# 4,6-Dinitro-o-cresol — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For 4,6-Dinitro-o-cresol, cas no. is 534-52-1; cercla rq (lbs) is 10; rcra waste number is P047; regulatory categories is 2,3,4, verified against its source on 2026-08-05. - **Substance:** 4,6-Dinitro-o-cresol _(verified: appears in the quote below)_ - **CAS No.:** 534-52-1 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 10 _(verified: appears in the quote below)_ - **RCRA waste number:** P047 _(verified: appears in the quote below)_ - **Regulatory categories:** 2,3,4 _(verified: appears in the quote below)_ ## What the source says > 4,6-Dinitro-o-cresol | 534-52-1 | 2,3,4 | P047 | 10 (4.54) ## 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/).