N , N ′ -diphenyl- p -phenylenediamine

Structural formula
General
Surname	N , N ′ -diphenyl- p -phenylenediamine
other names	N , N -diphenyl- p -phenylenediamine; N , N -diphenyl-1,4-phenylenediamine; DPPD; sym. diphenyl-1,4-phenylenediamine;
Molecular formula	C 18 H 16 N 2
Brief description	dark gray solid with a characteristic odor
External identifiers / databases
EC number	200-806-4
ECHA InfoCard	100,000,734
PubChem	6319
ChemSpider	6080
Wikidata	Q22829255
properties
Molar mass	260.34 g mol −1
Physical state	firmly
density	1.3 g cm −3
Melting point	143-145 ° C
boiling point	220–225 ° C (1.33 hPa)
solubility	practically insoluble in water; soluble in chlorobenzene , benzene , ether , chloroform , acetone , ethyl acetate , isopropyl acetate and dimethylformamide ;
safety instructions
GHS hazard labeling from Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary Caution
H and P phrases	H: 317-412
	P: 262-273-280-302 + 352
Toxicological data	2370 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

N , N ′ -Diphenyl- p -phenylenediamine is a chemical compound from the aminobenzenes group .

Extraction and presentation

N , N ′ -Diphenyl- p -phenylenediamine can be obtained by condensation of hydroquinone or p -aminophenol with aniline .

properties

N , N ′ -Diphenyl- p -phenylenediamine is a flammable, difficult to ignite, crystalline, dark gray solid with a characteristic odor, which is practically insoluble in water.

use

N , N ′ -Diphenyl- p -phenylenediamine is used as a polymerisation inhibitor , antioxidant for rubber , petroleum and animal feed. It is also used as an intermediate in the manufacture of dyes, drugs and detergents .

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Entry on N, N-diphenyl-p-phenylenediamine in the GESTIS substance database of the IFA , accessed on December 30, 2019(JavaScript required) .
↑ ^a ^b BG Chemie: Toxicological evaluation of N, N'-diphenyl-p-phenylenediamine
↑ Entry on N, N'-diphenyl-p-phenylenediamine Template: link text check / apostrophe in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 30, 2019. Manufacturers or distributors can expand the harmonized classification and labeling .
↑ ^a ^b Entry on P-PHENYLENEDIAMINE, N, N'-DIPHENYL- Template: link text check / apostrophe in the Hazardous Substances Data Bank , accessed on November 3, 2018.

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Entry on N, N-diphenyl-p-phenylenediamine in the GESTIS substance database of the IFA , accessed on December 30, 2019(JavaScript required) .

[BG_Chemie-2] BG Chemie: Toxicological evaluation of N, N'-diphenyl-p-phenylenediamine

[CLP_100.000.734-3] Entry on N, N'-diphenyl-p-phenylenediamine Template: link text check / apostrophe in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 30, 2019. Manufacturers or distributors can expand the harmonized classification and labeling .

[HSDB-4] Entry on P-PHENYLENEDIAMINE, N, N'-DIPHENYL- Template: link text check / apostrophe in the Hazardous Substances Data Bank , accessed on November 3, 2018.