*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : SZ0181000 CHEMICAL NAME : Phosphine oxide, dioctylisopentyl- CAS REGISTRY NUMBER : 53521-41-8 BEILSTEIN REFERENCE NO. : 2106520 LAST UPDATED : 199612 DATA ITEMS CITED : 5 MOLECULAR FORMULA : C21-H45-O-P MOLECULAR WEIGHT : 344.63 SYNONYMS/TRADE NAMES : * Dioctylisopentylphosphine oxide * Isopentyldioctylphosphine oxide * Phosphine oxide, (3-methylbutyl)dioctyl- *** 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 : 8369 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 47(8),27,1982 TYPE OF TEST : LC50 - Lethal concentration, 50 percent kill ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 3311 gm/m3 TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 47(8),27,1982 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 9500 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 47(8),27,1982 TYPE OF TEST : LC50 - Lethal concentration, 50 percent kill ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 1288 gm/m3 TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 47(8),27,1982 ** OTHER MULTIPLE DOSE TOXICITY DATA ** TYPE OF TEST : TCLo - Lowest published toxic concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 29700 ug/m3/6H/17W-I TOXIC EFFECTS : Brain and Coverings - recordings from specific areas of CNS Cardiac - EKG changes not diagnostic of specified effects Liver - liver function tests impaired REFERENCE : GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 47(8),27,1982 *** END OF RECORD ***