| CAS No. | 866133-59-7 |
| Molecular Formula | C21H19ClN4O3 |
| Molecular Weight | 410.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures Ethyl 1-(4-chlorophenyl)-4-((furan-2-ylmethyl)amino)-3-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Ethyl 1-(4-chlorophenyl)-4-((furan-2-ylmethyl)amino)-3-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 866133-59-7), molecular formula C21H19ClN4O3 and molecular weight 410.85 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H19ClN4O3, Ethyl 1-(4-chlorophenyl)-4-((furan-2-ylmethyl)amino)-3-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate 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 410.85 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
| Molecular Formula | C21H19ClN4O3 |
| Molecular Weight | 410.85 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |