Leptophos

For Leptophos, cas no. is 21609-90-5; epcra tpq (lbs) is 500/10,000; epcra rq (lbs) is 500, verified against its source on 2026-09-16.

Substance: Leptophos verified
CAS No.: 21609-90-5 verified
EPCRA TPQ (lbs): 500/10,000 verified
EPCRA RQ (lbs): 500 verified

Verified2026-09-16

Review by2027-08-05

DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA and EPCRA)

What the source says

21609-90-5 | Leptophos | | 500 | 500/10,000 |

— ecfr.gov, retrieved 2026-08-05

Source

ecfr.govhttps://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-355

Last verified against source: 2026-09-16. Due for re-check by 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.