Ethyl 1,4-bis(4-chlorophenyl)-6-methyl-1H,4H,7H-pyrazolo[3,4-b]pyridine-5-carboxylate CAS 339100-90-2
| CAS No. | 339100-90-2 |
| Molecular Formula | C22H19Cl2N3O2 |
| Molecular Weight | 428.31 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.
CATO supplies Ethyl 1,4-bis(4-chlorophenyl)-6-methyl-1H,4H,7H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 339100-90-2), a certified reference material (molecular formula C22H19Cl2N3O2, MW 428.31 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Ethyl 1,4-bis(4-chlorophenyl)-6-methyl-1H,4H,7H-pyrazolo[3,4-b]pyridine-5-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 428.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Ethyl 1,4-bis(4-chlorophenyl)-6-methyl-1H,4H,7H-pyrazolo[3,4-b]pyridine-5-carboxylate 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 | C22H19Cl2N3O2 |
| Molecular Weight | 428.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| 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 |
Recommended Standards
- 3-Hexene-3,4-diylbis(4,1-phenylene)bis[dihydrogen (phosphate)] (CAS 522-40-7)
- N'-[(1E)-{4-[(2,4-dichlorophenyl)methoxy]phenyl}methylidene]-2-(phenylamino)acetohydrazide (CAS 329777-96-0)
- 1,4-Dibromo-2,5-bis[2-(trimethylsilyl)ethynyl]benzene (CAS 478190-79-3)
- (2S,4S)-4-(4-Bromo-2-propylphenoxy)-1-(tert-butoxycarbonyl)-2-pyrrolidinecarboxylic acid (CAS 1354484-81-3)
- 5-Chloro-N,N-dimethylpyrazole-1-sulfonamide (CAS 769937-44-2)
- 2-[(4-Chlorophenyl)methyl]-N-(3,5-dichlorophenyl)-1,3-thiazole-4-carboxamide (CAS 478030-43-2)
- 3-Fluoropropyl (1,1,1,3,3,3-hexafluoropropan-2-yl) carbonate (CAS 1980076-09-2)
- 2-[(2,2,2-trifluoroethyl)sulfanyl]ethan-1-ol (CAS 5187-61-1)
- 37267-86-0 MTK99R3UV0 Metaphosphoric acid Phosphoric acid meta EINECS 253-433-4 UNII-MTK99R3UV0 (CAS 37267-86-0)
- 5-chloro-1-(4-fluorophenyl)-3,6-dimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1011399-89-5)
- 1-(4-Nitrophenyl)propan-2-amine (CAS 13026-03-4)
- 2-(Azetidin-3-yl)-3-bromopyridine hydrochloride (CAS 1349873-33-1)
- 2-(Bromomethyl)-6-(difluoromethyl)-3-iodo-4-(trifluoromethoxy)pyridine (CAS 1804832-08-3)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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