2-Amino-1,3,4-thiadiazole

DATA ITEMS CITED :

15

MOLECULAR FORMULA :

C2-H3-N3-S

MOLECULAR WEIGHT :

101.14

WISWESSER LINE NOTATION :

T5NN DSJ CZ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

200 mg/kg

TOXIC EFFECTS :

Behavioral - muscle weakness Gastrointestinal - hypermotility, diarrhea Skin and Appendages - hair

REFERENCE :

TAKHAA Takeda Kenkyusho Ho. Journal of the Takeda Research Laboratories. (Takeda Yakuhin Kogyo K.K., 2-17-85 Jusohon-machi, Yodogawa-ku, Osaka 532, Japan) V.29- 1970- Volume(issue)/page/year: 35,68,1976

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Subcutaneous

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

200 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

JHMJAX Johns Hopkins Medical Journal. (Baltimore, MD) V.120-151, 1967-82. Discontinued. Volume(issue)/page/year: 130,95,1972

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

6500 mg/kg

TOXIC EFFECTS :

Behavioral - muscle weakness Gastrointestinal - hypermotility, diarrhea Skin and Appendages - hair

REFERENCE :

TAKHAA Takeda Kenkyusho Ho. Journal of the Takeda Research Laboratories. (Takeda Yakuhin Kogyo K.K., 2-17-85 Jusohon-machi, Yodogawa-ku, Osaka 532, Japan) V.29- 1970- Volume(issue)/page/year: 35,68,1976 ** REPRODUCTIVE DATA **

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

20 mg/kg

SEX/DURATION :

female 10 day(s) after conception

TOXIC EFFECTS :

Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth)

REFERENCE :

YHHPAL Yaoxue Xuebao. Acta Pharmaceutica Sinica. Pharmaceutical Journal. (China International Book Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.1- 1953- Suspended 1966-78. Volume(issue)/page/year: 16,654,1981

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

5 mg/kg

SEX/DURATION :

female 10 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - musculoskeletal system Reproductive - Specific Developmental Abnormalities - other developmental abnormalities

REFERENCE :

CPHPA5 Jiepou Xuebao. Journal of Anatomy. (China International Book Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.1-9, 1953-66; V.10- 1979- Volume(issue)/page/year: 12,212,1981

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

20 mg/kg

SEX/DURATION :

female 10 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Embryo or Fetus - fetal death

REFERENCE :

CPHPA5 Jiepou Xuebao. Journal of Anatomy. (China International Book Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.1-9, 1953-66; V.10- 1979- Volume(issue)/page/year: 12,212,1981

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Intraperitoneal

DOSE :

100 mg/kg

SEX/DURATION :

female 16 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - hepatobiliary system Reproductive - Effects on Newborn - biochemical and metabolic

REFERENCE :

TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 27,29A,1983

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Intraperitoneal

DOSE :

1600 mg/kg

SEX/DURATION :

female 1-16 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - Central Nervous System Reproductive - Specific Developmental Abnormalities - eye/ear Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue)

REFERENCE :

TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 5,250,1972

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Intraperitoneal

DOSE :

1600 mg/kg

SEX/DURATION :

female 1-16 day(s) after conception

TOXIC EFFECTS :

Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :

TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 5,250,1972

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Intraperitoneal

DOSE :

100 mg/kg

SEX/DURATION :

female 12 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue) Reproductive - Specific Developmental Abnormalities - body wall Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :

JEEMAF Journal of Embryology and Experimental Morphology. (Essex, UK) V.1-98, 1953-86. For Publisher information, see DEVPED Volume(issue)/page/year: 30,257,1973

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Intraperitoneal

DOSE :

100 mg/kg

SEX/DURATION :

female 12 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - cardiovascular (circulatory) system Reproductive - Specific Developmental Abnormalities - gastrointestinal system

REFERENCE :

JEEMAF Journal of Embryology and Experimental Morphology. (Essex, UK) V.1-98, 1953-86. For Publisher information, see DEVPED Volume(issue)/page/year: 30,257,1973

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Subcutaneous

DOSE :

175 mg/kg

SEX/DURATION :

female 10-11 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :

JHMJAX Johns Hopkins Medical Journal. (Baltimore, MD) V.120-151, 1967-82. Discontinued. Volume(issue)/page/year: 130,95,1972