5-Methoxy-1H-benzimidazole-2-sulfonic acid

Name: 5-Methoxy-1H-benzimidazole-2-sulfonic acid
Brand: Vaqora Chemicals
SKU: VQ-032263

About 5-Methoxy-1H-benzimidazole-2-sulfonic acid

5-Methoxy-1H-benzimidazole-2-sulfonic acid (CAS 106135-28-8) is an impurity of Omeprazole offered by Vaqora Chemicals. Formula C8H8N2O4S, molecular weight 228.23 g/mol. Its systematic (IUPAC) name is 6-methoxy-1H-benzimidazole-2-sulfonic acid. It is also known as 5-methoxy-1H-1,3-benzodiazole-2-sulfonic acid or 1H-Benzimidazole-2-sulfonic acid, 6-methoxy-.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

As a characterised impurity of Omeprazole, 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.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

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

Industries

Related to Omeprazole

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

Omeprazole impurities

Specifications & identifiers

Chemical identifiers
Product name	5-Methoxy-1H-benzimidazole-2-sulfonic acid
Catalogue No.	VQ-032263
CAS Number	106135-28-8
IUPAC name	6-methoxy-1H-benzimidazole-2-sulfonic acid
Molecular formula	C₈H₈N₂O₄S
Molecular weight	228.23 g/mol
Exact mass	228.0205
Grade	Reference Standard
HSN code	38229090
InChIKey	SZHBMDJFGQCIPU-UHFFFAOYSA-N
SMILES	COC1=CC2=C(C=C1)N=C(N2)S(=O)(=O)O
PubChem CID	2055059

Physical properties
Physical form	Solid
H-bond donors / acceptors	2 / 5
TPSA	101 Å²
Synonyms	5-Methoxy-1H-benzo[d]imidazole-2-sulfonic acid, 6-Methoxy-1H-benzo[d]imidazole-2-sulfonic acid, 5-methoxy-1H-1,3-benzodiazole-2-sulfonic acid, 1H-Benzimidazole-2-sulfonic acid, 6-methoxy-, 5-methoxybenzimidazole-2-sulfonic acid, 6-methoxy-1H-benzimidazol-3-ium-2-sulfonate, 5-Methoxy-1H-benzo[d]imidazole-2-sulfonicacid

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 5-Methoxy-1H-benzimidazole-2-sulfonic acid?

The CAS Registry Number of 5-Methoxy-1H-benzimidazole-2-sulfonic acid is 106135-28-8. It is also known as 5-Methoxy-1H-benzo[d]imidazole-2-sulfonic acid, 6-Methoxy-1H-benzo[d]imidazole-2-sulfonic acid, 5-methoxy-1H-1,3-benzodiazole-2-sulfonic acid.

What is the molecular formula and molecular weight of 5-Methoxy-1H-benzimidazole-2-sulfonic acid?

5-Methoxy-1H-benzimidazole-2-sulfonic acid has the molecular formula C8H8N2O4S and a molecular weight of 228.23 g/mol. Its IUPAC name is 6-methoxy-1H-benzimidazole-2-sulfonic acid.

What is 5-Methoxy-1H-benzimidazole-2-sulfonic acid used for?

5-Methoxy-1H-benzimidazole-2-sulfonic acid is supplied as a characterised reference material related to Omeprazole. 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 5-Methoxy-1H-benzimidazole-2-sulfonic acid can I order?

We supply 5-Methoxy-1H-benzimidazole-2-sulfonic 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 5-Methoxy-1H-benzimidazole-2-sulfonic acid?

Yes. Every lot of 5-Methoxy-1H-benzimidazole-2-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 5-Methoxy-1H-benzimidazole-2-sulfonic acid be shipped internationally?

Yes. We export 5-Methoxy-1H-benzimidazole-2-sulfonic acid worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.