Reference Source

3,3′-Dichlorobenzidine

For 3,3′-Dichlorobenzidine, cas no. is 91-94-1; cercla rq (lbs) is 1; rcra waste number is U073; regulatory categories is 2,3,4, verified against its source on 2026-08-05.

Substance
3,3′-Dichlorobenzidine verified
CAS No.
91-94-1 verified
CERCLA RQ (lbs)
1 verified
RCRA waste number
U073 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

3,3′-Dichlorobenzidine | 91-94-1 | 2,3,4 | U073 | 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.