11-(2-Chlorophenyl)-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one CAS 339012-03-2
| CAS No. | 339012-03-2 |
| Molecular Formula | C20H16ClN3O |
| Molecular Weight | 349.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 11-(2-Chlorophenyl)-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one.
11-(2-Chlorophenyl)-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one (CAS 339012-03-2), molecular formula C20H16ClN3O and molecular weight 349.81 g/mol, is a CATO reference standard with documented purity and traceability.
11-(2-Chlorophenyl)-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one (C20H16ClN3O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 11-(2-Chlorophenyl)-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one 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 | C20H16ClN3O |
| Molecular Weight | 349.81 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenyl Standards
- 8-(2-(4-Chlorophenyl)acetyl)-1,3-dimethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione (CAS 1040672-75-0)
- 1-[(2-Chlorophenyl)methoxy]-2-(4-methylphenyl)-1H-imidazo[4,5-b]pyridine (CAS 339027-11-1)
- 11-(4-Chlorophenyl)-5,11,12,12a-tetrahydropyrazolo[3',4':4,5]pyrido[2,1-a]isoquinolin-8(6H)-one (CAS 339012-00-9)
- 3-(2-Chlorophenyl)-5-[(E)-2-[(3,4-dimethylphenyl)amino]ethenyl]-1,2-oxazole-4-carbonitrile (CAS 320424-87-1)
- 3-(2-Chlorophenyl)-5-methyl-N-(2-morpholinoethyl)isoxazole-4-carboxamide (CAS 349130-87-6)
- 4-[(2-chlorophenyl)methylidene]-1,2,3,4-tetrahydroacridine-9-carboxylic acid (CAS 379729-48-3)
- 4-[(4-chlorophenyl)methylidene]-1,2,3,4-tetrahydroacridine-9-carboxylic acid (CAS 379728-21-9)
- n-(2-Chlorophenyl)-2-(8-methyl-2,4-dioxo-1,3-diazaspiro[4.5]decan-3-yl)acetamide (CAS 749215-81-4)
Recommended Standards
- 1-((3-Chlorobenzyl)oxy)-2-(p-tolyl)-1H-imidazo[4,5-b]pyridine (CAS 339026-90-3)
- 2-((7-Chloroquinazolin-4-yl)amino)-1-(naphthalen-2-yl)ethan-1-ol (CAS 477870-05-6)
- 2-Chloro-6-fluoro-N-(2-(3-(thiophen-2-yl)-1H-pyrazol-1-yl)ethyl)benzamide (CAS 1448071-95-1)
- 2-(2-Chloropyridin-3-yl)-1-(3-methoxybenzyl)-1H-benzo[d]imidazole (CAS 338411-22-6)
- 2-Morpholino-6-nitrooxazolo[4,5-b]pyridine (CAS 931321-16-3)
- (S)-2-(Aminomethyl)-4-methylpentanoic Acid Hydrochloride (CAS 1276055-49-2)
- (2E)-1-(2-Chlorophenyl)-3-(2,4-dichlorophenyl)prop-2-en-1-one (CAS 854835-59-9)
- 4-Iodo-N-(4-methylbenzo[d]thiazol-2-yl)benzenesulfonamide (CAS 486441-70-7)
- 5-(Chloromethyl)-3-(4-fluorophenyl)oxazolidin-2-one (CAS 1204297-74-4)
- 4-tert-Butyl-N-[(Z)-1-(methylsulfanyl)-2-nitroethenyl]aniline (CAS 866152-32-1)
- 6-Cyano-3-cyclopropoxypyridine-2-sulfonamide (CAS 1243367-85-2)
- 3-Cyclopropyl-N-isopropyl-1,2,4-oxadiazol-5-amine (CAS 1247217-43-1)
- 1,3-Dioxolane, 2,4-dimethyl-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)- (CAS 131812-67-4)
- Des-Pro-Pro-Tirzepatide (CAS CATO-CPTD788696)
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