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Free lookupCAS 100-42-5

Styrene

CAS 100-42-5 · PubChem CID 7501 · C8H8 · 104.15 g/mol

Also called STYRENE, Ethenylbenzene, Phenylethylene, Vinylbenzene, Styrol.

Generate this as your own safety data sheet — $5

Opens the builder with Styrene loaded
as component 1 at 100%.

01GHS classification
GHS pictogram: Flammable
Flammable
GHS pictogram: Irritant
Irritant
GHS pictogram: Health Hazard
Health Hazard

Precautionary statement codes

P203, P210, P233, P240, P241, P242, P243, P260, P261, P264, P264+P265, P270, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P317, P318, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P235, P405, and P501

Regulation (EC) No 1272/2008 of the European Parliament and of the Councilfetched 2026-08-28

H226Flammable liquid and vapor
H319Causes serious eye irritation
H361dSuspected of damaging the unborn child
H372Causes damage to organs through prolonged or repeated exposure
02Physical and chemical properties
Appearance

Colourless-to-yellow oily liquid.

ILO-WHO International Chemical Safety Cards (ICSCs)fetched 2026-08-28

Odour

no value printed

unsourced — inference candidate

Melting point

no value printed

unsourced — inference candidate

Boiling point

no value printed

unsourced — inference candidate

Flash point

no value printed

unsourced — inference candidate

Auto-ignition temperature

no value printed

unsourced — inference candidate

Flammable limits

no value printed

unsourced — inference candidate

Vapour pressure

no value printed

unsourced — inference candidate

Relative density

no value printed

unsourced — inference candidate

Solubility in water

no value printed

unsourced — inference candidate

Partition coefficient, log Kow

no value printed

unsourced — inference candidate

Viscosity

no value printed

unsourced — inference candidate

03Toxicological information

No published acute toxicity value was found for this substance in the sources we read. On a document, Section 11 would print unsourced — inference candidate rather than an estimate.

This page is the evidence. The document is the deliverable.

Everything above is free and stays free. For $5 the same sourced values are assembled into a 16-section safety data sheet and a print-ready GHS label carrying your company details in Section 1.

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What we read

Regulation (EC) No 1272/2008 of the European Parliament and of the Council, ILO-WHO International Chemical Safety Cards (ICSCs), Hazardous Substances Data Bank (HSDB).

15 sourced records for this substance are in the ledger. Values dated more than 30 days ago are re-fetched on the next document.