# Acetone Thiosemicarbazide — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Acetone Thiosemicarbazide, cas no. is 1752-30-3; epcra tpq (lbs) is 1,000/10,000; epcra rq (lbs) is 1,000, verified against its source on 2026-08-05. - **Substance:** Acetone Thiosemicarbazide _(verified: appears in the quote below)_ - **CAS No.:** 1752-30-3 _(verified: appears in the quote below)_ - **EPCRA TPQ (lbs):** 1,000/10,000 _(verified: appears in the quote below)_ - **EPCRA RQ (lbs):** 1,000 _(verified: appears in the quote below)_ ## What the source says > 1,000 | 1752-30-3 | Acetone Thiosemicarbazide | | 1,000 | 1,000/10,000 | ## Source - https://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-355 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/).