*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : CQ5775000
CHEMICAL NAME : Barbituric acid, 5-ethyl-5-(1-methylbutyl)-
CAS REGISTRY NUMBER : 76-74-4
BEILSTEIN REFERENCE NO. : 0087067
REFERENCE : 5-24-09-00168 (Beilstein Handbook Reference)
LAST UPDATED : 199710
DATA ITEMS CITED : 24
MOLECULAR FORMULA : C11-H18-N2-O3
MOLECULAR WEIGHT : 226.31
WISWESSER LINE NOTATION : T6VMVMV FHJ FY3&1 F2
COMPOUND DESCRIPTOR : Drug
Reproductive Effector
Human
SYNONYMS/TRADE NAMES :
* Dorsital
* Ethaminal
* 5-Ethyl-5-(1-methylbutyl)barbituric acid
* 5-Ethyl-5-(1-methylbutyl)malonylurea
* Ethyl-propylmethylcarbinylbarbituric acid
* Mebubarbital
* Nembutal
* Neodorm
* Neodorm (new)
* Pentabarbitone
* Pentobarbital
* Pentobarbitone
* Pentobarbiturate
* Pentobarbituric acid
* 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-ethyl-5-(1-methylbutyl)-
* Rivadorm
*** HEALTH HAZARD DATA ***
** ACUTE TOXICITY DATA **
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Human
DOSE/DURATION : 36 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - acute pulmonary edema
REFERENCE :
CTOXAO Clinical Toxicology. (New York, NY) V.1-18, 1968-81. For publisher
information, see JTCTDW. Volume(issue)/page/year: 10,327,1977
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 125 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
REFERENCE :
FEPRA7 Federation Proceedings, Federation of American Societies for
Experimental Biology. (Bethesda, MD) V.1-46, 1942-87.
Volume(issue)/page/year: 7,262,1948
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 108 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PHMGBN Pharmacology: International Journal of Experimental and Clinical
Pharmacology. (S. Karger AG, Postfach CH-4009 Basel, Switzerland) V.1-
1968- Volume(issue)/page/year: 19,182,1979
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 144 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams &
Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10-
Volume(issue)/page/year: 118,139,1956
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 170 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams &
Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10-
Volume(issue)/page/year: 118,139,1956
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 75 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4-
1898- Volume(issue)/page/year: 181,68,1969
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 65 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4-
1898- Volume(issue)/page/year: 141,83,1963
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Mammal - dog
DOSE/DURATION : 50 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans
Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4-
1898- Volume(issue)/page/year: 141,83,1963
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Mammal - cat
DOSE/DURATION : 72 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
FEPRA7 Federation Proceedings, Federation of American Societies for
Experimental Biology. (Bethesda, MD) V.1-46, 1942-87.
Volume(issue)/page/year: 28,1479,1969
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 175 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams &
Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10-
Volume(issue)/page/year: 44,325,1932
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 65 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams &
Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10-
Volume(issue)/page/year: 44,325,1932
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 33 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams &
Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10-
Volume(issue)/page/year: 96,209,1949
** REPRODUCTIVE DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE : 32 mg/kg
SEX/DURATION : female 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
REFERENCE :
ENDOAO Endocrinology (Baltimore). (Williams & Wilkins Co., 428 E. Preston
St., Baltimore, MD 21203) V.1- 1917- Volume(issue)/page/year:
94,1397,1974
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE : 35 mg/kg
SEX/DURATION : female 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Maternal Effects - menstrual cycle changes or disorders
REFERENCE :
CRSBAW Comptes Rendus des Seances de la Societe de Biologie et de Ses
Filiales. (SPPIF, B.P.22, F-41353 Vineuil, France) V.1- 1849-
Volume(issue)/page/year: 167,366,1973
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE : 15 mg/kg
SEX/DURATION : female 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
REFERENCE :
ENDOAO Endocrinology (Baltimore). (Williams & Wilkins Co., 428 E. Preston
St., Baltimore, MD 21203) V.1- 1917- Volume(issue)/page/year:
74,309,1964
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intracerebral
SPECIES OBSERVED : Rodent - rat
DOSE : 1 mg/kg
SEX/DURATION : female 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - other measures of fertility
REFERENCE :
JRPFA4 Journal of Reproduction and Fertility. (Biochemical Soc. Book Depot,
POB 32, Commerce Way, Colchester, Essex CO2 8HP, UK) V.1- 1960-
Volume(issue)/page/year: 42,199,1975
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - hamster
DOSE : 1200 ug/kg
SEX/DURATION : male 3 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - testes, epididymis, sperm duct
Reproductive - Paternal Effects - other effects on male
Reproductive - Fertility - mating performance (e.g. # sperm positive females
per # females mated; # copulations per # estrus cycles)
REFERENCE :
DEPBA5 Developmental Psychobiology. (John Wiley & Sons, Inc., 605 Third
Ave., New York, NY 10158) V.1- 1968- Volume(issue)/page/year: 12,49,1979
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Parenteral
SPECIES OBSERVED : Rodent - hamster
DOSE : 100 mg/kg
SEX/DURATION : female 1 day(s) after conception
TOXIC EFFECTS :
Reproductive - Maternal Effects - oogenesis
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: 24(1),19A,1981
*** REVIEWS ***
TOXICOLOGY REVIEW
PHREA7 Physiological Reviews. (American Physiological Soc., 9650 Rockville
Pike, Bethesda, MD 20814) V.1- 1921- Volume(issue)/page/year:
19,472,1939
TOXICOLOGY REVIEW
ADVPA3 Advances in Pharmacology. (New York, NY) V.1-6, 1962-68. For
publisher information, see AVPCAQ. Volume(issue)/page/year: 4,263,1966
TOXICOLOGY REVIEW
FNSCA6 Forensic Science. (Lausanne, Switzerland) V.1-11, 1972-78. For pub
lisher information, see FSINDR. Volume(issue)/page/year: 2,67,1973
*** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***
NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
NOHS - National Occupational Hazard Survey (1974)
NOHS Hazard Code - 84703
No. of Facilities: 68 (estimated)
No. of Industries: 1
No. of Occupations: 6
No. of Employees: 2770 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - 84703
No. of Facilities: 7 (estimated)
No. of Industries: 1
No. of Occupations: 1
No. of Employees: 489 (estimated)
No. of Female Employees: 300 (estimated)
*** STATUS IN U.S. ***
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
*** END OF RECORD ***