Isoxazole-4-boronic Acid CAS 1008139-25-0
| CAS No. | 1008139-25-0 |
| Molecular Formula | C3H4BNO3 |
| Molecular Weight | 112.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Isoxazole-4-boronic Acid.
Isoxazole-4-boronic Acid (CAS 1008139-25-0), molecular formula C3H4BNO3 and molecular weight 112.88 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Isoxazole-4-boronic Acid (C3H4BNO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.5, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 112.88 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Isoxazole-4-boronic 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.
Physical & Chemical Properties
| Molecular Formula | C3H4BNO3 |
| Molecular Weight | 112.88 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 1 |
Related Isoxazole Standards
- Isoxazole-3-carboxylic acid (CAS 3209-71-0)
- Isoxazole-5-carboxamide (CAS 89032-77-9)
- Isoxazole-4,5-dicarbonitrile (CAS 1256633-32-5)
- Isoxazole-3,5-diamine (CAS 412301-06-5)
- Isoxazole-5-methanol (CAS 98019-60-4)
- Isoxazole-4-acetic Acid (CAS 141679-57-4)
- Isoxazole-4-carboxylic acid methyl ester (CAS 15166-81-1)
- Isoxazole-4-carbohydrazide (CAS 885273-78-9)
Recommended Standards
- Zirconium Boride (CAS 12045-64-6)
- 5-Isoxazolylboronic AcidDISCONTINUED. Please see T774950. (CAS 1207539-54-5)
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- tert-Butyl 6-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (CAS 2096341-89-6)
- 4-Chloro-1H-pyrazol-1-amine (CAS 3994-41-0)
- Semaglutide impurity 50 (CAS 2773558-66-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com