# Phenol, 4-nitro- — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Phenol, 4-nitro-, cas no. is 100-02-7; cercla rq (lbs) is 100; rcra waste number is U170; regulatory categories is 1,2,3,4, verified against its source on 2026-08-05. - **Substance:** Phenol, 4-nitro- _(verified: appears in the quote below)_ - **CAS No.:** 100-02-7 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 100 _(verified: appears in the quote below)_ - **RCRA waste number:** U170 _(verified: appears in the quote below)_ - **Regulatory categories:** 1,2,3,4 _(verified: appears in the quote below)_ ## What the source says > Phenol, 4-nitro- | 100-02-7 | 1,2,3,4 | U170 | 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/).