# Ethanone, 1-phenyl- — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Ethanone, 1-phenyl-, cas no. is 98-86-2; cercla rq (lbs) is 5000; rcra waste number is U004; regulatory categories is 3,4, verified against its source on 2026-08-05. - **Substance:** Ethanone, 1-phenyl- _(verified: appears in the quote below)_ - **CAS No.:** 98-86-2 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 5000 _(verified: appears in the quote below)_ - **RCRA waste number:** U004 _(verified: appears in the quote below)_ - **Regulatory categories:** 3,4 _(verified: appears in the quote below)_ ## What the source says > Ethanone, 1-phenyl- | 98-86-2 | 3,4 | U004 | 5000 (2270) ## Source - https://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-302/section-302.4 Last verified: 2026-08-05. Review by: 2027-08-05. Part of [US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)](https://referencesource.org/chemical-regulatory-reporting-thresholds/).