Ethyl 4-amino-1-methyl-6-oxo-2,6-dihydro-1H-pyrazolo[3,4-b]pyridine-5-carboxylate CAS 66857-98-5
| CAS No. | 66857-98-5 |
| Molecular Formula | C10H12N4O3 |
| Molecular Weight | 236.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl 4-amino-1-methyl-6-oxo-2,6-dihydro-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 66857-98-5) is a high-purity analytical reference standard with the molecular formula C10H12N4O3 and a molecular weight of 236.23 g/mol.
Ethyl 4-amino-1-methyl-6-oxo-2,6-dihydro-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (C10H12N4O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H12N4O3 |
| Molecular Weight | 236.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 4 |
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Recommended Standards
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- Ethyl 2-(2,6-diamino-9H-purin-9-yl)acetate (CAS 202343-69-9)
- N-((2-Oxo-3-(pyrimidin-2-yl)oxazolidin-5-yl)methyl)acetamide (CAS 824933-24-6)
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- 2-(4-(tert-Butoxycarbonyl)piperazin-1-yl)-2-(4-(trifluoromethyl)phenyl)aceticacid (CAS 885274-28-2)
- 3-Methyl-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyridine-8-carboxylic acid (CAS 1190392-06-3)
- Diethyl 1-amino-1H-pyrrole-2,3-dicarboxylate (CAS 737753-87-6)
- 1-(4-Isopropylphenyl)butane-1,3-dione (CAS 29681-96-7)
- 5-Methyl-4-oxo-5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a][1,4]diazepine-2-carboxylic acid (CAS 1285251-59-3)
- Ethyl 6-(phenylcarbamoyl)-4-(trifluoromethyl)pyridine-2-carboxylate (CAS 1210182-96-9)
- Prop-2-yn-1-yl 3-ethoxy-4-((2-fluorobenzyl)oxy)-5-iodobenzoate (CAS 1706439-89-5)
- 4-hydroxy-1H-pyrazolo[3,4-b]pyridine-6-carboxylic acid (CAS 1781790-67-7)
- Ac, Gastrin Releasing Peptide (20-27), porcine (CAS 77714-20-6)
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