Reference Source

1,2-Diphenylhydrazine

For 1,2-Diphenylhydrazine, cas no. is 122-66-7; cercla rq (lbs) is 10; rcra waste number is U109; regulatory categories is 2,3,4, verified against its source on 2026-08-05.

Substance
1,2-Diphenylhydrazine verified
CAS No.
122-66-7 verified
CERCLA RQ (lbs)
10 verified
RCRA waste number
U109 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

1,2-Diphenylhydrazine | 122-66-7 | 2,3,4 | U109 | 10 (4.54)

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.