1,2-Benzenedicarboxylic acid, di-C9-11-branched alkyl esters, C10-rich

Synonyms

C10-Rich di-C9-11-branched alkyl phthalates; Diisodecyl Phthalate; Di(C9-C11) branched alkyl phthalate; Phthalic acid, di-C9-11-branched alkyl esters, C10-rich; [ChemIDplus] DIDP; [NTP - CERHR] Diisodecyl phthalate (mixed isomers); [EPA ChAMP: Screening Level Hazard Characterization: Phthalate Esters Category - 2010] JAYFLEX DIDP; [ExxonMobil MSDS]

Category

Phthalate Esters

Description

Oily viscous liquid; [NTP - CERHR] Clear colorless liquid with a mild odor; [ExxonMobil MSDS]

Sources/Uses

Used as a plasticizer in a variety of PVC based products; [NTP - CERHR] Used mainly as a plasticizer for PVC plastics (95%); Also used in rubber products, anti-corrosion and anti-fouling paints, sealing compounds, and textile inks; [ExPub: Cal/EPA: OEHHA] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Comments

Diisodecyl phthalate (DIDP) is assigned two CAS numbers: 26761-40-0 and 68515-49-1; The commercial product is a complex, but not variable, substance; The liver was shown to be the target organ of toxicity in oral studies of rats and dogs; Developmental toxicity and teratogenicity observed in rats (at doses below those maternally toxic in some studies); No reproductive toxicity observed in rats; [NTP - CERHR] Primary carbon length backbone of C10; No fetal toxicity observed in rats at doses up to 1,000 mg/kg/day; Members (and supporting chemicals) of the high molecular weight phthalate esters demonstrated no skin or eye irritation in rabbits and low acute toxicity by oral, inhalation, and dermal routes; May cause histopathological changes to liver and adverse reproductive effects; [EPA ChAMP: Screening Level Hazard Characterization: Phthalate Esters Category - 2010] May cause irritation from excessive exposure; [ExxonMobil MSDS] See "Diisodecyl phthalate" and "PHTHALATE ESTERS."

Biomedical References

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Processes

Industrial Processes with risk of exposure:

• Painting (Pigments, Binders, and Biocides)
• Textiles (Printing, Dyeing, or Finishing)