Chloroprene

For Chloroprene, cas no. is 126-99-8; cercla rq (lbs) is 100; regulatory categories is 3, verified against its source on 2026-09-16.

Substance: Chloroprene verified
CAS No.: 126-99-8 verified
CERCLA RQ (lbs): 100 verified
Regulatory categories: 3 verified

Verified2026-09-16

Review by2027-08-05

DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA and EPCRA)

What the source says

Chloroprene | 126-99-8 | 3 | | 100 (45.4)

— 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: 2026-09-16. Due for re-check by 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.