2-(4-Nitrophenyl)oxazole-4-carboxylic acid CAS 1457898-81-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1457898-81-5 |
| Molecular Formula | C10H6N2O5 |
| Molecular Weight | 234.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(4-Nitrophenyl)oxazole-4-carboxylic acid (CAS 1457898-81-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H6N2O5. Molecular weight: 234.17 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H6N2O5 |
| Molecular Weight | 234.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 2 |
Related Nitrophenyl Standards
- 3-(3-Nitrophenyl)isoxazole-5-carboxylic acid (CAS 1022083-09-5)
- 2-(2-Nitrophenyl)oxazole-4-carboxylic acid (CAS 1220040-17-4)
- 5-(2-Nitrophenyl)isoxazole-3-carboxylic Acid (CAS 1232028-11-3)
- 1-(2-Nitrophenyl)-1H-1,2,3-triazole-5-carboxylic acid (CAS 1266982-78-8)
- 1-(4-Nitrophenyl)-1H-1,2,3-triazole-5-carboxylic acid (CAS 15966-70-8)
- 1-(3-Nitrophenyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 944905-90-2)
- 1-(4-Nitrophenyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 4600-06-0)
- 3-(4-Nitrophenyl)isoxazole-5-carboxylic acid (CAS 899820-05-4)
Recommended Standards
- 2-((3,4,5-Trifluorophenoxy)methyl)-1,3-dioxolane (CAS 1443353-94-3)
- 2-Methoxy-1-(4-(trifluoromethoxy)phenyl)ethan-1-one (CAS 1476729-69-7)
- Ethyl 2-(2,3,4-trifluorophenoxy)acetate (CAS 1443341-77-2)
- 3,5-Difluoro-4-methoxyphenylboronic Acid Pinacol Ester (CAS 890839-37-9)
- 1-(2-Methylquinolin-4-yl)propan-2-one (CAS 928164-17-4)
- 1-(2-Fluoroethyl)-3-methyl-N-((3-methyl-1-propyl-1H-pyrazol-5-yl)methyl)-1H-pyrazol-4-amine hydrochloride (CAS 1856090-73-7)
- 737-86-0 XT2MSO57QW Pyridoxal isonicotinoyl hydrazone 4-Pyridinecarboxylic acid, ((3-hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinyl)methylene)hydrazide BRN 3685006 Isonicotinic acid, hydrazide, hydrazone with pyridoxal Isonicotinic acid, ((3-hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridyl)methylene)hydrazide NSC 77674 PIH UNII-XT2MSO57QW (CAS 737-86-0)
- Nicardipine Impurity 54 (CAS CATO-C4X-171054)
- 4-Iodo-1,1':4',1''-terphenyl (CAS 1762-85-2)
- MCH-Gene-Overprinted-Polypeptide-14 (rat) (H-4746.0500) (CAS 182917-44-8)
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