# Pyrrolidine, 1-nitroso- — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)

For Pyrrolidine, 1-nitroso-, cas no. is 930-55-2; cercla rq (lbs) is 1; rcra waste number is U180; regulatory categories is 4, verified against its source on 2026-08-05.

- **Substance:** Pyrrolidine, 1-nitroso- _(verified: appears in the quote below)_
- **CAS No.:** 930-55-2 _(verified: appears in the quote below)_
- **CERCLA RQ (lbs):** 1 _(verified: appears in the quote below)_
- **RCRA waste number:** U180 _(verified: appears in the quote below)_
- **Regulatory categories:** 4 _(verified: appears in the quote below)_

## What the source says

> Pyrrolidine, 1-nitroso- | 930-55-2 | 4 | U180 | 1 (0.454)

## 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/).