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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).
| 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 |
| Formal Charge | 0 |
| 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 |
| 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]
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
CAS 74-31-7; molecular formula C18H16N2; molecular weight — g/mol.
74-31-7, N,N'-Diphenyl-p-phenylenediamine, N,N'-Diphenyl-1,4-phenylenediamine, DPPD, Diphenyl-p-phenylenediamine, AgeRite DPPD.
Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.
Hazard statements reported: H317, H412, H341, H361, H400.
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.
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.