40 CFR § 721.11495 - Octadecanoic acid, 9(or 10)-(dibutoxyphosphinyl)-, 1,1'-(2,2-dimethyl-1,3-propanediyl) ester.

---
identifier: "/us/cfr/t40/s721.11495"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 721.11495 - Octadecanoic acid, 9(or 10)-(dibutoxyphosphinyl)-, 1,1'-(2,2-dimethyl-1,3-propanediyl) ester."
title_number: 40
title_name: "Protection of Environment"
section_number: "721.11495"
section_name: "Octadecanoic acid, 9(or 10)-(dibutoxyphosphinyl)-, 1,1'-(2,2-dimethyl-1,3-propanediyl) ester."
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"
---


# 721.11495 Octadecanoic acid, 9(or 10)-(dibutoxyphosphinyl)-, 1,1'-(2,2-dimethyl-1,3-propanediyl) ester.

(a) *Chemical substance and significant new uses subject to reporting.* (1) The chemical substance identified as octadecanoic acid, 9(or 10)-(dibutoxyphosphinyl)-, 1,1'-(2,2-dimethyl-1,3-propanediyl) ester (PMN P-19-174, CAS No. 2346600-12-0) 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.* It is a significant new use to manufacture, process, or use the PMN substance in a manner that results in inhalation exposure. It is a significant new use to process the PMN substance above the confidential percentage in formulation specified in the PMN for use in consumer products.

(ii) [Reserved]

(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 (c), and (i) are applicable to manufacturers and processors of this substance.

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

(3) *Determining whether a specific use is subject to this section.* The provisions of § 721.1725(b)(1) apply to paragraph (a)(2)(i) of this section.

[86 FR 30194, June 7, 2021]