Maleic anhydride

For Maleic anhydride, cas no. is 108-31-6; cercla rq (lbs) is 5000; rcra waste number is U147; regulatory categories is 1,3,4, verified against its source on 2026-08-05.

Substance: Maleic anhydride verified
CAS No.: 108-31-6 verified
CERCLA RQ (lbs): 5000 verified
RCRA waste number: U147 verified
Regulatory categories: 1,3,4 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

Maleic anhydride | 108-31-6 | 1,3,4 | U147 | 5000 (2270)

— 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.