N,N'-Diphenyl-p-phenylenediamine
Synonyms: N,N'-Diphenyl-p-phenylenediamine, "N1,N4-Diphenylbenzene-1,4-diamine", "N,N'-Diphenyl-1,4-phenylenediamine", "DPPD", "Flexamine G", "AgeRite DPPD", "Diphenyl-p-phenylenediamine", "Stabilizer DPPD", "Nonflex H", "Altofane DIP", "1,4-Dianilinobenzene", "Diafen FF", "Nonox DPPD", "Permanax 18", "p-Phenylaminodiphenylamine", "Usaf gy-2", "4-Phenylaminodiphenylamine", "DFFD", "Antioxidant H", "Antigene P", "Naugard J", "Permanax DPPD", "Antage DP", "Ekaland DPPD", "1,4-Benzenediamine, N,N'-diphenyl-", "Nocrac DP", "1,4-Bis(phenylamino)benzene", "p-Bis(phenylamino)benzene"
Source: diphenyl-p-phenylenediamine is used as an antioxidant and/or stabilizer for rubber, petroleum oils and feedstuffs. It is also used as a polymerization inhibitor and a retardant against copper degradation. It is a chemical intermediate to make dyes, drugs, plastics and detergent additives.
Identifiers:
IUPAC Name: 1-N,4-N-diphenylbenzene-1,4-diamine
CAS Number: 74-31-7
PubChem ID: 6319
InChiKey: UTGQNNCQYDRXCH-UHFFFAOYSA-N
Canonical SMILES: C1=CC=C(C=C1)NC2=CC=C(C=C2)NC3=CC=CC=C3
Structural Properties:
Molecular Formula: C18H16N2
Molecular Weight: 260,300
Pharmacophore Features:
Number of bond donors: 2
Number of bond acceptors: 2
Number of atoms different from hydrogen: 20
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Evidence Supporting This Chemical as an Emerging Contaminant
Liu, R., Li, Y., Lin, Y., Ruan, T., & Jiang, G. (2019). Emerging aromatic secondary amine contaminants and related derivatives in various dust matrices in China. Ecotoxicology and environmental safety, 170, 657-663.