6-Amino-4-(3-ethoxy-4-hydroxyphenyl)-3-methyl-1-phenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile CAS 333341-50-7
| CAS No. | 333341-50-7 |
| Molecular Formula | C22H20N4O3 |
| Molecular Weight | 388.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
6-Amino-4-(3-ethoxy-4-hydroxyphenyl)-3-methyl-1-phenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (CAS 333341-50-7), molecular formula C22H20N4O3 and molecular weight 388.42 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6-Amino-4-(3-ethoxy-4-hydroxyphenyl)-3-methyl-1-phenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (C22H20N4O3) is characterized by a steroid 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 6-Amino-4-(3-ethoxy-4-hydroxyphenyl)-3-methyl-1-phenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile 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 | C22H20N4O3 |
| Molecular Weight | 388.42 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
Related Amino Standards
- 2-Amino-4-(3,4,5-trimethoxyphenyl)-4H-benzo[h]chromene-3-carbonitrile (CAS 339062-56-5)
- 1-Amino-4-(benzo[d]thiazol-2-ylthio)anthracene-9,10-dione (CAS 3767-68-8)
- 6-Amino-1-phenyl-4-(thiophen-2-yl)-3-(trifluoromethyl)-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (CAS 327169-68-6)
- 2-Amino-3-[(E)-{[4-(benzyloxy)phenyl]methylidene}amino]-6-(trifluoromethyl)-3,4-dihydropyrimidin-4-one (CAS 866145-95-1)
- Ethyl 2-amino-6-(hydroxymethyl)-4-(2-nitrophenyl)-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carboxylate (CAS 924832-27-9)
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Recommended Standards
- 4,4'-(1,10-Phenanthroline-3,8-diyl)dibenzaldehyde (CAS 2368860-32-4)
- Ethyl 2-((4-(3-fluoro-4-methoxyphenyl)-5-methylpyrimidin-2-yl)amino)thiazole-4-carboxylate (CAS 861211-24-7)
- 4-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)-N-(2-methoxyphenyl)butanamide (CAS 301157-02-8)
- Fmoc-(R)-3-Amino-3-(3-pyridyl)-propionic acid (CAS 511272-43-8)
- 3,3-Dimethyl-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one (CAS 2155874-58-9)
- N1-Cyclopropyl-N2-(4-(trifluoromethoxy)phenyl)oxalamide (CAS 941939-12-4)
- Propane-1,3-diyl dibenzoate (CAS 2451-86-7)
- ethyl 5-oxo-4H-1,2,4-oxadiazole-3-carboxylate (CAS 42526-30-7)
- 3,4,9,9A-tetrahydropyrazino[2,1-c][1,4]thiazin-8(1H)-amine (CAS 100070-71-1)
- 1-chloro-5-methoxy-4-methyl-2-nitrobenzene (CAS 97655-37-3)
- 4-Methoxy-2-(2-methoxyethoxy)benzoic acid (CAS 87359-71-5)
- 6-Bromo-2-(trifluoromethyl)-1,2,3,4-tetrahydroquinoline (CAS 1391072-81-3)
- 2-(1,2-Diphenyl-1H-indol-3-yl)ethan-1-amine hydrochloride (CAS 1052537-40-2)
- Insulin Degludec Impurity 11 (CAS CATO-C4X-215711)
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