2-(4-Hydroxyphenyl)benzo[d]oxazol-5-ol CAS 142629-43-4
| CAS No. | 142629-43-4 |
| Molecular Formula | C13H9NO3 |
| Molecular Weight | 227.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-(4-Hydroxyphenyl)benzo[d]oxazol-5-ol 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.
2-(4-Hydroxyphenyl)benzo[d]oxazol-5-ol (CAS 142629-43-4) is a high-purity analytical reference standard with the molecular formula C13H9NO3 and a molecular weight of 227.22 g/mol.
The molecular framework of 2-(4-Hydroxyphenyl)benzo[d]oxazol-5-ol (C13H9NO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C13H9NO3 |
| Molecular Weight | 227.22 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 1 |
Related Hydroxyphenyl Standards
- 2-(4-Hydroxyphenyl)benzo[d]oxazol-6-ol (CAS 139407-74-2)
- 2-(4-Hydroxyphenyl)-N-phenylacetamide (CAS 131179-71-0)
- n-(2-Hydroxyphenyl)-2-methylbenzamide (CAS 17847-71-1)
- N-(2-Hydroxyphenyl)-2-phenylacetamide (CAS 95384-58-0)
- N-(2-hydroxyphenyl)-N-phenylacetamide (CAS 861613-67-4)
- N-(4-hydroxyphenyl)-3-methylbenzamide (CAS 314751-32-1)
- N-(4-hydroxyphenyl)-4-methylbenzamide (CAS 23646-69-7)
- 4-(4-Hydroxyphenyl)thiomorpholine 1,1-dioxide (CAS 103661-13-8)
Recommended Standards
- 1-(Indolizin-3-yl)-1H-pyrazole-5-carboxylic acid (CAS 1422061-22-0)
- 4-Cyano-N-(1-methyl-1h-1,2,4-triazol-5-yl)benzamide (CAS 1427870-28-7)
- 1-(Indolizin-3-yl)-1H-pyrazole-3-carboxylic acid (CAS 1422060-79-4)
- (2-Morpholin-4-yl-4-oxo-4,5-dihydro-1H-imidazol-5-yl)acetic acid (CAS 1432065-70-7)
- (R)-1-Isothiocyanato-5-(methylsulfinyl)pentane (CAS 167963-06-6)
- Ethyl 8-hydroxy-6-oxo-2,3,4,6-tetrahydro-1H-quinolizine-9-carboxylate (CAS 61486-97-3)
- 4-Iodo-6-methoxy-5-nitropyrimidine (CAS 144216-53-5)
- N-(2,2-dimethylthietan-3-yl)-2-methoxypropanamide (CAS 1864683-92-0)
- (2S,4R)-1-tert-Butyl 2-ethyl 4-aminopyrrolidine-1,2-dicarboxylate hydrochloride (CAS 2187426-87-3)
- 1-Butyl-1-phenylhydrazine (CAS 61715-75-1)
- Dimethyl 1-(3-chloro-2-methylphenyl)-1H-pyrazole-3,4-dicarboxylate (CAS 853349-12-9)
- 4-chloro-3-methyl-1H-pyrazolo[3,4-b]pyridine (CAS 1256835-57-0)
- 3-Chlorofuran-2-carbonyl Chloride (CAS 66144-46-5)
- Semaglutide (CAS CATO-C4X-2226105)
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