Triphenylphosphine oxide

Modify Date: 2025-08-21 11:35:49

Triphenylphosphine oxide Structure
Triphenylphosphine oxide structure
Common Name Triphenylphosphine oxide
CAS Number 791-28-6 Molecular Weight 278.285
Density 1.2±0.1 g/cm3 Boiling Point 462.9±18.0 °C at 760 mmHg
Molecular Formula C18H15OP Melting Point 150-157 °C(lit.)
MSDS Chinese USA Flash Point 233.8±21.2 °C
Symbol GHS07
GHS07
Signal Word Warning

 Names

Name triphenylphosphane oxide
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.2±0.1 g/cm3
Boiling Point 462.9±18.0 °C at 760 mmHg
Melting Point 150-157 °C(lit.)
Molecular Formula C18H15OP
Molecular Weight 278.285
Flash Point 233.8±21.2 °C
Exact Mass 278.086060
PSA 26.88000
LogP 2.87
Vapour Pressure 0.0±1.1 mmHg at 25°C
Index of Refraction 1.619
Storage condition Store at RT.
Water Solubility slightly soluble

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
SZ1676000
CHEMICAL NAME :
Phosphine oxide, triphenyl-
CAS REGISTRY NUMBER :
791-28-6
LAST UPDATED :
199710
DATA ITEMS CITED :
7
MOLECULAR FORMULA :
C18-H15-O-P
MOLECULAR WEIGHT :
278.30

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1380 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
KHFZAN Khimiko-Farmatsevticheskii Zhurnal. Chemical Pharmaceutical Journal. For English translation, see PCJOAU. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1967- Volume(issue)/page/year: 24(4),22,1990
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
500 mg/kg
TOXIC EFFECTS :
Behavioral - convulsions or effect on seizure threshold Behavioral - aggression Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0570648
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Bird - chicken
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0570648 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X9397 No. of Facilities: 96 (estimated) No. of Industries: 2 No. of Occupations: 3 No. of Employees: 2100 (estimated) No. of Female Employees: 17 (estimated)

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H302-H315-H319-H335-H412
Precautionary Statements P261-P273-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xn:Harmful
Risk Phrases R22;R52/53
Safety Phrases S26-S61
RIDADR UN 3077 9/PG 3
WGK Germany 2
RTECS SZ1676000
Packaging Group I; II; III
Hazard Class 6.1
HS Code 29310095

 Synthetic Route

 Customs

HS Code 29310095

 Articles20

More Articles
Toward prediction of alkane/water partition coefficients.

J. Med. Chem. 51 , 3720-30, (2008)

Partition coefficients were measured for 47 compounds in the hexadecane/water ( P hxd) and 1-octanol/water ( P oct) systems. Some types of hydrogen bond acceptor presented by these compounds to the pa...

Mechanism of lipid peroxidation in cancer cells in response to gamma-linolenic acid (GLA) analyzed by GC-MS(I): Conjugated dienes with peroxyl (or hydroperoxyl) groups and cell-killing effects.

Anticancer Res. 13(1) , 193-9, (1993)

We have investigated the nature of lipid peroxidation occurring in association with cancer-killing produced by gamma-linolenic acid (GLA) and iron (Fe) in cultured human breast cancer cells (ZR-75-1: ...

Solubilization of triphenylamine, triphenylphosphine, triphenylphosphineoxide and triphenylmethanol in single and binary surfactant systems.

J. Colloid. Interface Sci. 364(1) , 163-9, (2011)

Solubilization and co-solubilization of triphenyls (TPs) viz., triphenylphosphine (TPP), triphenylphosphineoxide (TPPO), triphenylamine (TPA) and triphenylmethanol (TPM) were studied in various single...

 Synonyms

Triphenylphosphine oxid
Triphenylphosphinoxid
Triphenylphosphan-oxid
Triphenylphosphine oxide
triphenyl-phosphineoxid
EINECS 212-338-8
Phosphorane, triphenyl-, oxide
triphenylphosphorusoxide
Ph3P=O
Triphenylphosphoniumolate
TPO
phosphorus(1+), hydroxytriphenyl-, inner salt
MFCD00002080
Triphenylphosphanoxid
AURORA KA-1603
Triphenylphosphineoxide
TPPO
(C6H5)3P=O
Triphenylphosphanoxide
Triphenyl Phosphine Oxide
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