Agent Name

m-Phthalodinitrile

CAS Number

626-17-5

Formula

C8-H4-N2

Major Category

Nitrogen Compounds

Synonyms

1,3-Benzendikarbonitril [Czech]; 1,3-Benzenedicarbonitrile; 1,3-Benzodinitrile; 1,3-Dicyanobenzene; 3-Cyanobenzonitrile; Dinitrile of isophthalic acid; IPN; Isoftalodinitril [Czech]; Isoftalonitril [Czech]; Isophthalodinitrile; Nitril kyseliny isoftalove [Czech]; m-Benzenedinitrile; m-Dicyanobenzene; m-Phthalodinitrile; [ChemIDplus]

Category

Nitriles

Description

Needle-like, colorless to white, crystalline, flaky solid with an almond-like odor; [NIOSH]

Sources/Uses

Used in the production of polyurethane coatings and tetrachloroisophthalonitrile; [ACGIH]

Comments

An oral dose of 250 mg/kg causes convulsions and death in rabbits. Unlike the aliphatic nitriles, aromatic nitriles such as m-phthalodinitrile do not liberate cyanide in the body. No reports of adverse effects were found in a review of 15 years of industrial experience with this chemical. [ACGIH] An eye irritant; [ICSC]

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

TLV (ACGIH)

5 mg/m3, inhalable fraction and vapor

Vapor Pressure

0.00569 mm Hg

Lethal Concentration

LC50 (rat) > 8,970 mg/m3/1h

Explanatory Notes

ERG Giuide for "Nitriles, toxic, solid, n.o.s."

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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Other Information

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