4,4'-Dimethyldiphenylamine
Synonyms: Di-Para-Tolylamine，Di-P-Tolylamine，P,P'-Ditolylamine
| Item | Details |
| CAS No. | 620-93-9 |
| Molecular Formula | C14H15N |
| Molecular Weight | 197.28 |
| Appearance | White to light yellow crystalline powder |
| Melting Point | 78～82℃ |
| Boiling Point | 330.5℃ (760mmHg) |
| Flash Point | 167.6℃ |
| Density | 1.05 g/cm3 |
| Solubility | Slightly soluble in methanol and chloroform; soluble in toluene and dichloromethane; insoluble in water |
| Stability | Stable at room temperature; prone to oxidation and yellowing when exposed to air and light; store in airtight and light-proof packaging |
| HS Code | 2921499090 (Other aromatic amines and their derivatives) |
| Packing | 25kg fiber drum lined with high-pressure PE inner bag |
| Storage Conditions | Store in cool and dry warehouse; seal with vacuum aluminum foil bag / high-pressure PE bag to isolate air, oxidants and strong light; keep away from heat and open flame |
| Personal Protection | Wear dust mask, nitrile rubber gloves and goggles; avoid inhalation of dust and prolonged skin contact |
| Waste Disposal | Dispose via incineration as organic hazardous waste; strictly prohibit direct discharge into sewers or natural water bodies |
| Application Fields | Primary use: anti-aging agent for rubber industry; high-temperature antioxidant for lubricating oil/grease; synthetic intermediate for optoelectronic materials; intermediate for dyes and fluorescent agents; redox titration reagent; raw material for pharmaceutical and catalytic ligands |
