Ethyl 6-amino-4-(4-methoxyphenyl)-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carboxylate CAS 448229-93-4
| CAS No. | 448229-93-4 |
| Molecular Formula | C17H19N3O4 |
| Molecular Weight | 329.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl 6-amino-4-(4-methoxyphenyl)-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carboxylate (CAS 448229-93-4) is a high-purity analytical reference standard with the molecular formula C17H19N3O4 and a molecular weight of 329.35 g/mol.
The molecular framework of Ethyl 6-amino-4-(4-methoxyphenyl)-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carboxylate (C17H19N3O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Ethyl 6-amino-4-(4-methoxyphenyl)-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carboxylate 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 | C17H19N3O4 |
| Molecular Weight | 329.35 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- H-Pro-Val-Asp-OH (H-4815.0250) (CAS 79366-75-9)
- 4-Bromo-7-chloro-6-methoxy-2-methylquinoline (CAS 1378260-27-5)
- (2-Propoxyphenyl)thiourea (CAS 90873-07-7)
- N-(4-(((3-(trifluoromethyl)phenyl)thio)methyl)phenyl)thiophene-2-carboxamide (CAS 338398-68-8)
- Methyl 2-(benzo[d][1,3]dioxol-5-yl)-2,3-dihydrothiazole-4-carboxylate (CAS 1207175-02-7)
- (1-Methyl-1H-imidazol-2-yl)(1-phenylcyclopropyl)methanamine dihydrochloride (CAS 2138010-63-4)
- 5-bromo-2-methyl-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1111638-01-7)
- tert-Butyl (7S,8aS)-rel-7-amino-octahydropyrrolo[1,2-a]piperazine-2-carboxylate (CAS 1214629-88-5)
- Methyl 4-acetylthiazole-2-carboxylate (CAS 1644548-96-8)
- 4-(2-Chloropyrimidin-4-yl)aniline (CAS 1292318-07-0)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com