*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : HS6475000
CHEMICAL NAME           : Dibutyl phosphite
CAS REGISTRY NUMBER     : 1809-19-4
BEILSTEIN REFERENCE NO. : 1099706
REFERENCE               : 4-01-00-01525 (Beilstein Handbook Reference)
LAST UPDATED            : 199806
DATA ITEMS CITED        : 7
MOLECULAR FORMULA       : C8-H19-O3-P
MOLECULAR WEIGHT        : 194.24
WISWESSER LINE NOTATION : 4OPQO4
SYNONYMS/TRADE NAMES :
   * Butyl alcohol, hydrogen phosphite
   * Dibutylfosfit
   * Dibutyl hydrogen phosphite
   * Mobil DBHP
 
                       *** 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           : 3200 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ALBRW* Albright & Wilson Inc.  (P.O. Box 26229, Richmond, VA 23260-6229)
   Volume(issue)/page/year: #OPB-3,1984
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : >20 gm/m3
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ALBRW* Albright & Wilson Inc.  (P.O. Box 26229, Richmond, VA 23260-6229)
   Volume(issue)/page/year: #OPB-3,1984
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 1990 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   JIHTAB Journal of Industrial Hygiene and Toxicology.  (Cambridge, MA)
   V.18-31, 1936-49.  For publisher information, see AEHLAU.
   Volume(issue)/page/year: 31,60,1949

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA Section 8(d) unpublished health/safety studies
   
   EPA TSCA Section 8(e) Risk Notification, 8EHQ-0892-8985
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***