# Phenol, 2,4-dichloro- — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Phenol, 2,4-dichloro-, cas no. is 120-83-2; cercla rq (lbs) is 100; rcra waste number is U081; regulatory categories is 2,4, verified against its source on 2026-08-05. - **Substance:** Phenol, 2,4-dichloro- _(verified: appears in the quote below)_ - **CAS No.:** 120-83-2 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 100 _(verified: appears in the quote below)_ - **RCRA waste number:** U081 _(verified: appears in the quote below)_ - **Regulatory categories:** 2,4 _(verified: appears in the quote below)_ ## What the source says > Phenol, 2,4-dichloro- | 120-83-2 | 2,4 | U081 | 100 (45.4) ## 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/).