*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : NI3980000
CHEMICAL NAME : 1H-Imidazole-4-carboxamide,
5-hydroxy-1-beta-D-ribofuranosyl-
CAS REGISTRY NUMBER : 50924-49-7
BEILSTEIN REFERENCE NO. : 4151713
LAST UPDATED : 199612
DATA ITEMS CITED : 34
MOLECULAR FORMULA : C9-H13-N3-O6
MOLECULAR WEIGHT : 259.25
WISWESSER LINE NOTATION : T5OTJ B1Q CQ DQ E- AT5N CNJ DVZ EQ
COMPOUND DESCRIPTOR : Drug
Mutagen
Reproductive Effector
SYNONYMS/TRADE NAMES :
* Anhydro-4-carbamoyl-5-hydroxy-1-beta-D-ribofuranosyl-imidazolium
hydroxide
* Bredinin
* Bredinine
* 4-Carbamoyl-1-beta-D-ribofuranosyl-imidazolium-5-olate
* HE-69
* 5-Hydroxy-1-beta-D-ribofuranosyl-1H-imidazole-4-carboxamide
* Mizoribine
*** 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 : 2847 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo,
Japan) Volume(issue)/page/year: -,1148,1990
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
DRFUD4 Drugs of the Future. (J.R. Prous, S.A., Apartado de Correos 540,
08080 Barcelona, Spain) V.1- 1975/76- Volume(issue)/page/year:
3,567,1978
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 3795 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo,
Japan) Volume(issue)/page/year: -,1148,1990
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 1500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
DRFUD4 Drugs of the Future. (J.R. Prous, S.A., Apartado de Correos 540,
08080 Barcelona, Spain) V.1- 1975/76- Volume(issue)/page/year:
3,567,1978
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intramuscular
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >2800 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo,
Japan) Volume(issue)/page/year: -,1148,1990
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : >4883 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo,
Japan) Volume(issue)/page/year: -,1148,1990
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85GDA2 "CRC Handbook of Antibiotic Compounds," Vols.1- , Berdy, J., Boca
Raton, FL, CRC Press, 1980- Volume(issue)/page/year: 5,275,1981
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : >4883 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo,
Japan) Volume(issue)/page/year: -,1148,1990
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
85GDA2 "CRC Handbook of Antibiotic Compounds," Vols.1- , Berdy, J., Boca
Raton, FL, CRC Press, 1980- Volume(issue)/page/year: 5,275,1981
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intramuscular
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 2800 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo,
Japan) Volume(issue)/page/year: -,1148,1990
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 150 mg/kg/30D-C
TOXIC EFFECTS :
Endocrine - changes in spleen weight
Blood - normocytic anemia
Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 26,293,1983
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 2730 mg/kg/52W-C
TOXIC EFFECTS :
Endocrine - other changes
Blood - normocytic anemia
Related to Chronic Data - changes in uterine weight
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 26,307,1983
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : 1800 mg/kg/30D-C
TOXIC EFFECTS :
Behavioral - food intake (animal)
Blood - normocytic anemia
Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 26,327,1983
** REPRODUCTIVE DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 11 mg/kg
SEX/DURATION : female 7-17 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - eye/ear
Reproductive - Specific Developmental Abnormalities - body wall
Reproductive - Specific Developmental Abnormalities - cardiovascular
(circulatory) system
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 26,377,1983
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 11 mg/kg
SEX/DURATION : female 7-17 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
resorbed implants per total number of implants)
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 26,377,1983
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 48 mg/kg
SEX/DURATION : female 17-22 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - stillbirth
Reproductive - Effects on Newborn - live birth index (measured after birth)
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 26,397,1983
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE : 80 mg/kg
SEX/DURATION : female 17-22 day(s) after conception
lactating female 4 day(s) post-birth
TOXIC EFFECTS :
Reproductive - Effects on Newborn - viability index (e.g., # alive at day 4
per # born alive)
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 26,397,1983
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE : 5 mg/kg
SEX/DURATION : female 11 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
resorbed implants per total number of implants)
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
Reproductive - Effects on Embryo or Fetus - fetal death
REFERENCE :
SEIJBO Senten Ijo. Congenital Anomalies. (Nippon Senten Ijo Gakkai, c/o
Kinki Daigaku Igakubu Kaibagaku Kyoshitsu, 380 Nishiyama, Sayama-cho,
Mirami-Kawachi-gun, Osaka-fu, Japan) V.1-26, 1960-86. For publisher
information, see CGANE7. Volume(issue)/page/year: 20,359,1980
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE : 5 mg/kg
SEX/DURATION : female 11 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - body wall
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
Reproductive - Specific Developmental Abnormalities - gastrointestinal
system
REFERENCE :
SEIJBO Senten Ijo. Congenital Anomalies. (Nippon Senten Ijo Gakkai, c/o
Kinki Daigaku Igakubu Kaibagaku Kyoshitsu, 380 Nishiyama, Sayama-cho,
Mirami-Kawachi-gun, Osaka-fu, Japan) V.1-26, 1960-86. For publisher
information, see CGANE7. Volume(issue)/page/year: 20,359,1980
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE : 5 mg/kg
SEX/DURATION : female 11 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
SEIJBO Senten Ijo. Congenital Anomalies. (Nippon Senten Ijo Gakkai, c/o
Kinki Daigaku Igakubu Kaibagaku Kyoshitsu, 380 Nishiyama, Sayama-cho,
Mirami-Kawachi-gun, Osaka-fu, Japan) V.1-26, 1960-86. For publisher
information, see CGANE7. Volume(issue)/page/year: 20,359,1980
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE : 5 mg/kg
SEX/DURATION : female 9 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - Central Nervous System
Reproductive - Specific Developmental Abnormalities - craniofacial
(including nose and tongue)
REFERENCE :
SEIJBO Senten Ijo. Congenital Anomalies. (Nippon Senten Ijo Gakkai, c/o
Kinki Daigaku Igakubu Kaibagaku Kyoshitsu, 380 Nishiyama, Sayama-cho,
Mirami-Kawachi-gun, Osaka-fu, Japan) V.1-26, 1960-86. For publisher
information, see CGANE7. Volume(issue)/page/year: 18,227,1978
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE : 75 mg/kg
SEX/DURATION : male 3 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetal death
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 24,711,1982
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rabbit
DOSE : 52 mg/kg
SEX/DURATION : female 6-18 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
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 26,409,1983
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rabbit
DOSE : 39 mg/kg
SEX/DURATION : female 6-18 day(s) after conception
TOXIC EFFECTS :
Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
resorbed implants per total number of implants)
Reproductive - Effects on Embryo or Fetus - fetal death
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 26,409,1983
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - species unspecified
DOSE : 11 mg/kg
SEX/DURATION : female 8-18 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
e.g., stunted fetus)
REFERENCE :
JIDOAA Experimental Animals. Jikken Dobutso Iho. (Nippon Jikken Dobutsu
Gakkai, c/o Keio Gijuku Daigaku Igakubu Jikken Dobutsu Senta, 35
Shinano-machi, Shinjuku-ku, Tokyo 160, Japan) V.1- 1952-
Volume(issue)/page/year: 35,387,1986
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - species unspecified
DOSE : 44 mg/kg
SEX/DURATION : female 8-18 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
Reproductive - Specific Developmental Abnormalities - other developmental
abnormalities
REFERENCE :
JIDOAA Experimental Animals. Jikken Dobutso Iho. (Nippon Jikken Dobutsu
Gakkai, c/o Keio Gijuku Daigaku Igakubu Jikken Dobutsu Senta, 35
Shinano-machi, Shinjuku-ku, Tokyo 160, Japan) V.1- 1952-
Volume(issue)/page/year: 35,387,1986
** MUTATION DATA **
TYPE OF TEST : Cytogenetic analysis
TEST SYSTEM : Human HeLa cell
DOSE/DURATION : 100 umol/L
REFERENCE :
CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut
Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year:
35,1643,1975
TYPE OF TEST : Micronucleus test
ROUTE OF EXPOSURE : Intraperitoneal
TEST SYSTEM : Rodent - mouse
DOSE/DURATION : 5 gm/kg
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 24,703,1982
TYPE OF TEST : Cytogenetic analysis
TEST SYSTEM : Rodent - mouse Leukocyte
DOSE/DURATION : 20 umol/L
REFERENCE :
IDZAAW Japanese Journal of Genetics. Idengaku Zasshi. (Genetics Soc. of
Japan, 111 Tanida, Mishima, Shizuoka-ken, Japan) V.1- 1921-
Volume(issue)/page/year: 51,61,1976
TYPE OF TEST : Cytogenetic analysis
TEST SYSTEM : Rodent - mouse Lymphocyte
DOSE/DURATION : 20 umol/L
REFERENCE :
CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut
Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year:
35,1643,1975
TYPE OF TEST : Sister chromatid exchange
TEST SYSTEM : Rodent - mouse Lymphocyte
DOSE/DURATION : 2500 nmol/L
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 24,703,1982
TYPE OF TEST : Dominant lethal test
ROUTE OF EXPOSURE : Oral
TEST SYSTEM : Rodent - mouse
DOSE/DURATION : 160 mg/kg
REFERENCE :
OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180,
Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 24,711,1982
TYPE OF TEST : Cytogenetic analysis
TEST SYSTEM : Rodent - hamster Fibroblast
DOSE/DURATION : 100 umol/L
REFERENCE :
CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut
Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year:
35,1643,1975
*** STATUS IN U.S. ***
EPA GENETOX PROGRAM 1988, Positive/dose response: In vitro SCE-nonhuman
*** END OF RECORD ***