Agent Name

Diisodecyl phthalate

Alternative Name

DIDP

CAS Number

26761-40-0

Formula

C28-H46-O4

Major Category

Plastics & Rubber

Synonyms

DIDP; 1,2-Benzenedicarboxylic acid, diisodecyl ester; Bis(isodecyl) phthalate; Bis(isodecyl)phthalate; DIDP (plasticizer); Di(i-decyl) phthalate; DIDP; PX 120; Palatinol Z; Phthalic acid, bis(8-methylnonyl) ester; Phthalic acid, diisodecyl ester; Plasticized DDP; Sicol 184; Vestinol DZ; [ChemIDplus]

Category

Phthalate Esters

Description

Clear liquid; [Hawley] Oily viscous liquid; [CHEMINFO]

Sources/Uses

Used as plasticizer for polyvinyl chloride in calendered film, coated fabrics, building wire jackets, wire and cable extrusion, and other applications; [HSDB]

Comments

An irritant; [Hawley] Oral LD50 (rat) = 64,000 mg/kg; [ChemIDplus] A skin and eye irritant; May cause liver injury; [ICSC] Like dioctyl phthalate, it may cause CNS depression and mild liver toxicity after ingestion of large amounts; [HSDB] A mild skin and eye irritant; "Di-"isodecyl" phthalate is a complex mixture containing mainly C10-branched isomers, with a mean formula, C28-H46-O4 and a mean molecular weight of 446.68. There are two di-"isodecyl" phthalate products (DIDP), with two different CAS Nos. (26761-40-0 and 68515-49-1), which contain a number of components. The main chemical structures or chain structures present in DIDP, include trimethylheptyl, dimethyloctyl, methylnonyl and n-decyl." [CHEMINFO] May cause irritation; [MSDSonline] See "PHTHALATE ESTERS." See "1,2-Benzenedicarboxylic acid, di-C9-11-branched alkyl esters, C10-rich."

Exposure Assessment
Vapor Pressure

5.28E-7 mm Hg

Lethal Concentration

LC (rat) > 130 mg/m3/6h

Adverse Effects
Hepatotoxin

Hepatotoxin, Secondary

Links to Other NLM Databases
Health Studies

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Toxicity Information

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Chemical Information

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Biomedical References

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Processes

Industrial Processes with risk of exposure: