§ 721.12139 — 2-Propenoic acid, 2-methyl-, butyl ester, polymer with 2-dodecylhexadecyl 2-methyl-2-propenoate, 2-oxepanone homopolymer, 2-[(2-methyl-1-oxo-2-propen-1-yl)oxy]ethyl ester, and 2-tetradecyloctadecyl 2-methyl-2-propenoate.

§ 721.12139 2-Propenoic acid, 2-methyl-, butyl ester, polymer with 2-dodecylhexadecyl 2-methyl-2-propenoate, 2-oxepanone homopolymer, 2-[(2-methyl-1-oxo-2-propen-1-yl)oxy]ethyl ester, and 2-tetradecyloctadecyl 2-methyl-2-propenoate.

(a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified as 2-propenoic acid, 2-methyl-, butyl ester, polymer with 2-dodecylhexadecyl 2-methyl-2-propenoate, 2-oxepanone homopolymer, 2-[(2-methyl-1-oxo-2-propen-1-yl)oxy]ethyl ester, and 2-tetradecyloctadecyl 2-methyl-2-propenoate (PMN P-24-18; CASRN 2854367-08-9) 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) and (3) and (c). When determining which persons are reasonably likely to be exposed as required for § 721.63(a)(1), engineering control measures (e.g., enclosure or confinement of the operation, general and local ventilation) or administrative control measures (e.g., workplace policies and procedures) shall be considered and implemented to prevent exposure, where feasible.

(ii) Hazard communication. Requirements as specified in § 721.72(a) through (d), (f), and (g)(1) and (5). For purposes of § 721.72(g)(1), this substance may cause: eye irritation and specific target organ toxicity. Alternative hazard and warning statements that meet the criteria of the Globally Harmonized System and OSHA Hazard Communication Standard may be used.

(iii) Industrial, commercial, and consumer activities. Requirements as specified in § 721.80(v)(1), (2), and (4), (w)(1), (2), and (4), and (x)(1), (2), and (4). It is a significant new use to manufacture, process, or use the substance in any manner that results in inhalation exposure to the substance. It is a significant new use to use the substance other than as an additive for lubricating oil.

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

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

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

[91 FR 30229, May 22, 2026]