, Proceedings of the Tenth International Cancer Congress," Chicago, Year Book Medical Pub., 1971 Volume(issue)/page/year: 5,250,1970 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-FINLAND;Carcinogen JAN 1993 OEL-FRANCE;Carcinogen JAN 1993 OEL-GERMANY;Carcinogen JAN 1993 OEL-RUSSIA:STEL 0.3 mg/m3 JAN 1993 OEL-SWEDEN;Carcinogen JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82272 No. of Facilities: 1179 (estimated) No. of Industries: 29 No. of Occupations: 25 No. of Employees: 12517 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 82272 No. of Facilities: 2999 (estimated) No. of Industries: 50 No. of Occupations: 57 No. of Employees: 37571 (estimated) No. of Female Employees: 10969 (estimated)
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