3-Phenylisoxazolo[5,4-b]pyridine-5-carboxylic acid CAS 949983-87-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 949983-87-3 |
| Molecular Formula | C13H8N2O3 |
| Molecular Weight | 240.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Phenylisoxazolo[5,4-b]pyridine-5-carboxylic acid (CAS 949983-87-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C13H8N2O3. Molecular weight: 240.21 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C13H8N2O3 |
| Molecular Weight | 240.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Phenylisoxazolo Standards
- 3-Methyl-7-phenylisoxazolo[4,5-d]pyridazine-4(5H)-thione (CAS 923569-76-0)
- 6-Phenylisoxazolo[5,4-e]pyrazolo[5,1-c][1,2,4]triazin-3-amine (CAS 1374509-55-3)
- 3-Methyl-4-phenylisoxazolo[3,4-d]pyridazin-7(6H)-one (CAS 17334-68-8)
- 3-Methyl-6-phenylisoxazolo[5,4-b]pyridin-4-ol (CAS 61658-63-7)
- 3-Methyl-4-phenylisoxazolo[4,3-c]quinoline (CAS 141247-07-6)
- 3-Phenylisoxazolo[5,4-d]pyrimidin-4(5H)-one (CAS 15832-30-1)
- 3-Phenylisoxazolo[5,4-d]pyrimidin-4-amine (CAS 15846-07-8)
- 1-(4-(7-Phenylisoxazolo[3,4-d]pyridazin-4-yl)phenyl)ethanone (CAS 825633-25-8)
Recommended Standards
- 3-Oxo-3H-benzo[f]chromene-2-carboxylic acid (CAS 4361-00-6)
- 4-((3-Hydroxypropyl)amino)-3-nitrobenzoic acid (CAS 306280-77-3)
- 3-Methoxy-4-(2-methoxy-2-oxoethoxy)benzoic acid (CAS 94946-79-9)
- N-[5-(Aminomethyl)-4H-1,2,4-triazol-3-yl]-4,6-dimethylpyrimidin-2-amine dihydrochloride (CAS 2109294-81-5)
- 1-(2-Cyclopropyl-6-methylpyrimidin-4-yl)-1H-pyrazole-3-carboxylic acid (CAS 1713463-30-9)
- 2-((1,3-Dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)amino)ethyl 4-methylbenzenesulfonate (CAS 130634-04-7)
- 1-(4-Bromophenyl)-N'-hydroxycyclobutanecarboximidamide (CAS 1361189-45-8)
- Imrecoxib Impurity 45 (CAS CATO-C4X-237945)
- Lutetium fluoride(III), 99.99% trace metals basis (CAS 13760-81-1)
- Palmitoyl Tripeptide -5 · 2 TFA (CAS 623172-56-5)
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 13829788188 / jacky.chen@cato-chem.com