4-Bromothiazole-2-sulfonic acid CAS 1209460-13-8
| CAS No. | 1209460-13-8 |
| Molecular Formula | C3H2BrNO3S2 |
| Molecular Weight | 244.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Bromothiazole-2-sulfonic acid is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Bromothiazole-2-sulfonic acid (CAS 1209460-13-8), molecular formula C3H2BrNO3S2 and molecular weight 244.09 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C3H2BrNO3S2, 4-Bromothiazole-2-sulfonic acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 244.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C3H2BrNO3S2 |
| Molecular Weight | 244.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Bromothiazole Standards
- Ethyl 2-bromothiazole-4-carboxylate (CAS 100367-77-9)
- Ethyl 5-Bromothiazole-2-carboxylate (CAS 1202237-88-4)
- Ethyl 4-bromothiazole-5-carboxylate (CAS 152300-60-2)
- Ethyl 2-Bromothiazole-5-carboxylate (CAS 41731-83-3)
- ethyl 5-bromothiazole-4-carboxylate (CAS 61830-23-7)
- 5-Benzyl-2-bromothiazole (CAS 1196153-11-3)
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- 5-Bromothiazole-2-sulfonyl chloride (CAS 1272357-53-5)
Recommended Standards
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- (S)-Methyl 2-amino-2-(4-bromophenyl)acetate (CAS 1213363-95-1)
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- 4-Fluorobenzamide (CAS 824-75-9)
- 2-Bromo-3-(trifluoromethyl)benzamide (CAS 1369884-25-2)
- Oxacillin Impurity 20 HCI (CAS CATO-C4X-232120)
- (4-Isopropylphenyl)(phenyl)methanamine (CAS 740028-54-0)
- Ethyl 3-(3-(trifluoromethyl)phenyl)-1H-1,2,4-triazole-5-carboxylate (CAS 1406499-24-8)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
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