Agent Name

Tri-m-cresyl phosphate

CAS Number

563-04-2

Formula

C21-H21-O4-P

Major Category

Other Classes

Synonyms

Phosphoric acid tri-m-tolyl ester; Phosphoric acid, tri(3-tolyl)ester; Phosphoric acid, tris(3-methylphenyl) ester; Tri-m-tolyl phosphate; Tris(m-tolyl) phosphate; Tris-m-cresyl phosphate; [ChemIDplus] UN2574

Category

Organophosphates, Other

Description

Wax; mp = 25.5 deg C; [HSDB] Slightly yellow to pink clear liquid; [MSDSonline]

Sources/Uses

Used in a isomeric mixture known as Tricresyl phosphate (CAS # 1330-78-5); No uses for the isolated isomer; [HSDB]

Comments

Permanent paralysis reported in worker involved in manufacture of meta and para isomers; Mildly toxic to animals; Six times less toxic than the ortho isomer; Emergency treatment: "TOCP and related agents"; [HSDB] A metabolite of the ortho isomer (TOCP) caused "ginger jake paralysis," a motor neuropathy. See "Triorthocresyl phosphate," Tri-p-cresyl phosphate," and "Tricresyl phosphate (mixed isomers)."

Exposure Assessment
Vapor Pressure

1.09E-7 mm Hg

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Tricesyl phosphate." See "2018 Notice of Intended Changes." [TLVs and BEIs]

Adverse Effects
Other Poison

Organophosphate

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Other Information

No other related information on this agent was found.