5-bromothieno[2,3-b]pyridine-2-carboxylic acid CAS 1242336-81-7
| CAS No. | 1242336-81-7 |
| Molecular Formula | C8H12BrNO2S |
| Molecular Weight | 266.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-bromothieno[2,3-b]pyridine-2-carboxylic acid (C8H12BrNO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 266.16 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 5-bromothieno[2,3-b]pyridine-2-carboxylic acid (CAS 1242336-81-7), a certified reference material (molecular formula C8H12BrNO2S, MW 266.16 g/mol) for analytical method development and quality control.
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), 5-bromothieno[2,3-b]pyridine-2-carboxylic acid 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 | C8H12BrNO2S |
| Molecular Weight | 266.16 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related bromothieno Standards
- 3-bromothieno[3,2-b]pyridine-2-carboxylic acid (CAS 1104630-93-4)
- 6-bromothieno[3,2-b]pyridine-2-carboxylic acid (CAS 1895300-05-6)
- 6-bromothieno[3,2-b]pyridine-3-carboxylic acid (CAS 2137827-09-7)
- 2-Bromothieno[2,3-c][1,5]naphthyridine (CAS 172093-51-5)
- 6-bromothieno[3,2-b]thiophene-5-carboxylic acid (CAS 2573123-41-6)
- 6-Bromothieno[3,2-b]thiophene-2-carboxylic Acid (CAS 125493-06-3)
- 5-Bromothieno[3,2-b]thiophene-2-carboxylic acid (CAS 1378448-42-0)
- Methyl 5-bromothieno[2,3-b]pyridine-2-carboxylate (CAS 1250443-94-7)
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