2-chloro-1,3-benzothiazole-6-carboxamide CAS 945400-86-2
| CAS No. | 945400-86-2 |
| Molecular Formula | C8H5ClN2OS |
| Molecular Weight | 212.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
2-chloro-1,3-benzothiazole-6-carboxamide (CAS 945400-86-2), molecular formula C8H5ClN2OS and molecular weight 212.66 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H5ClN2OS, 2-chloro-1,3-benzothiazole-6-carboxamide contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 212.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C8H5ClN2OS |
| Molecular Weight | 212.66 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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- Tert-butyl 6-hydroxy-1-azaspiro[4.4]Nonane-1-carboxylate (CAS 2306270-91-5)
- 3-(Trifluoromethoxy)propan-1-amine hydrochloride (CAS 1286744-11-3)
- 2-(4-Chloro-5-fluoro-3-methylpyridin-2-yl)-2-cyclopropylacetonitrile (CAS 169749-86-4)
- 5-fluoro-3-iodo-1H-pyrazolo[3,4-b]pyridine (CAS 1350653-23-4)
- Tau Peptide (275-305) (Repeat 2 Domain) trifluoroacetate salt (CAS 330456-25-2)
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