5-Bromo-1,3-benzothiazole-2-carboxylic acid CAS 1187928-52-4
| CAS No. | 1187928-52-4 |
| Molecular Formula | C8H4BrNO2S |
| Molecular Weight | 258.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H4BrNO2S, 5-Bromo-1,3-benzothiazole-2-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 258.09 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).
5-Bromo-1,3-benzothiazole-2-carboxylic acid (CAS 1187928-52-4), molecular formula C8H4BrNO2S and molecular weight 258.09 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 | C8H4BrNO2S |
| Molecular Weight | 258.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 5-(Thiophen-2-yl)-3h,4h-thieno[2,3-d]pyrimidin-4-one (CAS 215928-54-4)
- N-(6-Methoxypyridin-2-yl)pivalamide (CAS 851102-40-4)
- 2-Iodo-5-Methylbenzene-1,3-Diol (CAS 112639-11-9)
- Glucagon-like peptide 2 (CAS 89750-15-2)
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