Ethyl 4-(4-chlorophenoxy)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate CAS 439097-52-6
| CAS No. | 439097-52-6 |
| Molecular Formula | C17H16ClN3O3 |
| Molecular Weight | 345.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 4-(4-chlorophenoxy)-1,3-dimethyl-1H-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.
Ethyl 4-(4-chlorophenoxy)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 439097-52-6) is a high-purity analytical reference standard with the molecular formula C17H16ClN3O3 and a molecular weight of 345.78 g/mol.
Ethyl 4-(4-chlorophenoxy)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (C17H16ClN3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C17H16ClN3O3 |
| Molecular Weight | 345.78 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- 2-[2-(4-chlorophenoxy)acetyl]-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (CAS 1007926-86-4)
- 2-(4-(4-Chlorophenoxy)phenyl)-4-methylthiazole-5-carboxylic acid (CAS 938245-04-6)
- 5-((4-Chlorophenoxy)methyl)-N-(2-fluorophenyl)furan-2-carboxamide (CAS 445239-51-0)
- N-[2-(4-Chlorophenoxy)phenyl]-4-methyl-1-piperazinecarboxamide (CAS 69478-73-5)
- 1-(1-(4-(2-Chlorophenoxy)butyl)-1H-benzo[d]imidazol-2-yl)ethan-1-ol (CAS 853752-53-1)
- 2-((3-(4-Chlorophenoxy)-4-oxo-4h-chromen-7-yl)oxy)acetic acid (CAS 315234-25-4)
- 1-(2-(4-Chlorophenoxy)acetyl)-N-methylindoline-2-carboxamide (CAS 1100789-67-0)
- 1-(2-Chlorophenoxy)-3-(4-fluorobenzenesulfonyl)propan-2-ol (CAS 478079-91-3)
Recommended Standards
- Ethyl 2-{[2-(4-chlorophenyl)-7-methylimidazo[1,2-a]pyrimidin-5-yl]oxy}acetate (CAS 866043-18-7)
- Ethyl 4-chloro-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 227617-16-5)
- Ethyl 2-(6-chloro-2-oxo-4-phenyl-2,4-dihydro-1H-benzo[d][1,3]oxazin-1-yl)acetate (CAS 35382-76-4)
- Fmoc-β-chloro-L-alanine (CAS 212651-52-0)
- 6-Methyl-2-(phenylthio)-4-(trifluoromethyl)nicotinonitrile (CAS 478049-76-2)
- (3-Aminopyrrolidin-1-yl)(2,6-difluorophenyl)methanone hydrochloride (CAS 1595262-97-7)
- 5-Bromo-4-ethyl-2-iodoaniline (CAS 2384219-58-1)
- (8-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1-oxa-4,8-diazaspiro[4.5]Decan-4-yl)(4-nitrophenyl)methanone (CAS 338761-08-3)
- N-(2-amino-2-oxoethyl)-N-methylacrylamide (CAS 1156155-22-4)
- Rocuronium Bromide EP Impurity F (CAS 1190105-66-8)
- 1,2,4,6,7,9-Hexachlorodibenzo[b,d]furan (CAS 75627-02-0)
- 2,4,6-Trichloropyrido[3,4-d]pyrimidine (CAS 2143878-49-1)
- Pentafluorophenyl 2-(tetrahydro-2H-pyran-4-yloxy)benzoate (CAS 926921-58-6)
- D-Val23-Tirzepatide (CAS CATO-CPTD788911)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com