40 CFR § 721.825 - Certain aromatic ether diamines.

---
identifier: "/us/cfr/t40/s721.825"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 721.825 - Certain aromatic ether diamines."
title_number: 40
title_name: "Protection of Environment"
section_number: "721.825"
section_name: "Certain aromatic ether diamines."
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"
---


# 721.825 Certain aromatic ether diamines.

(a) *Chemical substances and significant new uses subject to reporting.* (1) The following chemical substances are subject to reporting under this section for the significant new uses described in paragraphs (a)(2), (a)(3), and (a)(4) of this section: Benzenamine, 4,4′-[[1,1′-biphenyl]-2,5-diylbis(oxy)]bis- (CAS Number 94148-67-1, Premanufacture notice (PMN) P-85-335); 1,2,4,5-benzenetetracarboxylic acid, diethyl ester, compound with 4,4′-[[1,1′-biphenyl]-2,5-diylbis(oxy)]bis[benzenamine] (1:1) (PMN P-85-336); and 1,2,4,5-benzenetetracarboxylic acid, 1,4-diethyl ester, compound with 4,4′-[[1,1′-biphenyl]-2,5-diylbis(oxy)]bis[benzenamine] (1:1), polymer with 4,4′-[[1,1′-biphenyl]-2,5-diylbis(oxy)]bis[benzenamine]-1,5-diethyl-1,2,4,5-benzenetetra carboxylate (1:1), reaction products with phthalic anhydride (PMN P-86-1153).

(2) The significant new use for P-85-335 is: Manufacture, import, or processing in a quantity of 100,000 pounds per year, or greater, for any use.

(3) The significant new use for P-85-336 is: Any use.

(4) The significant new use for P-86-1153 is: Manufacture, import, or processing in a quantity of 225,000 pounds per year, or greater, for any use.

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

(1) *Persons who must report.* Section 721.5 applies to this section except § 721.5(a)(2). A person who intends to manufacture, import, or process for commercial purposes a substance identified in paragraph (a)(3) of this section and intends to distribute the substance in commerce must submit a significant new use notice.

(2) [Reserved]

[59 FR 43296, Aug. 23, 1994]