# 2-Butanone, 3,3-dimethyl-1(methylthio)-, O-[(methylamino)carbonyl] oxime — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For 2-Butanone, 3,3-dimethyl-1(methylthio)-, O-[(methylamino)carbonyl] oxime, cas no. is 39196-18-4; cercla rq (lbs) is 100; rcra waste number is P045; regulatory categories is 4, verified against its source on 2026-08-05. - **Substance:** 2-Butanone, 3,3-dimethyl-1(methylthio)-, O-[(methylamino)carbonyl] oxime _(verified: appears in the quote below)_ - **CAS No.:** 39196-18-4 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 100 _(verified: appears in the quote below)_ - **RCRA waste number:** P045 _(verified: appears in the quote below)_ - **Regulatory categories:** 4 _(verified: appears in the quote below)_ ## What the source says > 2-Butanone, 3,3-dimethyl-1(methylthio)-, O-[(methylamino)carbonyl] oxime | 39196-18-4 | 4 | P045 | 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/).