2,6-di-tert-butyl-4-methylphenol

2,6-di-tert-butyl-4-methylphenol Structure
2,6-di-tert-butyl-4-methylphenol
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Common Name 2,6-di-tert-butyl-4-methylphenol
CAS Number 128-37-0 Molecular Weight 220.350
Density 1.048 Boiling Point 265 ºC
Molecular Formula C15H24O Melting Point 69-71 ºC
MSDS2,6-di-tert-butyl-4-methylphenol MSDS|SDS|pdf download Chinese USA Flash Point 127 ºC
Symbol GHS09
GHS09
Signal Word Warning

 Names

[ Name ]: 2,6-di-tert-butyl-4-methylphenol
[ Synonym ]: More Synonyms

 Chemical & Physical Properties

[ Density ]: 1.048
[ Boiling Point ]: 265 ºC
[ Melting Point ]: 69-71 ºC
[ Molecular Formula ]: C15H24O
[ Molecular Weight ]: 220.350
[ Flash Point ]: 127 ºC
[ Exact Mass ]: 220.182709
[ PSA ]: 20.23000
[ LogP ]: 5.32
[ Vapour density ]: 7.6 (vs air)
[ Vapour Pressure ]: 0.0±0.6 mmHg at 25°C
[ Index of Refraction ]: 1.499
[ Water Solubility ]: insoluble

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GO7875000
CHEMICAL NAME :
p-Cresol, 2,6-di-tert-butyl-
CAS REGISTRY NUMBER :
128-37-0
LAST UPDATED :
199712
DATA ITEMS CITED :
79
MOLECULAR FORMULA :
C15-H24-O
MOLECULAR WEIGHT :
220.39
WISWESSER LINE NOTATION :
1X1&1&R BQ E1 CX1&1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Human
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Human - woman
DOSE/DURATION :
80 mg/kg
TOXIC EFFECTS :
Behavioral - coma Gastrointestinal - gastritis Gastrointestinal - nausea or vomiting
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
890 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
650 mg/kg
TOXIC EFFECTS :
Behavioral - tremor Lungs, Thorax, or Respiration - chronic pulmonary edema
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
138 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - chronic pulmonary edema Lungs, Thorax, or Respiration - other changes Blood - hemorrhage
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
180 mg/kg
TOXIC EFFECTS :
Behavioral - sleep
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - cat
DOSE/DURATION :
940 mg/kg
TOXIC EFFECTS :
Gastrointestinal - hypermotility, diarrhea Behavioral - tremor Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
2100 mg/kg
TOXIC EFFECTS :
Gastrointestinal - hypermotility, diarrhea Behavioral - tremor Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
10700 mg/kg
TOXIC EFFECTS :
Gastrointestinal - hypermotility, diarrhea Behavioral - tremor Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
109 gm/kg/2Y-C
TOXIC EFFECTS :
Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Blood - changes in erythrocyte (RBC) count Blood - changes in leukocyte (WBC) count
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
27 gm/kg/90D-C
TOXIC EFFECTS :
Liver - changes in liver weight Endocrine - evidence of thyroid hyperfunction Endocrine - changes in thyroid weight
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
37800 mg/kg/6W-C
TOXIC EFFECTS :
Liver - changes in liver weight Endocrine - changes in adrenal weight Nutritional and Gross Metabolic - weight loss or decreased weight gain
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
5600 mg/kg/16W-C
TOXIC EFFECTS :
Liver - changes in liver weight Kidney, Ureter, Bladder - other changes in urine composition
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
275 mg/kg/26W-C
TOXIC EFFECTS :
Liver - changes in liver weight Skin and Appendages - hair Nutritional and Gross Metabolic - weight loss or decreased weight gain
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
112 gm/kg/80W-C
TOXIC EFFECTS :
Liver - changes in liver weight Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - hepatic microsomal mixed oxidase (dealkylation, hydroxylation, etc.) Biochemical - Metabolism (Intermediary) - other proteins
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
5040 mg/kg/7D-C
TOXIC EFFECTS :
Liver - changes in liver weight Blood - changes in erythrocyte (RBC) count Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - transaminases
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
13500 mg/kg/18D-I
TOXIC EFFECTS :
Liver - changes in liver weight Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other Enzymes
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
48600 mg/kg/30D-C
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - changes in lung weight Liver - changes in liver weight Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
5 gm/kg/4W-I
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - changes in lung weight Related to Chronic Data - death
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Primate - monkey
DOSE/DURATION :
14 gm/kg/4W-I
TOXIC EFFECTS :
Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - phosphatases
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - hamster
DOSE/DURATION :
1596 mg/kg/14D-C
TOXIC EFFECTS :
Liver - changes in liver weight Nutritional and Gross Metabolic - weight loss or decreased weight gain Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other transferases
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
134 gm/kg/32W-C
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Kidney, Ureter, Bladder - tumors Tumorigenic - cells (cultured) transformed
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
435 mg/kg/69W-C
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Lungs, Thorax, or Respiration - tumors Gastrointestinal - tumors
TYPE OF TEST :
TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
247 gm/kg/3Y-C
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Reproductive - Tumorigenic effects - transplacental tumorigenesis Liver - tumors
TYPE OF TEST :
TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
247 gm/kg/3Y-C
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria Reproductive - Tumorigenic effects - ovarian tumors
TYPE OF TEST :
TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1423 mg/kg/43W-C
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria Liver - tumors
TYPE OF TEST :
TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
247 gm/kg
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors
TYPE OF TEST :
TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
963 gm/kg
TOXIC EFFECTS :
Tumorigenic - Carcinogenic by RTECS criteria Gastrointestinal - tumors
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
6 gm/kg
SEX/DURATION :
male 13 week(s) pre-mating female 13 week(s) pre-mating - 3 week(s) post-birth
TOXIC EFFECTS :
Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
18 gm/kg
SEX/DURATION :
male 2 week(s) pre-mating female 2 week(s) pre-mating - 3 week(s) post-birth
TOXIC EFFECTS :
Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain) Reproductive - Effects on Newborn - behavioral
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
9 gm/kg
SEX/DURATION :
male 2 week(s) pre-mating female 2 week(s) pre-mating - 3 week(s) post-birth
TOXIC EFFECTS :
Reproductive - Effects on Newborn - weaning or lactation index (e.g., # alive at weaning per # alive at day 4)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
35 gm/kg
SEX/DURATION :
male 10 week(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
43800 mg/kg
SEX/DURATION :
female 52 day(s) pre-mating female 1-21 day(s) after conception
TOXIC EFFECTS :
Reproductive - Maternal Effects - parturition Reproductive - Effects on Newborn - weaning or lactation index (e.g., # alive at weaning per # alive at day 4) Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
12600 mg/kg
SEX/DURATION :
female 1-21 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - behavioral
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
1200 mg/kg
SEX/DURATION :
female 9 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
TYPE OF TEST :
DNA damage
TYPE OF TEST :
Unscheduled DNA synthesis
TYPE OF TEST :
Unscheduled DNA synthesis
TYPE OF TEST :
Dominant lethal test
TYPE OF TEST :
Mutation test systems - not otherwise specified
TYPE OF TEST :
DNA inhibition
TYPE OF TEST :
Dominant lethal test
TYPE OF TEST :
Sperm Morphology

MUTATION DATA

TYPE OF TEST :
Cytogenetic analysis
TEST SYSTEM :
Rodent - hamster Ovary
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 345,73,1995 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-TWA 10 mg/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 IARC Cancer Review:Animal Limited 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: 40,161,1986 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: 40,161,1986 IARC Cancer Review:Group 3 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 FEPRA7 Federation Proceedings, Federation of American Societies for Experimental Biology. (Bethesda, MD) V.1-46, 1942-87. Volume(issue)/page/year: 35,89,1976 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 10 mg/m3 JAN 1993 OEL-BELGIUM:TWA 10 mg/m3 JAN 1993 OEL-FINLAND:TWA 10 mg/m3;STEL 20 mg/m3;Skin JAN 1993 OEL-FRANCE:TWA 10 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 10 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 10 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 10 mg/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO 2,6-DI-t-BUTYL-p-CRESOL-air:10H TWA 10 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83383 No. of Facilities: 1526 (estimated) No. of Industries: 32 No. of Occupations: 39 No. of Employees: 28860 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83383 No. of Facilities: 27242 (estimated) No. of Industries: 210 No. of Occupations: 154 No. of Employees: 591238 (estimated) No. of Female Employees: 163774 (estimated)

 Safety Information

[ Symbol ]: GHS09
GHS09
[ Signal Word ]: Warning
[ Hazard Statements ]: H410
[ Precautionary Statements ]: P273-P501
[ Personal Protective Equipment ]: dust mask type N95 (US);Eyeshields;Gloves
[ Hazard Codes ]: Xn:Harmful
[ Risk Phrases ]: R22;R36/37/38
[ Safety Phrases ]: S26-S36-S37/39
[ RIDADR ]: 3077
[ WGK Germany ]: 1
[ RTECS ]: GO7875000
[ Packaging Group ]: III
[ Hazard Class ]: 9
[ HS Code ]: 2907199090

 Synthetic Route

 Customs

[ HS Code ]: 2907199090
[ Summary ]: 2907199090 other monophenols VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

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