4-Amino-5-bromothiophene-2-carboxylic acidhydrochloride CAS 89499-50-3
| CAS No. | 89499-50-3 |
| Molecular Formula | C5H4BrNO2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 4-Amino-5-bromothiophene-2-carboxylic acidhydrochloride (CAS 89499-50-3), a certified reference material (molecular formula C5H4BrNO2SHCl, MW 258.51 g/mol) for analytical method development and quality control.
Structurally, 4-Amino-5-bromothiophene-2-carboxylic acidhydrochloride (C5H4BrNO2SHCl) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/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 258.51 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.
As a certified reference material (CRM), 4-Amino-5-bromothiophene-2-carboxylic acidhydrochloride 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 | C5H4BrNO2S HCl |
| Molecular Weight | 258.51 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.) | 1982 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 3-(Chloromethyl)-N-cyclopentylbenzamide (CAS 1094431-63-6)
- 1-(2-bromo-5-fluorophenyl)propan-2-one (CAS 1250521-52-8)
- 4-Methyl-6-phenyl-3-(m-tolylsulfonyl)pyridin-2(1H)-one (CAS 321431-40-7)
- 5-Bromo-2-(3,5-dimethyl-1H-pyrazol-1-yl)pyridine (CAS 1150164-92-3)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
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