Ethyl 3-methyl-6-oxo-1-phenyl-1,6-dihydropyrano[2,3-c]pyrazole-5-carboxylate CAS 74414-00-9
| CAS No. | 74414-00-9 |
| Molecular Formula | C16H14N2O4 |
| Molecular Weight | 298.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 3-methyl-6-oxo-1-phenyl-1,6-dihydropyrano[2,3-c]pyrazole-5-carboxylate (C16H14N2O4) contains a flavonoid core, 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 Ethyl 3-methyl-6-oxo-1-phenyl-1,6-dihydropyrano[2,3-c]pyrazole-5-carboxylate (CAS 74414-00-9), a certified reference material (molecular formula C16H14N2O4, MW 298.29 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.
As a certified reference material (CRM), Ethyl 3-methyl-6-oxo-1-phenyl-1,6-dihydropyrano[2,3-c]pyrazole-5-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H14N2O4 |
| Molecular Weight | 298.29 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Ethyl (11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)carbamate (CAS 331246-30-1)
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- Dimethyl 4,4'-(diazene-1,2-diyl)dibenzoate (CAS 5320-91-2)
- Methyl 5-cyano-6-(2-methoxyphenoxy)-2-methylnicotinate (CAS 303146-40-9)
- 3-(4-Isobutylpiperazin-1-yl)-3-oxopropanenitrile (CAS 1498740-10-5)
- 3-(1-Methylethyl)-1H-pyrazole-4-sulfonyl chloride (CAS 1247810-30-5)
- N-(4-aminophenyl)-4-fluorobenzenesulfonamide (CAS 793727-98-7)
- Urapidil Impurity 21 (CAS CATO-C4X-192421)
- (Z)-[(4-Bromophenyl)[2-(4-chlorophenyl)cyclopropyl]methylidene]amino cyclopropanecarboxylate (CAS 338415-60-4)
- rel-(3AR,5S,7aR)-5-((pyridin-3-yloxy)methyl)octahydropyrano[3,2-b]pyrrole (CAS 1422140-79-1)
- 3-(Benzo[d]thiazol-2-ylthio)-1,1,1-trifluoropropan-2-ol (CAS 478047-19-7)
- 6-(Benzylthio)-4-(p-tolyl)-1,3,5-triazin-2(1H)-one (CAS 62460-54-2)
- 5-Fluoro-3-(piperidin-4-yl)benzo[d]isoxazole (CAS 84163-64-4)
- Semaglutide impurity 251 (CAS CATO-C4X-2226251)
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