40 CFR § 721.10088 - Thiophene, 2,5-dibromo-3-hexyl-.

---
identifier: "/us/cfr/t40/s721.10088"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 721.10088 - Thiophene, 2,5-dibromo-3-hexyl-."
title_number: 40
title_name: "Protection of Environment"
section_number: "721.10088"
section_name: "Thiophene, 2,5-dibromo-3-hexyl-."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "R"
subchapter_name: "TOXIC SUBSTANCES CONTROL ACT"
part_number: "721"
part_name: "SIGNIFICANT NEW USES OF CHEMICAL SUBSTANCES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "15 U.S.C. 2604, 2607, and 2625(c)."
regulatory_source: "49 FR 35018, Sept. 5, 1984, unless otherwise noted."
cfr_part: "721"
---


# 721.10088 Thiophene, 2,5-dibromo-3-hexyl-.

(a) *Chemical substance and significant new uses subject to reporting.* (1) The chemical substance identified as thiophene, 2,5-dibromo-3-hexyl- (PMN P-07-283; CAS No. 116971-11-0) is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section.

(2) The significant new uses are:

(i) *Industrial, commercial, and consumer activities.* Requirements as specified in § 721.80(s) (4,500 kilograms).

(ii) *Release to water.* Requirements as specified in § 721.90 (a)(4), (b)(4), and (c)(4) (N = 1).

(b) *Specific requirements.* The provisions of subpart A of this part apply to this section except as modified by this paragraph.

(1) *Recordkeeping.* Recordkeeping requirements as specified in § 721.125 (a), (b), (c), (i), and (k) are applicable to manufacturers, importers, and processors of this substance.

(2) *Limitations or revocation of certain notification requirements.* The provisions of § 721.185 apply to this section.

[74 FR 32465, July 8, 2009]