2-Aminobenzo[d]thiazole-6-sulfonic acid CAS 21951-32-6
| CAS No. | 21951-32-6 |
| Molecular Formula | C7H6N2O3S2 |
| Molecular Weight | 230.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H6N2O3S2, 2-Aminobenzo[d]thiazole-6-sulfonic acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 230.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2-Aminobenzo[d]thiazole-6-sulfonic acid (CAS 21951-32-6), molecular formula C7H6N2O3S2 and molecular weight 230.26 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H6N2O3S2 |
| Molecular Weight | 230.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Aminobenzo Standards
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- 3-Cyclohexyl-2-(1-oxo-2,3-dihydro-1H-isoindol-2-yl)propanoic acid (CAS 338749-13-6)
- 3-(5-(4-(tert-butoxycarbonyl)-2-oxopiperazin-1-yl)furan-2-yl)propanoic acid (CAS CATO-C3D-262284)
- 5,6-Dimethyl-3-(methylamino)pyrazin-2-ol (CAS 53186-76-8)
- 3-(Adamantan-1-yl)-1H-pyrazole-5-carbaldehyde (CAS 1310738-85-2)
- (Leu31,Pro3?)-Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 132699-73-1)
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