4-(4-Chlorophenyl)-3,7,7-trimethyl-2,4,6,7,8,9-hexahydro-5H-pyrazolo[3,4-b]quinolin-5-one CAS 370588-24-2
| CAS No. | 370588-24-2 |
| Molecular Formula | C19H20ClN3O |
| Molecular Weight | 341.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-Chlorophenyl)-3,7,7-trimethyl-2,4,6,7,8,9-hexahydro-5H-pyrazolo[3,4-b]quinolin-5-one (CAS 370588-24-2), molecular formula C19H20ClN3O and molecular weight 341.83 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H20ClN3O, 4-(4-Chlorophenyl)-3,7,7-trimethyl-2,4,6,7,8,9-hexahydro-5H-pyrazolo[3,4-b]quinolin-5-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 341.83 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C19H20ClN3O |
| Molecular Weight | 341.83 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 4-(4-Chlorobenzyl)-7-isopropoxy-6-methoxyisoquinoline (CAS 88708-12-7)
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- 4-(4-Chlorobenzyl)-6-isopropoxy-7-methoxyisoquinoline (CAS 88708-11-6)
- 4-(4-Chlorobenzyl)-3-ethyl-6,7-dimethoxyisoquinoline (CAS 62334-41-2)
- 1-amino-2-methyl-1-{pyrrolo[2,1-f][1,2,4]triazin-5-yl}propan-2-ol (CAS 2092766-03-3)
- (R)-3-[((S)-2-Amino-propionyl)-methyl-amino]-pyrrolidine-1-carboxylic acid tert-butyl ester (CAS 1354025-88-9)
- cis-4-(4-Chlorobenzoyl)cyclohexane-1-carboxylic acid (CAS 945362-37-8)
- 2-Bromo-4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-1-methoxybenzene (CAS 1133116-37-6)
- H-Phe(3,4-DiCl)-OMe.HCl (CAS 173522-95-7)
- 3-(2-Fluoro-4-nitrophenyl)-1-methyl-1h-pyrazol-5-amine (CAS 1281656-68-5)
- 2-(2-(2-Hydroxyethoxy)ethoxy)ethyl acetate (CAS 52337-72-1)
- 3,4-Difluoro-2-methylbenzenesulfonyl chloride (CAS 1806293-66-2)
- 5-methyl-1H-pyrrolo[2,3-b]pyridine-4-carboxylic acid (CAS 1638767-87-9)
- (D-His1)-Exenatide trifluoroacetate salt (CAS 1678417-09-8)
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