Hexachlorocyclopentadiene

For Hexachlorocyclopentadiene, cas no. is 77-47-4; cercla rq (lbs) is 10; rcra waste number is U130; regulatory categories is 1,2,3,4, verified against its source on 2026-08-05.

Substance: Hexachlorocyclopentadiene
CAS No.: 77-47-4
CERCLA RQ (lbs): 10
RCRA waste number: U130
Regulatory categories: 1,2,3,4
EPCRA TPQ (lbs): 100 per ecfr.gov
EPCRA RQ (lbs): 10 per ecfr.gov

Sourceecfr.gov

Verified2026-08-05

Review by2027-08-05

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

What the source says

Hexachlorocyclopentadiene | 77-47-4 | 1,2,3,4 | U130 | 10 (4.54)

— ecfr.gov, retrieved 2026-08-05

What ecfr.gov says

500/10,000 | 77-47-4 | Hexachlorocyclopentadiene | d | 10 | 100 |

— ecfr.gov, retrieved 2026-08-05

Sources

ecfr.govhttps://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-302/section-302.4
ecfr.govhttps://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-355

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.