| CAS No. | 125261-72-5 |
| Molecular Formula | C4H9BO2 |
| Molecular Weight | 99.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-But-2-en-2-ylboronic acid.
(E)-But-2-en-2-ylboronic acid (CAS 125261-72-5), molecular formula C4H9BO2 and molecular weight 99.92 g/mol, is a CATO reference standard with documented purity and traceability.
(E)-But-2-en-2-ylboronic acid (C4H9BO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures (E)-But-2-en-2-ylboronic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C4H9BO2 |
| Molecular Weight | 99.92 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) | 0.5 |
| CAS Registry Year (est.) | 1992 |