Styrene

For Styrene, cas no. is 100-42-5; cercla rq (lbs) is 1000; regulatory categories is 1,3, verified against its source on 2026-08-05.

What the source says

Styrene | 100-42-5 | 1,3 | | 1000 (454)

— ecfr.gov, retrieved 2026-08-05

Source

• ecfr.govhttps://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-302/section-302.4

Last verified against source: 2026-08-05. Due for re-check by 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.