N,N-Dimethyl-4-[(2-methylphenyl)diazenyl]aniline
2'-甲基-4-二甲氨基偶氮苯
Also known as: 4-(Dimethylamino)-2'-methylazobenzene, 2'-Methyl-4-(dimethylamino)azobenzene, N,N-Dimethyl-4-(o-tolylazo)aniline, 2-Methyl-4-dimethylaminoazobenzene, N,N-Dimethyl-4-[(2-methylphenyl)diazenyl]aniline
N,N-Dimethyl-4-[(2-methylphenyl)diazenyl]aniline (CAS 3731-39-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C15H17N3 and a molecular weight of 239.31600 g/mol. It is also known as 4-(Dimethylamino)-2'-methylazobenzene, 2'-Methyl-4-(dimethylamino)azobenzene and N,N-Dimethyl-4-(o-tolylazo)aniline. Key properties include a melting point of 74ºC, a boiling point of 390.9ºC at 760mmHg, a density of 1.01g/cm3 and a flash point of 190.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3731-39-3
- Jingsj CID
- J-38117-0
- Molecular Formula
- C15H17N3
- Chinese Name
- 2'-甲基-4-二甲氨基偶氮苯
- Molecular Weight
- 239.31600 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 74ºC |
|---|---|
| Boiling Point | 390.9ºC at 760mmHg |
| Density | 1.01g/cm3 |
| Flash Point | 190.2ºC |
Frequently Asked Questions
What is the CAS number of N,N-Dimethyl-4-[(2-methylphenyl)diazenyl]aniline?
The CAS number of N,N-Dimethyl-4-[(2-methylphenyl)diazenyl]aniline is 3731-39-3.
What are the molecular formula and molecular weight of N,N-Dimethyl-4-[(2-methylphenyl)diazenyl]aniline?
N,N-Dimethyl-4-[(2-methylphenyl)diazenyl]aniline has molecular formula C15H17N3 and molecular weight 239.31600 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "N,N-Dimethyl-4-[(2-methylphenyl)diazenyl]aniline (CAS 3731-39-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38117-0 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.