CHEMICAL IDENTIFICATION

RTECS NUMBER :

TH8925000

CHEMICAL NAME :

Phthalazine, 1-hydrazino-

CAS REGISTRY NUMBER :

86-54-4

BEILSTEIN REFERENCE NO. :

0132615

LAST UPDATED :

199612

DATA ITEMS CITED :

29

MOLECULAR FORMULA :

C8-H8-N4

MOLECULAR WEIGHT :

160.20

WISWESSER LINE NOTATION :

T66 CNNJ BMZ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Human - man

DOSE/DURATION :

2086 mg/kg/2Y-I

TOXIC EFFECTS :

Skin and Appendages - dermatitis, allergic (after systemic exposure)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Human - woman

DOSE/DURATION :

730 mg/kg/2Y-I

TOXIC EFFECTS :

Skin and Appendages - dermatitis, allergic (after systemic exposure)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Intramuscular

SPECIES OBSERVED :

Human - man

DOSE/DURATION :

89 ug/kg

TOXIC EFFECTS :

Cardiac - cardiomyopathy including infarction Cardiac - changes in coronary arteries

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

90 mg/kg

TOXIC EFFECTS :

Cardiac - pulse rate increase, without fall in BP Vascular - BP lowering not characterized in autonomic section

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

25 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 :

Intravenous

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

34 mg/kg

TOXIC EFFECTS :

Cardiac - change in rate Behavioral - somnolence (general depressed activity) Gastrointestinal - nausea or vomiting

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

122 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 :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

100 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 :

Subcutaneous

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

150 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 :

Intravenous

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

52 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 :

Mammal - dog

DOSE/DURATION :

100 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 :

Intravenous

SPECIES OBSERVED :

Mammal - dog

DOSE/DURATION :

50 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 - rabbit

DOSE/DURATION :

300 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 - guinea pig

DOSE/DURATION :

250 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

3600 mg/kg/5W-I

TOXIC EFFECTS :

Blood - normocytic anemia Blood - changes in other cell count (unspecified) 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 :

9360 mg/kg/26W-I

TOXIC EFFECTS :

Blood - normocytic anemia Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

45427 mg/kg/2Y-C

TOXIC EFFECTS :

Tumorigenic - Carcinogenic by RTECS criteria Lungs, Thorax, or Respiration - tumors

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

7 mg/kg

SEX/DURATION :

female 34-35 week(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - cardiovascular (circulatory) system

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Unreported

DOSE :

54 mg/kg

SEX/DURATION :

female 26-39 week(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - blood and lymphatic systems (including spleen and marrow)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Unreported

DOSE :

330 mg/kg

SEX/DURATION :

female 1-22 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Newborn - weaning or lactation index (e.g., # alive at weaning per # alive at day 4)

TYPE OF TEST :

Specific locus test

MUTATION DATA

TYPE OF TEST :

Unscheduled DNA synthesis

TEST SYSTEM :

Rodent - rabbit Liver

DOSE/DURATION :

5 mmol/L

REFERENCE :

PNASA6 Proceedings of the National Academy of Sciences of the United States of America. (National Academy of Sciences, Printing & Pub. Office, 2101 Constitution Ave., Washington, DC 20418) V.1- 1915- Volume(issue)/page/year: 79,1269,1982 *** REVIEWS *** IARC Cancer Review:Human Inadequate 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: 24,85,1980 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: 7,222,1987 TOXICOLOGY REVIEW INTEAG Internist. (Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ 07094) V.1- 1960- Volume(issue)/page/year: 15,7,1974 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4187 No. of Facilities: 85 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 8409 (estimated) No. of Female Employees: 7509 (estimated)