2-chloro-5-(chlorosulfonyl)benzoic acid
Also known as: 2-chloro-5-chlorosulfonylbenzoic acid, 2-chloro-5-(chlorosulphonyl)benzoic acid, 3-Carboxy-4-chlorobenzenesulfonyl chloride, 5-(Chlorosulfonyl)-2-chlorobenzoic acid, Benzoic acid, 2-chloro-5-(chlorosulfonyl)-, NSC 137839, 2-Chlor-5-chlorsulfonyl-benzoesaeure
2-chloro-5-(chlorosulfonyl)benzoic acid (CAS 137-64-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4Cl2O4S and a molecular weight of 255.07500 g/mol. Key properties include a melting point of 61-62 ºC, a boiling point of 402ºC at 760mmHg, a density of 1.694g/cm3 and a flash point of 196.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 137-64-4
- Jingsj CID
- J-28482-2
- Molecular Formula
- C7H4Cl2O4S
- Molecular Weight
- 255.07500 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 61-62 ºC |
|---|---|
| Boiling Point | 402ºC at 760mmHg |
| Density | 1.694g/cm3 |
| Flash Point | 196.9ºC |
| Exact Mass | 253.92100 |
| PSA | 79.82000 |
| LogP | 3.04650 |
| Vapor Pressure | 3.49E-07mmHg at 25°C |
| Refractive Index | 1.599 |
| Additional Property | Very slightly soluble (0.94 g/L) (25 ºC) |
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives 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-chloro-5-(chlorosulfonyl)benzoic acid?
The CAS number of 2-chloro-5-(chlorosulfonyl)benzoic acid is 137-64-4.
What are the molecular formula and molecular weight of 2-chloro-5-(chlorosulfonyl)benzoic acid?
2-chloro-5-(chlorosulfonyl)benzoic acid has molecular formula C7H4Cl2O4S and molecular weight 255.07500 g/mol.
What are the upstream and downstream products of 2-chloro-5-(chlorosulfonyl)benzoic acid?
For 2-chloro-5-(chlorosulfonyl)benzoic acid, Upstream Products: 2-Chlorobenzoic acid; Downstream Products: 2-Chloro-5-(piperidin-1-ylsulfonyl)benzoic acid, 2-Amino-5-(N-methylsulfamoyl)benzoic acid, 2-Sulfamoylbenzoic 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. "2-chloro-5-(chlorosulfonyl)benzoic acid (CAS 137-64-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28482-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.