4-Chloro-3-(chlorosulfonyl)benzoic Acid

Name: 4-Chloro-3-(chlorosulfonyl)benzoic Acid
Brand: Vaqora Chemicals
SKU: VQ-037697

About 4-Chloro-3-(chlorosulfonyl)benzoic Acid

Vaqora Chemicals supplies 4-Chloro-3-(chlorosulfonyl)benzoic Acid, an impurity of Indapamide registered under CAS number 2494-79-3. Formula C7H4Cl2O4S, molecular weight 255.07 g/mol. It is also known as 4-Chloro-3-(chlorosulphonyl)benzoic acid or Benzoic acid, 4-chloro-3-(chlorosulfonyl)-.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

As a characterised impurity of Indapamide, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 4-Chloro-3-(chlorosulfonyl)benzoic Acid is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Indapamide

View every impurity, metabolite and intermediate we list for Indapamide.

Indapamide impurities

Specifications & identifiers

Chemical identifiers
Product name	4-Chloro-3-(chlorosulfonyl)benzoic Acid
Catalogue No.	VQ-037697
CAS Number	2494-79-3
IUPAC name	4-chloro-3-chlorosulfonylbenzoic acid
Molecular formula	C₇H₄Cl₂O₄S
Molecular weight	255.07 g/mol
Exact mass	253.9207
Grade	Reference Standard
HSN code	38229090
InChIKey	LYBQQYNSZYSUMT-UHFFFAOYSA-N
SMILES	C1=CC(=C(C=C1C(=O)O)S(=O)(=O)Cl)Cl
PubChem CID	75613

Physical properties
Physical form	Solid
LogP (XLogP3)	2.1
H-bond donors / acceptors	1 / 4
TPSA	79.8 Å²
Synonyms	4-Chloro-3-(chlorosulphonyl)benzoic acid, Benzoic acid, 4-chloro-3-(chlorosulfonyl)-, 3-(Chlorosulfonyl)-4-chlorobenzoic Acid, 5-carboxy-2-chlorobenzenesulfonyl chloride, 3-Carboxy-6-chlorobenzenesulfonyl Chloride, 5-carboxy-2-chlorobenzenesulfon, 3-chlorosulfonyl-4-chlorobenzoic acid, 4-chloro-5-chlorosulfonylbenzoic acid, 4-chloro-5-chlorosulfonyl benzoic acid

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H318Causes serious eye damage

Precautionary statements: P264, P264 + P265, P270, P280, P301 + P317, P305 + P354 + P338, P317, P330, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 4-Chloro-3-(chlorosulfonyl)benzoic Acid?

The CAS Registry Number of 4-Chloro-3-(chlorosulfonyl)benzoic Acid is 2494-79-3. It is also known as 4-Chloro-3-(chlorosulphonyl)benzoic acid, Benzoic acid, 4-chloro-3-(chlorosulfonyl)-, 3-(Chlorosulfonyl)-4-chlorobenzoic Acid.

What is the molecular formula and molecular weight of 4-Chloro-3-(chlorosulfonyl)benzoic Acid?

4-Chloro-3-(chlorosulfonyl)benzoic Acid has the molecular formula C7H4Cl2O4S and a molecular weight of 255.07 g/mol. Its IUPAC name is 4-chloro-3-chlorosulfonylbenzoic acid.

What is 4-Chloro-3-(chlorosulfonyl)benzoic Acid used for?

4-Chloro-3-(chlorosulfonyl)benzoic Acid is supplied as a characterised reference material related to Indapamide. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of 4-Chloro-3-(chlorosulfonyl)benzoic Acid can I order?

We supply 4-Chloro-3-(chlorosulfonyl)benzoic Acid in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 4-Chloro-3-(chlorosulfonyl)benzoic Acid?

Yes. Every lot of 4-Chloro-3-(chlorosulfonyl)benzoic Acid is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 4-Chloro-3-(chlorosulfonyl)benzoic Acid be shipped internationally?

Yes. 4-Chloro-3-(chlorosulfonyl)benzoic Acid is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.