# Phenol, 4-chloro-3-methyl- — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Phenol, 4-chloro-3-methyl-, cas no. is 59-50-7; cercla rq (lbs) is 5000; rcra waste number is U039; regulatory categories is 2,4, verified against its source on 2026-08-05. - **Substance:** Phenol, 4-chloro-3-methyl- _(verified: appears in the quote below)_ - **CAS No.:** 59-50-7 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 5000 _(verified: appears in the quote below)_ - **RCRA waste number:** U039 _(verified: appears in the quote below)_ - **Regulatory categories:** 2,4 _(verified: appears in the quote below)_ ## What the source says > Phenol, 4-chloro-3-methyl- | 59-50-7 | 2,4 | U039 | 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/).