---
kind: "section"
citation: "40 C.F.R. § 721.11380"
title: "40"
number: "721.11380"
heading: "Silsesquioxanes, 3-(dimethyloctadecylammonio) propyl Me Pr, polymers with silicic acid (H 4 SiO 4 ) tetra-Et ester, (2-hydroxyethoxy)- and methoxy-terminated, chlorides."
url: "https://uscodex.org/cfr/40/721.11380"
---

# §721.11380. Silsesquioxanes, 3-(dimethyloctadecylammonio) propyl Me Pr, polymers with silicic acid (H 4 SiO 4 ) tetra-Et ester, (2-hydroxyethoxy)- and methoxy-terminated, chlorides.

- (a) **Chemical substance and significant new uses subject to reporting.**
  - (1) The chemical substance identified as silsesquioxanes, 3-(dimethyloctadecylammonio) propyl Me Pr, polymers with silicic acid (H4SiO4) tetra-Et ester, (2-hydroxyethoxy)- and methoxy-terminated, chlorides. (P-19-24, CASRN 2231249-14-0) is subject to reporting under this section for the significant new uses described in [paragraph (a)(2)](#a-2) of this section.
  - (2) **The significant new uses are—**
    - (i) **Industrial, commercial, and consumer activities.** It is a significant new use to use the substance other than as an asphalt additive or asphalt emulsion additive. It is a significant new use to use the chemical substance as an asphalt additive in a manner that results in inhalation exposure to respirable particles or droplets containing the chemical substance.
    - (ii) **Release to water.** Requirements as specified in § [721.90(a)(4)](/cfr/40/721.90.md?p=a-4), [(b)(4)](/cfr/40/721.90.md?p=b-4), and [(c)(4)](/cfr/40/721.90.md?p=c-4) where N=8.
- (b) **Specific requirements.** The provisions of [subpart A](/cfr/40/subpartA.md) of this part apply to this section except as modified by this [paragraph (b)](#b).
  - (1) **Recordkeeping.** Recordkeeping requirements as specified in § [721.125(a) through (c)](/cfr/40/721.125.md?p=a..c), [(i)](/cfr/40/721.125.md?p=i), and [(k)](/cfr/40/721.125.md?p=k) are applicable to manufacturers and processors of this substance.
  - (2) **Limitations or revocation of certain notification requirements.** The provisions of [§ 721.185](/cfr/40/721.185.md) apply to this section.

## Notes

### Amendments

[85 FR 46555, Aug. 3, 2020, as amended at 85 FR 57757, Sept. 16, 2020]

### Authority

Authority: 15 U.S.C. 2604, 2607, and 2625(c).

### Source

Source: 49 FR 35018, Sept. 5, 1984, unless otherwise noted.

### Amendments

[85 FR 46555, Aug. 3, 2020, as amended at 85 FR 57757, Sept. 16, 2020]