Phosphorous acid,tris(4-methylphenyl) ester

Names

[ CAS No. ]:
620-42-8

[ Name ]:
Phosphorous acid,tris(4-methylphenyl) ester

[Synonym ]:
EINECS 210-639-9
MFCD00041909
Tri-p-tolyl phosphite,tech.
tri-p-tolyl phosphite
PHOSPHOROUS ACID TRI-P-TOLYL ESTER
TRI-P-CRESYL PHOSPHITE

Chemical & Physical Properties

[ Density]:
1.11

[ Boiling Point ]:
238ºC (7 mmHg)

[ Melting Point ]:
52°C

[ Molecular Formula ]:
C₂₁H₂₁O₃P

[ Molecular Weight ]:
352.36300

[ Flash Point ]:
93ºC

[ Exact Mass ]:
352.12300

[ PSA ]:
41.28000

[ LogP ]:
6.37550

[ Appearance of Characters ]:
solid

[ Index of Refraction ]:
1.5724-1.5744

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: TH1100000

CHEMICAL NAME :: Phosphorous acid, tri-p-cresyl ester

CAS REGISTRY NUMBER :: 620-42-8

BEILSTEIN REFERENCE NO. :: 0620298

LAST UPDATED :: 199709

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C21-H21-O3-P

MOLECULAR WEIGHT :: 352.39

WISWESSER LINE NOTATION :: QR D1OPO1R DQ&O1R DQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3 gm/kg

TOXIC EFFECTS :: Peripheral Nerve and Sensation - flaccid paralysis without anesthesia (usually neuromuscular blockage) Behavioral - tremor Behavioral - muscle weakness

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: 49,78,1933

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Mammal - cat

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Behavioral - ataxia

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: 49,78,1933

Safety Information

[ Hazard Codes ]:
C

[ Risk Phrases ]:
34

[ Safety Phrases ]:
S25;S45;S36/S37/S39

[ RTECS ]:
TH1100000

[ HS Code ]:
2920901900

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2920901900

[ Summary ]:
2920901900 VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%