1-Benzyl-1H-benzimidazole-2-sulfonic acid CAS 90331-20-7
| CAS No. | 90331-20-7 |
| Molecular Formula | C14H12N2O3S |
| Molecular Weight | 288.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Benzyl-1H-benzimidazole-2-sulfonic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
1-Benzyl-1H-benzimidazole-2-sulfonic acid (CAS 90331-20-7), molecular formula C14H12N2O3S and molecular weight 288.32 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H12N2O3S, 1-Benzyl-1H-benzimidazole-2-sulfonic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 288.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C14H12N2O3S |
| Molecular Weight | 288.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
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- 1H-Pyrrolo[2,3-b]pyridine, 4-methoxy-1-(phenylsulfonyl)- (CAS 916574-87-3)
- 1-[(dimethyl-1,2-oxazol-4-yl)sulfonyl]piperidine-3-carboxylic acid (CAS 875163-82-9)
- 2-((5-Ethyl-5H-[1,2,4]triazino[5,6-b]indol-3-yl)thio)acetic acid (CAS 337489-46-0)
- [1,2'-Binaphthalen]-4-ylboronic acid (CAS 1165943-53-2)
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- 4-Bromo-2-(pyridin-4-yl)pyridazin-3(2h)-one (CAS 2251053-99-1)
- 5-[(pyrrolidin-1-yl)methyl]pyridin-2-amine (CAS 913573-02-1)
- (4-Cyclohexylphenyl)methanamine (CAS 74067-97-3)
- 1-(4-(4-Acetyl-2-fluorophenyl)piperazin-1-yl)-2-chloroethan-1-one (CAS 923170-91-6)
- 1-(2-Chlorobenzyl)-2-(2-chloropyridin-3-yl)-1H-benzo[d]imidazole (CAS 338411-31-7)
- 3-Bromo-4-(3,3-difluoropiperidin-1-yl)nitrobenzene 1707365-50-1 (CAS 1707365-50-1)
- DL-Phenylalanyl-L-alanine (CAS 3918-86-3)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
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