4-phenyl-1,2-oxazole CAS 2439-92-1
| CAS No. | 2439-92-1 |
| Molecular Formula | C9H7NO |
| Molecular Weight | 145.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-phenyl-1,2-oxazole (C9H7NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 145.16 g/mol, it falls into the low-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
4-phenyl-1,2-oxazole (CAS 2439-92-1) is a high-purity analytical reference standard with the molecular formula C9H7NO and a molecular weight of 145.16 g/mol.
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.
CATO manufactures 4-phenyl-1,2-oxazole 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.
Physical & Chemical Properties
| Molecular Formula | C9H7NO |
| Molecular Weight | 145.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related phenyl Standards
- 2-ethyl-1,3-oxazole-5-carboxylic acid (CAS 1257266-48-0)
- 5-ethyl-1,2-oxazole-4-carboxylic acid (CAS 134541-03-0)
- 2-ethyl-1,3-oxazole-4-carboxylic acid (CAS 75395-42-5)
- 2-methyl-oxazole-4-carboxylic acid methyl ester 2-methyl-oxazole-4-carboxylic aicd methyl ester 4-methyl-3,5-oxazolecarboxylic acid methyl ester 4-oxazolecarboxylic acid, 2-methyl-, methyl ester 4-oxazolecarboxylicacid,2-methyl-,methylester(9ci) 85806-67-3 Methyl 2-methyloxazole-4-carboxylate methyl 2-methyl-1,3-oxazole-4-carboxylate methyl-4-methyl-3,5-oxazolecarboxylate (CAS 85806-67-3)
- 2-Methyl-1,3-oxazole-4-carbonyl chloride (CAS 62348-22-5)
- 914637-76-6 5-Methyl-1,3-oxazole-4-carbonyl chloride MFCD08056322 (CAS 914637-76-6)
- 5-Methyl-1,3-oxazole-4-carbohydrazide (CAS 170959-36-1)
- Ethyl Oxazole-5-carboxylate (CAS 118994-89-1)
Recommended Standards
- 4-Methylpyrido[3,4-d]pyrimidine (CAS 51752-73-9)
- 4-Phenyloxazole (CAS 20662-89-9)
- 4-Methylpyrido[3,2-d]pyrimidine (CAS 51674-88-5)
- 5-(hydroxymethyl)-1H-pyrrole-2-carboxylic acid (CAS 98140-76-2)
- Benzyl 1-benzylpiperazine-2-carboxylate (CAS 1253226-48-0)
- (2,4-Dimethyl-6-propionylpyridin-3-yl)boronic acid (CAS 2862000-94-8)
- Ethyl 5-(2-chlorophenyl)isoxazole-4-carboxylate (CAS 76344-89-3)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-methylhex-4-enoic acid (CAS 914486-08-1)
- 1-[(3-fluorophenyl)methyl]cyclopropane-1-carboxylic acid (CAS 1439902-29-0)
- 3-Amino-4-bromobenzofuran-2-carboxylic acid (CAS 1781820-33-4)
- (Z)-5-Methylhex-3-enoic acid (CAS 65974-51-8)
- 6-Ethynyl-N-methylquinolin-2-amine (CAS 1956354-68-9)
- Landiolol Impurity 63 (CAS CATO-C4X-262162)
- D-β-Asp9-Tirzepatide (CAS CATO-CPTD788932)
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