| CAS No. | 930303-82-5 |
| Molecular Formula | C5H7BO2S |
| Molecular Weight | 141.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 141.98 g/mol gives 5-Methylthiophene-3-boronic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Methylthiophene-3-boronic acid (CAS 930303-82-5), molecular formula C5H7BO2S and molecular weight 141.98 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H7BO2S, 5-Methylthiophene-3-boronic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 141.98 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Methylthiophene-3-boronic 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.
| Molecular Formula | C5H7BO2S |
| Molecular Weight | 141.98 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |