5-(3-Methoxyphenyl)oxazole-4-carboxylic acid CAS 1083274-30-9
| CAS No. | 1083274-30-9 |
| Molecular Formula | C11H9NO4 |
| Molecular Weight | 219.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-(3-Methoxyphenyl)oxazole-4-carboxylic 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.
CATO supplies 5-(3-Methoxyphenyl)oxazole-4-carboxylic acid (CAS 1083274-30-9), a certified reference material (molecular formula C11H9NO4, MW 219.19 g/mol) for analytical method development and quality control.
The molecular framework of 5-(3-Methoxyphenyl)oxazole-4-carboxylic acid (C11H9NO4) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C11H9NO4 |
| Molecular Weight | 219.19 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
Related Methoxyphenyl Standards
- 5-(4-Methoxyphenyl)oxazole-2-carboxylic acid (CAS 1019-93-8)
- 2-(4-Methoxyphenyl)oxazole-4-carboxylic acid (CAS 1065102-54-6)
- 3-(3-Methoxyphenyl)isoxazole-5-carboxylic acid (CAS 883546-38-1)
- 3-(4-Methoxyphenyl)isoxazole-5-carboxylic acid (CAS 618383-47-4)
- 5-(2-Methoxyphenyl)-1,2-oxazole-3-carboxylic acid (CAS 668971-16-2)
- 5-(2-Methoxyphenyl)-1,2-oxazole-4-carboxylic acid (CAS 887408-15-3)
- 5-(3-Methoxyphenyl)isoxazole-3-carboxylic acid (CAS 668971-56-0)
- 5-(3-Methoxyphenyl)isoxazole-4-carboxylic acid (CAS 887408-16-4)
Recommended Standards
- 106660-13-3 Methyl (2E)-(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene)acetate MFCD01451362 (CAS 106660-13-3)
- 3-[(3,4-difluorophenyl)carbonyl]pyridine (CAS 1094374-86-3)
- [5-(1,3-benzodioxol-5-yl)isoxazol-3-yl]methanol (CAS 1105191-28-3)
- methyl 5,5-difluoro-4-oxo-1,6-dihydrocyclopenta[b]pyrrole-2-carboxylate (CAS 1041430-63-0)
- 2-(3-Dimethylamino-pyrrolidin-1-yl)-ethanol (CAS 1284976-04-0)
- 2-Isopropoxy-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1451391-04-0)
- Aceroside VIII (CAS 104109-46-8)
- (E)-N-(2,4-difluorophenyl)-3-(4-isobutylphenyl)acrylamide (CAS 900019-81-0)
- 4-(2-Phenyl-1H-imidazol-1-yl)butanoic acid hydrochloride (CAS 1059626-15-1)
- 2-ethyl-1H-imidazole-5-carboxylic acid (CAS 84255-21-0)
- 4-((Methylsulfonyl)methyl)benzaldehyde (CAS 156867-56-0)
- N-Ethyl-9H-purin-6-amine (CAS 16370-43-7)
- 2-(4-(Difluoromethyl)-3,5-dimethoxypyridin-2-yl)acetonitrile (CAS 1806816-82-9)
- Peptide 434 (CAS CATO-CPTD788434)
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