3-(4-Chloro-3-fluorophenyl)isoxazole-5-carboxylic acid CAS 1126636-63-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1126636-63-2 |
| Molecular Formula | C10H5ClFNO3 |
| Molecular Weight | 241.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-(4-Chloro-3-fluorophenyl)isoxazole-5-carboxylic acid (CAS 1126636-63-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C10H5ClFNO3. Molecular weight: 241.60 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C10H5ClFNO3 |
| Molecular Weight | 241.60 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 5-Chloro-8-fluoro-4-hydroxyquinoline-3-carboxylic acid (CAS 1019015-75-8)
- 6-Chloro-8-fluoro-4-hydroxyquinoline-3-carboxylic acid (CAS 1019015-83-8)
- 7-Chloro-8-fluoro-4-hydroxyquinoline-3-carboxylic acid (CAS 1019015-91-8)
- 8-Chloro-6-fluoro-4-hydroxyquinoline-3-carboxylic acid (CAS 1019015-99-6)
- 3-(2-Chloro-6-fluorophenyl)isoxazole-5-carboxylic acid (CAS 1038715-02-4)
- 6-Chloro-7-fluoro-4-hydroxyquinoline-3-carboxylic acid (CAS 1065093-55-1)
- 8-Chloro-5-fluoro-4-hydroxyquinoline-3-carboxylic acid (CAS 1065093-58-4)
- 8-Chloro-7-fluoro-4-hydroxyquinoline-3-carboxylic acid (CAS 1065093-59-5)
Recommended Standards
- 7-Chloro-6-fluoro-4-hydroxyquinoline-3-carboxylic acid (CAS 108494-78-6)
- 3-(3-chloro-2-fluorophenyl)-1,2-oxazole-5-carboxylic acid (CAS 1126636-81-4)
- 5-(2-chloro-4-fluorophenyl)-1,2-oxazole-4-carboxylic acid (CAS 1506583-02-3)
- 8-Bromo-3,4-dihydro-2h-benzo[b][1,4]oxazine hydrochloride (CAS 625394-66-3)
- 16784-72-8 7KV2DH7E7A Tri(o-nonylphenyl) phosphite Phenol, 2-nonyl-, 1,1',1''-phosphite Phenol, 2-nonyl-, phosphite (3:1) o-Nonylphenol, phosphite (3:1) Tris(o-nonylphenyl) phosphite UNII-7KV2DH7E7A (CAS 16784-72-8)
- 3-Bromo-4-(chloromethyl)pyridine (CAS 1060802-26-7)
- Methyl 2-(1-(benzo[d]thiazol-2-yl)-5-hydroxy-1H-pyrazol-3-yl)acetate (CAS 523992-06-5)
- (2S)-3-Amino-2-(4-methylphenyl)propanoic acid (CAS 1260684-80-7)
- MEthyl n-(3-chlorophenyl)-n'-cyanoimidothiocarbamate (CAS 72500-48-2)
- Semaglutide impurity 196 (CAS CATO-C4X-2226196)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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