Reference Source

Benzidine

For Benzidine, cas no. is 92-87-5; cercla rq (lbs) is 1; rcra waste number is U021; regulatory categories is 2,3,4, verified against its source on 2026-08-05.

Substance
Benzidine verified
CAS No.
92-87-5 verified
CERCLA RQ (lbs)
1 verified
RCRA waste number
U021 verified
Regulatory categories
2,3,4 verified
Sourceecfr.gov
Verified2026-08-05
Review by2027-08-05
DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)

What the source says

Benzidine | 92-87-5 | 2,3,4 | U021 | 1 (0.454)

ecfr.gov, retrieved 2026-08-05

Source

Last verified against source: 2026-08-05. Due for re-check by 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.