2-Bromo-5-hydroxybenzothiazole CAS 1261493-22-4
| CAS No. | 1261493-22-4 |
| Molecular Formula | C7H4BrNOS |
| Molecular Weight | 230.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-5-hydroxybenzothiazole (C7H4BrNOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-Bromo-5-hydroxybenzothiazole (CAS 1261493-22-4), molecular formula C7H4BrNOS and molecular weight 230.08 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 2-Bromo-5-hydroxybenzothiazole 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.
Physical & Chemical Properties
| Molecular Formula | C7H4BrNOS |
| Molecular Weight | 230.08 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromo Standards
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- 5-Bromo-8-fluoro-1,2,3,4-tetrahydroquinoline (CAS 1153255-07-2)
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Recommended Standards
- 1-(4-Bromo-3-fluorophenyl)cyclopropanamine (CAS 1260887-57-7)
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- 5-(5-Bromothiophen-2-yl)-1,3-oxazole (CAS 1268029-67-9)
- 4-(5-amino-6-(1-oxo-1,2,3,4-tetrahydroisoquinolin-6-yl)pyrazin-2-yl)-N-cyclopropyl-N-methylbenzenesulfonamide (CAS 1396771-17-7)
- 2-{4-methoxypyrrolo[2,1-f][1,2,4]triazin-7-yl}propanoic acid (CAS 2092237-77-7)
- 2,2′-Dibromo-5,5′-diiodo-1,1′-biphenyl (CAS 852139-02-7)
- 2-((2-Amino-6-fluoropyrimidin-4-yl)amino)ethanol (CAS 188987-84-0)
- 1-[5-Bromo-2-(methylamino)phenyl]ethanone (CAS 40166-68-5)
- 842140-35-6 1-(2-bromoprop-2-enyl)-3,5-difluorobenzene DTXSID30373638 (CAS 842140-35-6)
- Mesalazine EP Impurity Q (CAS 3970-35-2)
- 1-(2-Fluorobenzyl)-1H-pyrazole-3-carboxylic acid (CAS 1344305-66-3)
- 2-(4-Methyl-4h-1,2,4-triazol-3-yl)aniline (CAS 1087792-28-6)
- Custom peptides (CAS CATO-CPTD788509)
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