4-Aminoazobenzene-3,4'-disulfonic acid
Also known as: 2-Amino-5-[(4-sulfophenyl)azo]benzenesulfonic acid, Benzenesulfonic acid, 2-amino-5-[(4-sulfophenyl)azo]-, 4-(4-Amino-3-sulfophenylazo)benzenesulfonic acid, 4-Amino-3,4'-disulfoazobenzene, EINECS 202-947-7
4-Aminoazobenzene-3,4'-disulfonic acid (CAS 101-50-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H11N3O6S2 and a molecular weight of 357.36200 g/mol. Key properties include a melting point of 13°C, a boiling point of 103 °C, a density of 0,928 g/cm3 and a flash point of 5°C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 101-50-8
- Jingsj CID
- J-26762-9
- Molecular Formula
- C12H11N3O6S2
- Molecular Weight
- 357.36200 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 13°C |
|---|---|
| Boiling Point | 103 °C |
| Density | 0,928 g/cm3 |
| Flash Point | 5°C |
| Exact Mass | 357.00900 |
| PSA | 176.24000 |
| LogP | 4.92040 |
| Refractive Index | 1.4146 |
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-Aminoazobenzene-3,4'-disulfonic acid?
The CAS number of 4-Aminoazobenzene-3,4'-disulfonic acid is 101-50-8.
What are the molecular formula and molecular weight of 4-Aminoazobenzene-3,4'-disulfonic acid?
4-Aminoazobenzene-3,4'-disulfonic acid has molecular formula C12H11N3O6S2 and molecular weight 357.36200 g/mol.
What are the upstream and downstream products of 4-Aminoazobenzene-3,4'-disulfonic acid?
For 4-Aminoazobenzene-3,4'-disulfonic acid, Upstream Products: 4-Aminoazobenzene hydrochloride, 4'-Aminoazobenzene-4-sulfonic acid, p-Diazobenzenesulfonic acid; Downstream Products: 2,5-Diaminobenzenesulfonic acid, Sulfanilic acid.
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-Aminoazobenzene-3,4'-disulfonic acid (CAS 101-50-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26762-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.