Imidazole-1-sulfonic Acid

Name: Imidazole-1-sulfonic Acid
Brand: Vaqora Chemicals
SKU: VQ-047831

About Imidazole-1-sulfonic Acid

Imidazole-1-sulfonic Acid (CAS 21108-81-6) is a process intermediate or related compound of Clofarabine offered by Vaqora Chemicals. With the molecular formula C3H4N2O3S, it has a molar mass of 148.14 g/mol. It is also known as 1H-Imidazole-1-sulfonic Acid.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Process chemists and analysts use it when developing synthetic routes to Clofarabine, tracking process-related impurities and validating analytical methods. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer Imidazole-1-sulfonic Acid in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Clofarabine

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

Clofarabine impurities

Specifications & identifiers

Chemical identifiers
Product name	Imidazole-1-sulfonic Acid
Catalogue No.	VQ-047831
CAS Number	21108-81-6
IUPAC name	imidazole-1-sulfonic acid
Molecular formula	C₃H₄N₂O₃S
Molecular weight	148.14 g/mol
Exact mass	147.9943
HSN code	2933
InChIKey	DJQSZCMOJNOVPS-UHFFFAOYSA-N
SMILES	C1=CN(C=N1)S(=O)(=O)O
PubChem CID	275086

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.8
H-bond donors / acceptors	1 / 4
TPSA	80.6 Å²

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 Imidazole-1-sulfonic Acid?

The CAS Registry Number of Imidazole-1-sulfonic Acid is 21108-81-6. It is also known as 1H-Imidazole-1-sulfonic Acid.

What is the molecular formula and molecular weight of Imidazole-1-sulfonic Acid?

Imidazole-1-sulfonic Acid has the molecular formula C3H4N2O3S and a molecular weight of 148.14 g/mol. Its IUPAC name is imidazole-1-sulfonic acid.

What is Imidazole-1-sulfonic Acid used for?

Imidazole-1-sulfonic Acid is supplied as a characterised reference material related to Clofarabine. 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 Imidazole-1-sulfonic Acid can I order?

We supply Imidazole-1-sulfonic Acid, 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 Imidazole-1-sulfonic Acid?

Yes. Every lot of Imidazole-1-sulfonic 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 Imidazole-1-sulfonic Acid be shipped internationally?

Yes. We export Imidazole-1-sulfonic Acid worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.