# Benzene, 1-methyl-2,4-dinitro- — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Benzene, 1-methyl-2,4-dinitro-, cas no. is 121-14-2; cercla rq (lbs) is 10; rcra waste number is U105; regulatory categories is 1,2,3,4, verified against its source on 2026-08-05. - **Substance:** Benzene, 1-methyl-2,4-dinitro- _(verified: appears in the quote below)_ - **CAS No.:** 121-14-2 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 10 _(verified: appears in the quote below)_ - **RCRA waste number:** U105 _(verified: appears in the quote below)_ - **Regulatory categories:** 1,2,3,4 _(verified: appears in the quote below)_ ## What the source says > Benzene, 1-methyl-2,4-dinitro- | 121-14-2 | 1,2,3,4 | U105 | 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/).