Diphenyl-p-phenylenediamine (CAS 74-31-7) — formula C18H16N2, molecular weight 260.3; category organic chemicals.
| CAS Number | 74-31-7 |
|---|---|
| Molecular Formula | C18H16N2 |
| Molecular Weight | 260.3 |
| Melting Point | 293 to 306 °F (NTP, 1992) |
| Boiling Point | 428 to 437 °F at 0.5 mmHg (NTP, 1992) |
| LogP | 5 |
| Applications | Uses: Used as antioxidant (rubber, polyethylene, feedstuffs, petroleum, vegetable oils, animal fats, and oils), polymerization inhibitor, copper degradation inhibitor, and as an intermediate (dyes, drugs, plastics, and detergents), [HSDB], Petroleum Production and Refining [Category: Industry], ANTIOXIDANT FOR RUBBER, POLYETHYLENE, FEEDSTUFFS, PETROLEUM, VEGETABLE OILS, ANIMAL FATS & OILS, POLYMERIZATION INHIBITOR, Polymerization inhibitor, antioxidant for rubber, petr oils, feedstuffs., THERAP CAT (VET): Antioxidant for feedstuffs, Flex-resistant antioxidant in rubbers, stabilizer, retards copper degradation, intermediate for dyes, plastics and detergents., Industry Uses: Other, Chemical reaction regulator, Consumer Uses: Lubricating agent, Methods of Manufacturing: Prepd by condensing hydroquinone or p-aminophenol with aniline: Calm, Ber 16, 2805 (1883), Clemens, Magoffin, US patent 2, 503, 712 (1950 to Kodak). Purification: Pecherer, 833, 824 (1958 to Hoffmann-La Roche)., ... from hydroquinone and aniline, acid cat., Formulations, Preparations: Purity: 9.2% (min), Flexamine G, is, trademark for mixt of N, N'-diphenyl-para-phenylenediamine and complex diarylamine-ketone reaction product. Uses: antioxidant used in tires, camelback, wire insulation, neoprene belting and soles., U.S. Production: 2023: <75, 000 lb, 2022: 500, 000 - <1, 000, 2021: 500, 2020: 500, (1972) 8.13X10+8 GRAMS, (1975) 4.85X10+8 GRAMS, General Manufacturing Information: Plastics Material and Resin Manufacturing, Petroleum Lubricating Oil and Grease Manufacturing, Synthetic Rubber Manufacturing, 1, 4-Benzenediamine, N1, N4-diphenyl-: ACTIVE, ...ITS DISTRIBUTION WAS...STOPPED IN 1956 BY US FDA., IN ORDER TO PREVENT OXIDATION OF VITAMIN E & TO STABILIZE VITAMIN A & CAROTENE IN MIXED ANIMAL FEEDS IT..., BECAME, COMMERCIAL PRACTICE TO ADD ANTIOXIDANTS. PROBABLY MOST WIDELY USED COMPD WAS DPPD...WHICH WAS USUALLY ADDED TO POULTRY FEEDS IN CONCN OF 0.025%. |
| Category | Organic Chemicals |
Documented applications: Uses: Used as antioxidant (rubber, polyethylene, feedstuffs, petroleum, vegetable oils, animal fats, and oils), polymerization inhibitor, copper degradation inhibitor, and as an intermediate (dyes, drugs, plastics, and detergents), [HSDB], Petroleum Production and Refining [Category: Industry], ANTIOXIDANT FOR RUBBER, POLYETHYLENE, FEEDSTUFFS, PETROLEUM, VEGETABLE OILS, ANIMAL FATS & OILS, POLYMERIZATION INHIBITOR, Polymerization inhibitor, antioxidant for rubber, petr oils, feedstuffs., THERAP CAT (VET): Antioxidant for feedstuffs, Flex-resistant antioxidant in rubbers, stabilizer, retards copper degradation, intermediate for dyes, plastics and detergents., Industry Uses: Other, Chemical reaction regulator, Consumer Uses: Lubricating agent, Methods of Manufacturing: Prepd by condensing hydroquinone or p-aminophenol with aniline: Calm, Ber 16, 2805 (1883), Clemens, Magoffin, US patent 2, 503, 712 (1950 to Kodak). Purification: Pecherer, 833, 824 (1958 to Hoffmann-La Roche)., ... from hydroquinone and aniline, acid cat., Formulations, Preparations: Purity: 9.2% (min), Flexamine G, is, trademark for mixt of N, N'-diphenyl-para-phenylenediamine and complex diarylamine-ketone reaction product. Uses: antioxidant used in tires, camelback, wire insulation, neoprene belting and soles., U.S. Production: 2023: <75, 000 lb, 2022: 500, 000 - <1, 000, 2021: 500, 2020: 500, (1972) 8.13X10+8 GRAMS, (1975) 4.85X10+8 GRAMS, General Manufacturing Information: Plastics Material and Resin Manufacturing, Petroleum Lubricating Oil and Grease Manufacturing, Synthetic Rubber Manufacturing, 1, 4-Benzenediamine, N1, N4-diphenyl-: ACTIVE, ...ITS DISTRIBUTION WAS...STOPPED IN 1956 BY US FDA., IN ORDER TO PREVENT OXIDATION OF VITAMIN E & TO STABILIZE VITAMIN A & CAROTENE IN MIXED ANIMAL FEEDS IT..., BECAME, COMMERCIAL PRACTICE TO ADD ANTIOXIDANTS. PROBABLY MOST WIDELY USED COMPD WAS DPPD...WHICH WAS USUALLY ADDED TO POULTRY FEEDS IN CONCN OF 0.025%..
Diphenyl-p-phenylenediamine is a carbon-based organic compound with CAS registry number 74-31-7 and molecular formula C18H16N2 (molecular weight 260.3), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 74-31-7
Its molecular formula C18H16N2 comprises 18 C, 16 H, 2 N atoms.
Also known as: Diphenyl-p-phenylenediamine · 二苯基对苯二胺
Category: organic chemicals
The CAS registry number of Diphenyl-p-phenylenediamine is 74-31-7.
Molecular formula C18H16N2, molecular weight 260.3.
It is also registered under: Diphenyl-p-phenylenediamine, 二苯基对苯二胺.
Recorded applications: Uses: Used as antioxidant (rubber, polyethylene, feedstuffs, petroleum, vegetable oils, animal fats, and oils), polymerization inhibitor, copper degradation inhibitor, and as an intermediate (dyes, drugs, plastics, and detergents), [HSDB], Petroleum Production and Refining [Category: Industry], ANTIOXIDANT FOR RUBBER, POLYETHYLENE, FEEDSTUFFS, PETROLEUM, VEGETABLE OILS, ANIMAL FATS & OILS, POLYMERIZATION INHIBITOR, Polymerization inhibitor, antioxidant for rubber, petr oils, feedstuffs., THERAP CAT (VET): Antioxidant for feedstuffs, Flex-resistant antioxidant in rubbers, stabilizer, retards copper degradation, intermediate for dyes, plastics and detergents., Industry Uses: Other, Chemical reaction regulator, Consumer Uses: Lubricating agent, Methods of Manufacturing: Prepd by condensing hydroquinone or p-aminophenol with aniline: Calm, Ber 16, 2805 (1883), Clemens, Magoffin, US patent 2, 503, 712 (1950 to Kodak). Purification: Pecherer, 833, 824 (1958 to Hoffmann-La Roche)., ... from hydroquinone and aniline, acid cat., Formulations, Preparations: Purity: 9.2% (min), Flexamine G, is, trademark for mixt of N, N'-diphenyl-para-phenylenediamine and complex diarylamine-ketone reaction product. Uses: antioxidant used in tires, camelback, wire insulation, neoprene belting and soles., U.S. Production: 2023: <75, 000 lb, 2022: 500, 000 - <1, 000, 2021: 500, 2020: 500, (1972) 8.13X10+8 GRAMS, (1975) 4.85X10+8 GRAMS, General Manufacturing Information: Plastics Material and Resin Manufacturing, Petroleum Lubricating Oil and Grease Manufacturing, Synthetic Rubber Manufacturing, 1, 4-Benzenediamine, N1, N4-diphenyl-: ACTIVE, ...ITS DISTRIBUTION WAS...STOPPED IN 1956 BY US FDA., IN ORDER TO PREVENT OXIDATION OF VITAMIN E & TO STABILIZE VITAMIN A & CAROTENE IN MIXED ANIMAL FEEDS IT..., BECAME, COMMERCIAL PRACTICE TO ADD ANTIOXIDANTS. PROBABLY MOST WIDELY USED COMPD WAS DPPD...WHICH WAS USUALLY ADDED TO POULTRY FEEDS IN CONCN OF 0.025%..
Category: Organic Chemicals.
Independent reference data for Diphenyl-p-phenylenediamine (CAS 74-31-7), compiled from public chemistry databases.
| CAS Registry Number | 74-31-7 |
|---|---|
| PubChem CID | 6319 |
| Molecular formula | C18H16N2 |
| IUPAC name | 1-N,4-N-diphenylbenzene-1,4-diamine |
| UNII (FDA) | DD517SCM92 |
| Molecular Weight | 260.3 |
|---|---|
| XLogP3 | 5 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 4 |
| Exact Mass | 260.131348519 |
| Monoisotopic Mass | 260.131348519 |
| Topological Polar Surface Area | 24.1 |
| Heavy Atom Count | 20 |
| Boiling Point | 428 to 437 °F at 0.5 mmHg (NTP, 1992) |
|---|---|
| Boiling Point | 220-225 °C @ 0.5 mm Hg |
| Melting Point | 293 to 306 °F (NTP, 1992) |
| Melting Point | 150-151 °C |
| Flash Point | 400 °F (NTP, 1992) |
| Flash Point | 232 °C c.c. |
| Density | 1.20 |
| Vapor Density | 9.0 (Air= 1) |
| Vapor Pressure | 0.00000001 [mmHg] |
| Vapor Pressure | 6.35X10-9 mm Hg @ 25 °C |
74-31-7; N,N'-Diphenyl-p-phenylenediamine; N,N'-Diphenyl-1,4-phenylenediamine; DPPD; Diphenyl-p-phenylenediamine; AgeRite DPPD; 1,4-Dianilinobenzene; Flexamine G; Nonflex H; Diafen FF; Nonox DPPD; Antioxidant H; DFFD; Stabilizer DPPD; Altofane DIP; 1,4-Bis(phenylamino)benzene
| Regulatory & Food Contact | FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS |
|---|
| Reported hazard statements | H317, H412, H341 (42.3%), H361 (42.3%), H400 (42.3%), H410 (21.4%) |
|---|
H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
Diphenyl-p-phenylenediamine · CAS 74-31-7 · C18H16N2. UNII DD517SCM92. Boiling Point: 428 to 437 °F at 0.5 mmHg (NTP, 1992); Boiling Point: 220-225 °C @ 0.5 mm Hg; Melting Point: 293 to 306 °F (NTP, 1992).
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 二苯基对苯二胺