Naphthalene

For Naphthalene, cas no. is 91-20-3; cercla rq (lbs) is 100; rcra waste number is U165; regulatory categories is 1,2,3,4, verified against its source on 2026-08-05.

Substance: Naphthalene
CAS No.: 91-20-3
CERCLA RQ (lbs): 100
RCRA waste number: U165
Regulatory categories: 1,2,3,4

Sourceecfr.gov

Verified2026-08-05

Review by2027-08-05

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

What the source says

Naphthalene | 91-20-3 | 1,2,3,4 | U165 | 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.