Reference Source

Parathion

For Parathion, cas no. is 56-38-2; cercla rq (lbs) is 10; rcra waste number is P089; regulatory categories is 1,3,4, verified against its source on 2026-09-16.

Substance
Parathion verified
CAS No.
56-38-2 verified
CERCLA RQ (lbs)
10 verified
RCRA waste number
P089 verified
Regulatory categories
1,3,4 verified
EPCRA TPQ (lbs)
100 per ecfr.gov
EPCRA RQ (lbs)
10 per ecfr.gov
Sourceecfr.gov
Verified
Review by
DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA and EPCRA)

What the source says

Parathion | 56-38-2 | 1,3,4 | P089 | 10 (4.54)

ecfr.gov, retrieved 2026-08-05

What ecfr.gov says

56-38-2 | Parathion | b | 10 | 100 |

ecfr.gov, retrieved 2026-08-05

Sources

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