*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : NJ0530000
CHEMICAL NAME : Imidazolidinethione, N-nitroso-
CAS REGISTRY NUMBER : 3715-92-2
LAST UPDATED : 199012
DATA ITEMS CITED : 12
MOLECULAR FORMULA : C3-H5-O-N3-S
MOLECULAR WEIGHT : 131.17
WISWESSER LINE NOTATION : T5N BYNTJ BUS CNO
COMPOUND DESCRIPTOR : Tumorigen
Mutagen
Reproductive Effector
SYNONYMS/TRADE NAMES :
* N-Nitrosoethylenethiourea
* NO-Etu
*** HEALTH HAZARD DATA ***
** ACUTE TOXICITY DATA **
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 400 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 56,335,1978
** TUMORIGENIC DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 530 mg/kg/9W-I
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria
Lungs, Thorax, or Respiration - tumors
Blood - lymphoma, including Hodgkin's disease
REFERENCE :
CALEDQ Cancer Letters (Shannon, Ireland). (Elsevier Scientific Pub. Ireland
Ltd., POB 85, Limerick, Ireland) V.1- 1975- Volume(issue)/page/year:
7,339,1979
** REPRODUCTIVE DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 120 mg/kg
SEX/DURATION : female 13 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Specific Developmental Abnormalities - Central Nervous System
Reproductive - Specific Developmental Abnormalities - homeostasis
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: 21,367,1980
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 160 mg/kg
SEX/DURATION : female 13 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - craniofacial
(including nose and tongue)
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: 21,367,1980
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 120 mg/kg
SEX/DURATION : female 15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - viability index (e.g., # alive at day 4
per # born alive)
Reproductive - Effects on Newborn - physical
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: 21,367,1980
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE : 400 mg/kg
SEX/DURATION : female 8 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
Reproductive - Specific Developmental Abnormalities - respiratory system
Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
49WEAZ "Pesticide Chemistry: Human Welfare and the Environment, Proceedings
of the International Congress of Pesticide Chemistry, 5th, Kyoto, Japan,
1982," Miyamoto, J. and Kearney, P.C., eds., Oxford, UK, Pergamon Press
Ltd., 1983 Volume(issue)/page/year: 3,479,1983
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE : 400 mg/kg
SEX/DURATION : female 8 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
resorbed implants per total number of implants)
REFERENCE :
49WEAZ "Pesticide Chemistry: Human Welfare and the Environment, Proceedings
of the International Congress of Pesticide Chemistry, 5th, Kyoto, Japan,
1982," Miyamoto, J. and Kearney, P.C., eds., Oxford, UK, Pergamon Press
Ltd., 1983 Volume(issue)/page/year: 3,479,1983
** MUTATION DATA **
TYPE OF TEST : Micronucleus test
ROUTE OF EXPOSURE : Intraperitoneal
TEST SYSTEM : Rodent - mouse
DOSE/DURATION : 120 mg/kg
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 48,225,1977
TYPE OF TEST : Dominant lethal test
ROUTE OF EXPOSURE : Oral
TEST SYSTEM : Rodent - mouse
DOSE/DURATION : 500 mg/kg/5D (Intermittent)
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 54,258,1978
TYPE OF TEST : Sister chromatid exchange
TEST SYSTEM : Rodent - hamster Lung
DOSE/DURATION : 50 umol/L
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 78,177,1980
*** STATUS IN U.S. ***
EPA GENETOX PROGRAM 1988, Negative: Rodent dominant lethal
EPA GENETOX PROGRAM 1988, Inconclusive: Mammalian micronucleus
*** END OF RECORD ***