# Triethylamine — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Triethylamine, cas no. is 121-44-8; cercla rq (lbs) is 5000; rcra waste number is U404; regulatory categories is 1,3,4, verified against its source on 2026-08-05. - **Substance:** Triethylamine _(verified: appears in the quote below)_ - **CAS No.:** 121-44-8 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 5000 _(verified: appears in the quote below)_ - **RCRA waste number:** U404 _(verified: appears in the quote below)_ - **Regulatory categories:** 1,3,4 _(verified: appears in the quote below)_ ## What the source says > Triethylamine | 121-44-8 | 1,3,4 | U404 | 5000 (2270) ## 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/).