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PHOSPHOROUS ACID TRIS(4-METHYLPHENYL) ESTER

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Origin: China

Cas No: 620-42-8

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 620-42-8 Formula: C21H21O3P Molecular Weight: 352.36300

Basic Info

Chemical Name	PHOSPHOROUS ACID TRIS(4-METHYLPHENYL) ESTER
Synonyms	Phosphorous acid, tris(4-methylphenyl) ester; tri-p-tolyl phosphite; PHOSPHOROUS ACID TRI-P-TOLYL ESTER; Tri-p-tolyl phosphite,tech.; TRI-P-CRESYL PHOSPHITE;
CAS No.	620-42-8
Molecular Formula	C21H21O3P
Molecular Weight	352.36300
PSA	41.28000
LogP	6.37550

Properties

Density	1.11
Boiling Point	238ºC (7 mmHg)
Flash Point	93ºC
Refractive Index	1.5724-1.5744

Safety Info

HS Code	2920901900
Risk Statements	R34

Synthesis Route

p-cresol→PHOSPHOROUS ACID TRIS(4-METHYLPHENYL) ESTER
p-cresol+sodium,4-methylphenolate→PHOSPHOROUS ACID TRIS(4-METHYLPHENYL) ESTER
p-cresol+phosphorus trichloride→PHOSPHOROUS ACID TRIS(4-METHYLPHENYL) ESTER

Toxicity

Exposure Route	Type of Test	Species Observed	Dose/Duration	Toxic Effects
Subcutaneous	LDLo - Lowest published lethal dose	Rodent - rat	3 gm/kg	1.Peripheral Nerve and Sensation-flaccid paralysis without anesthesia (usually neuromuscular blockage) 2.Behavioral-tremor 3.Behavioral-muscle weakness
Subcutaneous	LDLo - Lowest published lethal dose	Mammal - cat	200 mg/kg	1.Behavioral-ataxia