4,4'-Dimethyltriphenylamine
Also known as: 4,4'-Dimethyltriphenylamine, 4,4'-Dimethyl Triphenylamine, N,N-Di-p-tolylaniline, Phenyl(di-p-tolyl)amine, Bis(4-Methylphenyl)phenylamine, Benzenamine, 4-methyl-N-(4-methylphenyl)-N-phenyl-, 4-methyl-N-(4-methylphenyl)-N-phenylaniline, 4-methyl-N-phenyl-N-(p-tolyl)aniline, EINECS 243-822-7, MFCD00145004
4,4'-Dimethyltriphenylamine (CAS 20440-95-3) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C20H19N and a molecular weight of 273.372 g/mol. Key properties include a melting point of 112°C, a boiling point of 417.5±34.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 183.5±22.5 °C. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 20440-95-3
- Jingsj CID
- J-38657-2
- Molecular Formula
- C20H19N
- Molecular Weight
- 273.372 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | 112°C |
|---|---|
| Boiling Point | 417.5±34.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 183.5±22.5 °C |
| Exact Mass | 273.151764 |
| PSA | 3.24000 |
| LogP | 6.66 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.627 |
Customs & Trade Information
| HS Code | 2921440000 |
|---|---|
| Summary | 2921440000. diphenylamine and its derivatives; salts thereof. VAT:17.0%. Tax rebate rate:17.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4,4'-Dimethyltriphenylamine?
The CAS number of 4,4'-Dimethyltriphenylamine is 20440-95-3.
What are the molecular formula and molecular weight of 4,4'-Dimethyltriphenylamine?
4,4'-Dimethyltriphenylamine has molecular formula C20H19N and molecular weight 273.372 g/mol.
Which suppliers offer 4,4'-Dimethyltriphenylamine?
1 supplier(s) listed; request a quote for pricing.
What are the upstream and downstream products of 4,4'-Dimethyltriphenylamine?
For 4,4'-Dimethyltriphenylamine, Upstream Products: Iodobenzene, Di-p-tolylamine, 4-Iodotoluene; Downstream Products: 4-[Bis(4-methylphenyl)amino]benzaldehyde, 4-Bromo-N,N-bis(4-methylphenyl)aniline, N,N,N',N'-Tetrakis(4-methylphenyl)-benzidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4,4'-Dimethyltriphenylamine (CAS 20440-95-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38657-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.