2-Amino-5-chlorobenzenesulfonic acid
Also known as: 5-Chloroorthanilic acid, 4-Chloroaniline-2-sulfonic acid, 4-chloroaniline-2-sulphonic acid, p-Chloroaniline-2-sulfonic acid, p-Chloroaniline-o-sulfonic acid, Diazoxide Impurity 1
2-Amino-5-chlorobenzenesulfonic acid (CAS 133-74-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H6ClNO3S and a molecular weight of 207.63500 g/mol. Key properties include a melting point of >300°C and a density of 1.642g/cm3. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 133-74-4
- Jingsj CID
- J-40734-1
- Molecular Formula
- C6H6ClNO3S
- Molecular Weight
- 207.63500 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >300°C |
|---|---|
| Density | 1.642g/cm3 |
| Exact Mass | 206.97600 |
| PSA | 88.77000 |
| LogP | 2.83090 |
| Refractive Index | 1.639 |
Customs & Trade Information
| HS Code | 2921420090 |
|---|---|
| Summary | HS:2921420090 aniline derivatives and their salts VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2-Amino-5-chlorobenzenesulfonic acid?
The CAS number of 2-Amino-5-chlorobenzenesulfonic acid is 133-74-4.
What are the molecular formula and molecular weight of 2-Amino-5-chlorobenzenesulfonic acid?
2-Amino-5-chlorobenzenesulfonic acid has molecular formula C6H6ClNO3S and molecular weight 207.63500 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Amino-5-chlorobenzenesulfonic acid (CAS 133-74-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40734-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.