*** 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 ***