# Phenylsilatrane — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Phenylsilatrane, cas no. is 2097-19-0; epcra tpq (lbs) is 100/10,000; epcra rq (lbs) is 100, verified against its source on 2026-08-05. - **Substance:** Phenylsilatrane _(verified: appears in the quote below)_ - **CAS No.:** 2097-19-0 _(verified: appears in the quote below)_ - **EPCRA TPQ (lbs):** 100/10,000 _(verified: appears in the quote below)_ - **EPCRA RQ (lbs):** 100 _(verified: appears in the quote below)_ ## What the source says > 2097-19-0 | Phenylsilatrane | d | 100 | 100/10,000 | ## 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/).