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Registry of Toxic Effects of Chemical Substances (RTECS)

Styrene, m-methyl-

RTECS #

WL5075800

CAS #

100-80-1

Updated

July 2013

Molecular Weight

118.19

Molecular Formula

C9H10

Synonyms

1-Ethenyl-3-methylbenzene
1-Methyl-3-vinylbenzene
3-Methylstyrene
3-Vinyltoluene
Benzene, 1-ethenyl-3-methyl- (9CI)
m-Methylstyrene
m-Vinyltoluene

Mutation Data and Reference

System TestRoute/Organism/TissueDoseReference
sister chromatid exchangelymphocyte/human1 mmol/LMUREAV 116,379,1983

Reviews

OrganizationStandardReference
International Agency for Research on Cancer (IARC)Cancer Review:Human Inadequate EvidenceIMEMDT 60,373,1994
International Agency for Research on Cancer (IARC)Cancer Review:Animal Sufficient EvidenceIMEMDT 60,373,1994
International Agency for Research on Cancer (IARC)Cancer Review:Group 3IMEMDT 60,373,1994

Standards and Regulations

OrganizationStandardReference
Occupational Exposure Limit-BELGIUMtime-weighted average 50 ppm (246 mg/m3), short term exposure limit 100 ppm(490 mg/m3), MAR2002
Occupational Exposure Limit-DENMARKtime-weighted average 25 ppm (120 mg/m3), skin, MAY2011
Occupational Exposure Limit-ICELANDtime-weighted average 25 ppm (120 mg/m3), skin, NOV2011
Occupational Exposure Limit-MEXICOtime-weighted average 50 ppm (240 mg/m3);short term exposure limit 100 ppm (485 mg/m3), 2004
Occupational Exposure Limit-SWITZERLANDMAK-week 50 ppm (240 mg/m3), KZG-week 100 ppm (480 mg/m3), JAN2011

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001
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