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Styrene

CAS 100-42-5 · C8H8

Hazard class

Danger — Flammable, Health hazard, Irritant / harmful

Pictograms

FlammableHealth hazardIrritant / harmful

H-statements

H226 Flammable liquid and vapour
H361d Suspected of damaging the unborn child
H332 Harmful if inhaled
H372 Causes damage to organs through prolonged or repeated exposure
H315 Causes skin irritation
H319 Causes serious eye irritation

Common uses (US EPA CDR)

MonomersIntermediateSolventFuel agentsAntioxidantPlasticizer

Workplace exposure limits

NIOSH REL TWA 50 ppm (215 mg/m3) ST 100 ppm (425 mg/m3)
OSHA PEL TWA 100 ppm C 200 ppm 600 ppm (5-minute maximum peak in any 3 hours)
IDLH 700 ppm

Occupational exposure limits — NIOSH Pocket Guide.

Synonyms

STYRENE · 100-42-5 · Ethenylbenzene · Phenylethylene · Vinylbenzene · Styrol · Benzene, ethenyl- · Cinnamene

Molecular weight

104.15 g/mol

Data source

Harmonised classification ECHA — EU CLP Annex VI

Legally binding EU classification adopted by ECHA under CLP Annex VI — the highest-confidence GHS source.

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GHS/CLP classification from authoritative registries (ECHA Annex VI, PubChem). SNRL is a free chemical safety search. Browse categories · API · Console

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