4-(Methylamino)azobenzene
Also known as: N-Methyl-4-aminoazobenzene, N-Methyl-p-aminoazobenzene, N-Methyl-4-(phenyldiazenyl)aniline, N-Methyl-4-phenylazoaniline, N-methyl-4-phenyldiazenylaniline, Methylaminoazobenzene, p-Monomethylaminoazobenzene, 4-Methylaminoazobenzene, 4-(Methylamino)azobenzene (preferred), Benzenamine, N-methyl-4-(2-phenyldiazenyl)-, MAB
4-(Methylamino)azobenzene (CAS 621-90-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H13N3 and a molecular weight of 211.26200 g/mol. Key properties include a melting point of 87ºC, a boiling point of 370.2ºC at 760 mmHg, a density of 1.06g/cm3 and a flash point of 177.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 621-90-9
- Jingsj CID
- J-31503-2
- Molecular Formula
- C13H13N3
- Molecular Weight
- 211.26200 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 87ºC |
|---|---|
| Boiling Point | 370.2ºC at 760 mmHg |
| Density | 1.06g/cm3 |
| Flash Point | 177.7ºC |
| Exact Mass | 211.11100 |
| PSA | 36.75000 |
| LogP | 4.21670 |
| Refractive Index | 1.584 |
Customs & Trade Information
| HS Code | 2927000090 |
|---|---|
| Summary | 2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-(Methylamino)azobenzene?
The CAS number of 4-(Methylamino)azobenzene is 621-90-9.
What are the molecular formula and molecular weight of 4-(Methylamino)azobenzene?
4-(Methylamino)azobenzene has molecular formula C13H13N3 and molecular weight 211.26200 g/mol.
What are the upstream and downstream products of 4-(Methylamino)azobenzene?
For 4-(Methylamino)azobenzene, Upstream Products: Methyl Yellow, Benzenediazonium chloride, N-Methylaniline; Downstream Products: Methyl Yellow.
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-(Methylamino)azobenzene (CAS 621-90-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31503-2 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.