N-{6-oxo-1,3-diphenyl-1H,6H-pyrano[2,3-c]pyrazol-5-yl}benzamide CAS 126940-55-4
| CAS No. | 126940-55-4 |
| Molecular Formula | C25H17N3O3 |
| Molecular Weight | 407.42 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.
N-{6-oxo-1,3-diphenyl-1H,6H-pyrano[2,3-c]pyrazol-5-yl}benzamide (CAS 126940-55-4), molecular formula C25H17N3O3 and molecular weight 407.42 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, N-{6-oxo-1,3-diphenyl-1H,6H-pyrano[2,3-c]pyrazol-5-yl}benzamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 407.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C25H17N3O3 |
| Molecular Weight | 407.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 4,4'-(9H-carbazole-3,6-diyl)dibenzoic acid (CAS 1258419-79-2)
- N-{1-[3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}-2,3-dihydro-1,4-benzodioxine-2-carboxamide (CAS 1396766-33-8)
- 1076198-55-4 N-(2-Methyl-5-nitrophenyl)-N-[4-(3-pyridinyl)-2-pyrimidinyl]carbamic Acid 1,1-Dimethylethyl Ester N-(2-Methyl-5-nitrophenyl)-N-[4-pyridin-3-yl-pyrimidin-2-yl]-t-boc (CAS 1076198-55-4)
- N,N-[(1-methyl-1H-pyrazol-4-yl)carbonimidoyl]bis-C,C-bis(phenylmethyl) ester (CAS 1610517-97-9)
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- 1-Chloro-2,3-difluoro-4-isopropoxybenzene (CAS 1881293-24-8)
- Ethyl 4-(((benzyloxy)carbonyl)amino)-3-oxobutanoate (CAS 67706-69-8)
- N-(4-(2-((3-Chlorophenyl)amino)-2-oxoethyl)thiazol-2-yl)pivalamide (CAS 69439-14-1)
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- N-((2-chloro-6-ethoxyquinolin-3-yl)methyl)cyclohexanamine (CAS 917747-89-8)
- Insulin Degludec Impurity 13 (CAS CATO-C4X-215713)
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