5-Methyl-3-(3-nitrophenyl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid CAS 1326815-05-7
| CAS No. | 1326815-05-7 |
| Molecular Formula | C11H10N2O5 |
| Molecular Weight | 250.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Methyl-3-(3-nitrophenyl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid (C11H10N2O5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 5-Methyl-3-(3-nitrophenyl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 1326815-05-7), a certified reference material (molecular formula C11H10N2O5, MW 250.21 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Methyl-3-(3-nitrophenyl)-4,5-dihydro-1,2-oxazole-5-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.
Physical & Chemical Properties
| Molecular Formula | C11H10N2O5 |
| Molecular Weight | 250.21 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.) | 1991 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 5-Methyl-3-(2-nitrophenyl)-4,5-dihydroisoxazole-5-carboxylic acid (CAS 1326814-66-7)
- 2-(3-(4-Nitrophenyl)acrylamido)acetic acid (CAS 150013-03-9)
- 1-(3-Nitrophenyl)-5-oxo-3-pyrrolidinecarboxylic acid (CAS 345297-65-6)
- 1-(4-Nitrophenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 834894-65-4)
- 4-((2-Methyl-4-nitrophenyl)amino)-4-oxobut-2-enoic acid (CAS 301312-79-8)
- 4-((4-Methyl-3-nitrophenyl)amino)-4-oxobut-2-enoic acid (CAS 200394-19-0)
- 5-Methyl-3-(4-nitrophenyl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 927183-52-6)
- 4-(2-Nitrophenyl)thiazole-2-carboxylic Acid (CAS 1141669-77-3)
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- Semaglutide impurity 196 (CAS CATO-C4X-2226196)
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