Reference Source

Propylene oxide

For Propylene oxide, cas no. is 75-56-9; cercla rq (lbs) is 100; regulatory categories is 1,3, verified against its source on 2026-09-16.

Substance
Propylene oxide verified
CAS No.
75-56-9 verified
CERCLA RQ (lbs)
100 verified
Regulatory categories
1,3 verified
EPCRA TPQ (lbs)
10,000 per ecfr.gov
EPCRA RQ (lbs)
100 per ecfr.gov
Sourceecfr.gov
Verified
Review by
DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA and EPCRA)

What the source says

Propylene oxide | 75-56-9 | 1,3 | | 100 (45.4)

ecfr.gov, retrieved 2026-08-05

What ecfr.gov says

75-56-9 | Propylene Oxide | f | 100 | 10,000 |

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.