2-Boronothiophene-3-carboxylic acid CAS 519054-53-6
| CAS No. | 519054-53-6 |
| Molecular Formula | C5H5BO4S |
| Molecular Weight | 171.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Boronothiophene-3-carboxylic acid is closely related to a carbohydrate-derived structure, a sulfone group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Boronothiophene-3-carboxylic acid (CAS 519054-53-6) is a high-purity analytical reference standard with the molecular formula C5H5BO4S and a molecular weight of 171.97 g/mol.
The molecular framework of 2-Boronothiophene-3-carboxylic acid (C5H5BO4S) is characterized by a carbohydrate-derived structure, a sulfone group. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C5H5BO4S |
| Molecular Weight | 171.97 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1984 |
| Sulfur Atoms | 1 |
Related Boronothiophene Standards
Recommended Standards
- (4-Oxo-2-thioxo-1,2,3,4-tetrahydropyrimidin-5-yl)boronic acid (CAS 125177-38-0)
- 2-Carboxythiophene-3-boronic acid (CAS 5503-74-2)
- (2-Carbamoylthiazol-5-yl)boronic acid (CAS 1190875-33-2)
- 2-Carboxythiophene-5-boronic acid (CAS 465515-31-5)
- 3-Bromo-6-chloro-9H-carbazole (CAS 51501-58-7)
- 2-(4-Chlorophenyl)-5-[(4-methoxyphenoxy)methyl]-4-methyl-1,3-thiazole (CAS 865658-28-2)
- 5-Fluoro-1-isopropyl-1H-indazole-3-carboxylic acid (CAS 863248-93-5)
- Baicalin methyl ester (CAS 82475-03-4)
- 2-Amino-3-(3-ethynylphenyl)propanoic acid (CAS 949115-87-1)
- 2-amino-5-tert-butylthiophene-3-carbonitrile (CAS 612504-40-2)
- Dimethyl 2,5-dimethoxyterephthalate (CAS 21004-12-6)
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- 2-(Chloromethyl)-4-cyano-3-(difluoromethyl)-6-iodopyridine (CAS 1807096-20-3)
- C-Peptide 2 (rat) (CAS 41594-08-5)
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