Reference Source

Coumaphos

For Coumaphos, cas no. is 56-72-4; cercla rq (lbs) is 10; regulatory categories is 1, verified against its source on 2026-08-05.

Substance
Coumaphos
CAS No.
56-72-4
CERCLA RQ (lbs)
10
Regulatory categories
1
EPCRA TPQ (lbs)
100/10,000 per ecfr.gov
EPCRA RQ (lbs)
10 per ecfr.gov
Sourceecfr.gov
Verified2026-08-05
Review by2027-08-05
DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)

What the source says

Coumaphos | 56-72-4 | 1 | | 10 (4.54)

— ecfr.gov, retrieved 2026-08-05

What ecfr.gov says

56-72-4 | Coumaphos | | 10 | 100/10,000 |

— ecfr.gov, retrieved 2026-08-05

Sources

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