40 CFR § 721.10005 - 2-Butenoic acid, 4,4′-[(dibutylstannylene)bis(oxy)]bis [4-oxo-, (2Z,2′Z)-, di-C-isoalkyl esters, C-rich.

---
identifier: "/us/cfr/t40/s721.10005"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 721.10005 - 2-Butenoic acid, 4,4′-[(dibutylstannylene)bis(oxy)]bis [4-oxo-, (2Z,2′Z)-, di-C-isoalkyl esters, C-rich."
title_number: 40
title_name: "Protection of Environment"
section_number: "721.10005"
section_name: "2-Butenoic acid, 4,4′-[(dibutylstannylene)bis(oxy)]bis [4-oxo-, (2Z,2′Z)-, di-C-isoalkyl esters, C-rich."
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"
---


# 721.10005 2-Butenoic acid, 4,4′-[(dibutylstannylene)bis(oxy)]bis [4-oxo-, (2Z,2′Z)-, di-C-isoalkyl esters, C-rich.

(a) *Chemical substance and significant new uses subject to reporting.* (1) The chemical substance identified as 2-butenoic acid, 4 ,4′-[(dibutylstannylene)bis(oxy)]bis [4-oxo-, (2Z,2′Z)-, di-C<sub>9-11</sub>-isoalkyl esters, C<sub>10</sub>-rich (PMN P-98-1182) 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) *Protection in the workplace.* Requirements as specified in § 721.63 (a)(1), (a)(2)(i), and (a)(3).

(ii) *Industrial, commercial, and consumer activities.* Requirements as specified in § 721.80 (v)(2), (w)(2), (x)(2), and (y)(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), (d), (e), and (i) 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.

[72 FR 14698, Mar. 29, 2007]