6-Benzyl-3-(pyridin-4-yl)-5,6-dihydro-1H-pyrazolo[4,3-g]quinazolin-7(8H)-one CAS 1695533-89-1
| CAS No. | 1695533-89-1 |
| Molecular Formula | C21H17N5O |
| Molecular Weight | 355.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 6-Benzyl-3-(pyridin-4-yl)-5,6-dihydro-1H-pyrazolo[4,3-g]quinazolin-7(8H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 355.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
6-Benzyl-3-(pyridin-4-yl)-5,6-dihydro-1H-pyrazolo[4,3-g]quinazolin-7(8H)-one (CAS 1695533-89-1) is a high-purity analytical reference standard with the molecular formula C21H17N5O and a molecular weight of 355.39 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C21H17N5O |
| Molecular Weight | 355.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 5 |
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Recommended Standards
- 2-(4-(4-Methoxyphenyl)-6-phenyl-1,3,5-triazin-2-yl)phenol (CAS 154825-62-4)
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- Methyl 1-([1,1'-biphenyl]-4-carbonyl)-1H-indole-3-carboxylate (CAS 154477-38-0)
- (1-(4-Methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-2-yl)-1H-1,2,3-triazol-4-yl)(naphthalen-2-yl)methanone (CAS 860785-20-2)
- Ethyl 5-isopropyl-2H-1,2,3-triazole-4-carboxylate (CAS 52155-95-0)
- 5-Deazaflavin (CAS 26908-38-3)
- 2-(Pyrimidin-2-ylsulfanyl)propanoic acid (CAS 919617-50-8)
- 3-(4-(Morpholinosulfonyl)phenyl)-N-(4-(trifluoromethyl)phenyl)acrylamide (CAS 1428114-07-1)
- 5-Methanesulfonyl-2-methylpyridine (CAS 1392213-58-9)
- 6-Bromo-1-methyl-1H-pyrazolo[4,3-b]pyridin-3-amine (CAS 2007915-41-3)
- 2-Chloro-4-nitrobenzhydrazide (CAS 67345-78-2)
- 4H-1-Benzothiopyran-4-one, 7-amino-2,3-dihydro-8-hydroxy-, 1,1-dioxide (CAS 2647465-22-1)
- 3-(5-Bromo-thiophen-2-yl)-3-oxo-propionitrile (CAS 71683-02-8)
- (D-His1)-Exenatide trifluoroacetate salt (CAS 1678417-09-8)
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