CAS 626-48-2|6-Methyluracil

[1]. Cromby CH, et, al. 6-Methyluracil excretion in 2-methylacetoacetyl-CoA thiolase deficiency and in two children with an unexplained recurrent ketoacidaemia. J Inherit Metab Dis. 1994;17(1):81-4.

[2]. Taran IP, et, al. [The antiradiation action of 6-methyluracil]. Radiobiologiia. Mar-Apr 1993;33(2):285-90.

CHEMICAL IDENTIFICATION

RTECS NUMBER :

YR0700000

CHEMICAL NAME :

Uracil, 6-methyl-

CAS REGISTRY NUMBER :

626-48-2

LAST UPDATED :

199701

DATA ITEMS CITED :

9

MOLECULAR FORMULA :

C5-H6-N2-O2

MOLECULAR WEIGHT :

126.13

WISWESSER LINE NOTATION :

T6MVMVJ F1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

64500 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

LONZA# Personal Communication from LONZA Ltd., CH-4002, Basel, Switzerland Volume(issue)/page/year: 03FEB1981

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

>7500 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

JAPMA8 Journal of the American Pharmaceutical Association, Scientific Edition. (Washington, DC) V.29-49, 1940-60. For publisher information, see JPMSAE. Volume(issue)/page/year: 44,56,1955

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

2700 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

PCJOAU Pharmaceutical Chemistry Journal (English Translation). Translation of KHFZAN. (Plenum Pub. Corp., 233 Spring St., New York, NY 10013) No.1- 1967- Volume(issue)/page/year: 27,112,1993

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Mammal - species unspecified

DOSE/DURATION :

2 gm/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

RPTOAN Russian Pharmacology and Toxicology (English Translation). Translation of FATOAO. (Euromed Pub., 33, Woodlands Rd., Surbiton, Surrey, UK) V.30- 1967- Volume(issue)/page/year: 48,186,1985 ** TUMORIGENIC DATA **

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

18 gm/kg/52W-C

TOXIC EFFECTS :

Tumorigenic - neoplastic by RTECS criteria Endocrine - thyroid tumors

REFERENCE :

VOONAW Voprosy Onkologii. Problems of Oncology. For English translation, see PONCAU. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-10, 1928-37; V.1- 1955- Volume(issue)/page/year: 8(10),49,1962 ** REPRODUCTIVE DATA **

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

2 gm/kg

SEX/DURATION :

female 10 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Embryo or Fetus - fetal death Reproductive - Specific Developmental Abnormalities - urogenital system

REFERENCE :

BEXBAN Bulletin of Experimental Biology and Medicine (English Translation). Translation of BEBMAE. (Plenum Pub. Corp., 233 Spring St., New York, NY 10013) V.41- 1956- Volume(issue)/page/year: 66,1382,1968

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Subcutaneous

DOSE :

20 mg/kg

SEX/DURATION :

female 4 day(s) pre-mating

TOXIC EFFECTS :

Reproductive - Maternal Effects - uterus, cervix, vagina

REFERENCE :

JSICAZ Journal of Scientific and Industrial Research, Section C: Biological Sciences. (New Delhi, India) V.14-21, 1955-62. For publisher information, see IJEBA6. Volume(issue)/page/year: 19,264,1960 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X1624 No. of Facilities: 89 (estimated) No. of Industries: 5 No. of Occupations: 6 No. of Employees: 293 (estimated) No. of Female Employees: 109 (estimated)

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