rifamycin cas no:6998-60-3

Namerifamycin
CAS6998-60-3
Synonyms-
EINECS(EC#)230-273-3
Molecular FormulaC37H47NO12
Molecular Weight697.773

Safety Poison by intracerebral route. Moderately toxic by ingestion, intraperitoneal, and intravenous routes. An experimental teratogen. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx. Used as an antibacterial agent.

CHEMICAL IDENTIFICATION

RTECS NUMBER :

KD1922000

CHEMICAL NAME :

2,7-(Epoxypentadeca(1,11,13)trienimino)naphtho(2,1-b) furan-1,11(2H)-dione, 5,6,9,17,19,21-hexahydroxy-23-methoxy-2,4,12,16,18,20 ,22-heptamethyl-, 21-acetate

CAS REGISTRY NUMBER :

6998-60-3

LAST UPDATED :

199509

DATA ITEMS CITED :

11

MOLECULAR FORMULA :

C37-H47-N-O12

MOLECULAR WEIGHT :

697.85

WISWESSER LINE NOTATION :

T C6 B65-24- A D E 2BC G& AV LO NO F&VM OU B&U D&U MH&&&TJ DQ GQ IQ J1 M1 QO1 R1 SOV1 T1 UQ V

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

2120 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 :

625 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 :

450 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 :

Intracerebral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

5800 ug/kg

TOXIC EFFECTS :

Behavioral - convulsions or effect on seizure threshold

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

700 mg/kg

SEX/DURATION :

female 7-13 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - musculoskeletal system

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

500 mg/kg

SEX/DURATION :

female 2 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

900 mg/kg

SEX/DURATION :

female 8-16 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Specific Developmental Abnormalities - musculoskeletal system Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

1800 mg/kg

SEX/DURATION :

female 8-16 day(s) after conception

TOXIC EFFECTS :

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

MUTATION DATA

TYPE OF TEST :

Cytogenetic analysis

TEST SYSTEM :

Rodent - mouse Mammary gland

DOSE/DURATION :

6300 nmol/L/24H (Continuous)

REFERENCE :

JTSCDR Journal of Toxicological Sciences. (Japanese Soc. of Toxicological Sciences, 4th Floor, Gakkai Center Bldg., 4-16, Yayoi 2-chome, Bunkyo-ku, Tokyo 113, Japan) V.1- 1976- Volume(issue)/page/year: 5,141,1980 *** REVIEWS *** TOXICOLOGY REVIEW ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 15,951,1965