3-(4-Methoxyphenyl)isoxazole-5-carbonyl chloride CAS 890095-73-5
| CAS No. | 890095-73-5 |
| Molecular Formula | C11H8ClNO3 |
| Molecular Weight | 237.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(4-Methoxyphenyl)isoxazole-5-carbonyl chloride 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.
3-(4-Methoxyphenyl)isoxazole-5-carbonyl chloride (CAS 890095-73-5), molecular formula C11H8ClNO3 and molecular weight 237.64 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-(4-Methoxyphenyl)isoxazole-5-carbonyl chloride (C11H8ClNO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H8ClNO3 |
| Molecular Weight | 237.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Methoxyphenyl Standards
- 5-(3-Methoxyphenyl)isoxazole-3-carbonyl chloride (CAS 88958-31-0)
- 5-(4-Methoxyphenyl)oxazole-4-carbonyl chloride (CAS 465514-15-2)
- N-(4-Methoxyphenyl)trifluoroacetimidoyl Chloride (CAS 75999-66-5)
- 4-(((2-Methoxyphenyl)thio)methyl)piperidine (CAS 1247166-42-2)
- 3-(((2-Methoxyphenyl)thio)methyl)piperidine (CAS 1247775-09-2)
- 2-(((4-Methoxyphenyl)thio)methyl)piperidine (CAS 1248080-55-8)
- 2-(((2-Methoxyphenyl)thio)methyl)piperidine (CAS 1248438-75-6)
- 4-(((4-Methoxyphenyl)thio)methyl)piperidine (CAS 1249407-63-3)
Recommended Standards
- 3-(4-Chlorophenyl)-5-methylisoxazole-4-carboxylic acid (CAS 91182-87-5)
- 3-(Benzo[d][1,3]dioxol-5-yl)-5-(chloromethyl)isoxazole (CAS 890094-21-0)
- 3-(3-Chlorophenyl)-5-methyl-1,2-oxazole-4-carboxylic acid (CAS 92545-95-4)
- 3a,4,5,6,7,8,9,9a-Octahydro-cycloocta[d]isoxazole-3-carboxylic acid methyl ester (CAS 30645-78-4)
- 3-[(2-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]amino}-1,1-dimethylethyl)sulfanyl]-2-butanone (CAS 478042-70-5)
- AMG-319, >98% (HPLC) (CAS 1608125-21-8)
- 4-Fluoro-3-methyl-5-(trifluoromethyl)benzonitrile (CAS 1373920-92-3)
- 2-(Benzo[d][1,3]dioxol-5-yl)-1-oxo-1,2-dihydroisoquinoline-4-carboxylic acid (CAS 1429901-74-5)
- 4-Phenethylquinazolin-2(1H)-one (CAS 1201632-76-9)
- 4-Methoxy-2,3,6-trimethylbenzaldehyde-d3 (CAS 1216683-89-4)
- 2-Methyl-6,7-dihydro-5H-cyclopenta[b]pyridin-5-one (CAS 173064-91-0)
- (9H-Fluoren-9-yl)methyl (4-carbamothioylphenyl)carbamate (CAS 1301738-97-5)
- 5-chloro-2H-[1,2,3]triazolo[4,5-d]pyrimidine (CAS 2634677-10-2)
- Liraglutide(5-31)TFA Salt (CAS CATO-C4X-19924)
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