Agent Name

Decamethylcyclopentasiloxane

CAS Number

541-02-6

Formula

C10-H30-O5-Si5

Major Category

Metals

Synonyms

Cyclic dimethylsiloxane pentamer; Cyclopentasiloxane, decamethyl-; Dekamethylcyklopentasiloxan [Czech]; Dimethylsiloxane pentamer; Dow Corning 345; Dow Corning 345 Fluid; KF 995; NUC Silicone VS 7158; Polydimethylsiloxane; SF 1202; Silicon SF 1202; Union Carbide 7158 Silicone Fluid; VS 7158; [ChemIDplus]

Category

Metalloid Compounds (Silicon)

Description

Colorless volatile liquid; [Merck Index]

Sources/Uses

Used as a carrier in personal care products, as a dry cleaning solvent, and to make siloxane polymers; [Merck Index]

Comments

Silicones cause foreign body reactions when injected or implanted in tissue; [HSDB] May cause irritation; [MSDSonline] See "Octamethylcyclotetrasiloxane."

Exposure Assessment
WEEL

10 ppm

Vapor Pressure

0.2 mm Hg

Lethal Concentration

LC (rat) > 2,700 mg/m3/4h

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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Processes

Industrial Processes with risk of exposure: