1-Methylbutadiene

For 1-Methylbutadiene, cas no. is 504-60-9; cercla rq (lbs) is 100; rcra waste number is U186; regulatory categories is 4, verified against its source on 2026-08-05.

Substance: 1-Methylbutadiene verified
CAS No.: 504-60-9 verified
CERCLA RQ (lbs): 100 verified
RCRA waste number: U186 verified
Regulatory categories: 4 verified

Sourceecfr.gov

Verified2026-08-05

Review by2027-08-05

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

What the source says

1-Methylbutadiene | 504-60-9 | 4 | U186 | 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: 2026-08-05. Due for re-check by 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.