1,4-Dioxane

For 1,4-Dioxane, cas no. is 123-91-1; cercla rq (lbs) is 100; rcra waste number is U108; regulatory categories is 3,4, verified against its source on 2026-08-05.

Substance: 1,4-Dioxane
CAS No.: 123-91-1
CERCLA RQ (lbs): 100
RCRA waste number: U108
Regulatory categories: 3,4

Sourceecfr.gov

Verified2026-08-05

Review by2027-08-05

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

What the source says

1,4-Dioxane | 123-91-1 | 3,4 | U108 | 100 (45.4)

— ecfr.gov, retrieved 2026-08-05

Source

ecfr.govhttps://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-302/section-302.4

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.