40 CFR § 721.10488 - Cuprate, [[[[[[[(sulfonaphthalenyl)]azo]- (substitutedphenyl)]azo]- (substitutedsulfonaphthalenyl)] azo]-substituted phenyl-substituted heteromonocycle], sodium salts (generic).

---
identifier: "/us/cfr/t40/s721.10488"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 721.10488 - Cuprate, [[[[[[[(sulfonaphthalenyl)]azo]- (substitutedphenyl)]azo]- (substitutedsulfonaphthalenyl)] azo]-substituted phenyl-substituted heteromonocycle], sodium salts (generic)."
title_number: 40
title_name: "Protection of Environment"
section_number: "721.10488"
section_name: "Cuprate, [[[[[[[(sulfonaphthalenyl)]azo]- (substitutedphenyl)]azo]- (substitutedsulfonaphthalenyl)] azo]-substituted phenyl-substituted heteromonocycle], sodium salts (generic)."
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: "2026-04-05"
last_updated: "2026-04-05"
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"
---


# 721.10488 Cuprate, [[[[[[[(sulfonaphthalenyl)]azo]- (substitutedphenyl)]azo]- (substitutedsulfonaphthalenyl)] azo]-substituted phenyl-substituted heteromonocycle], sodium salts (generic).

(a) *Chemical substance and significant new uses subject to reporting.* (1) The chemical substance identified generically as cuprate, [[[[[[[(sulfonaphthalenyl)] azo]- (substitutedphenyl)]azo]- (substitutedsulfonaphthalenyl)]azo]-substituted phenyl-substituted heteromonocycle], sodium salts (PMN P-04-636) 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)(4) (National Institute for Occupational Safety and Health (NIOSH)-certified respirator with an assigned protection factor (APF) of at least 5), (a)(6)(i), (a)(6)(ii), (a)(6)(v), (a)(6)(vi), (b) (concentration set at 0.1 percent), and (c).

(ii) [Reserved]

(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) through (e) 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.

[77 FR 58700, Sept. 21, 2012]