Ethyl 4-hydroxypyrazolo[1,5-a]pyridine-3-carboxylate CAS 55899-22-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 55899-22-4 |
| Molecular Formula | C10H10N2O3 |
| Molecular Weight | 206.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 4-hydroxypyrazolo[1,5-a]pyridine-3-carboxylate (CAS 55899-22-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H10N2O3. Molecular weight: 206.20 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H10N2O3 |
| Molecular Weight | 206.20 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.) | 1972 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- Ethyl 5-hydroxypyrazolo[1,5-a]pyridine-3-carboxylate (CAS 1396762-13-2)
- Ethyl 6-hydroxypyrazolo[1,5-a]pyridine-3-carboxylate (CAS 1396762-29-0)
- Ethyl 5-hydroxypyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 1026456-01-8)
- 7-Ethyl-2-hydroxypyrazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 1049873-68-8)
- Ethyl 7-hydroxypyrazolo[1,5-a]pyrimidine-5-carboxylate (CAS 672325-14-3)
- Ethyl 7-hydroxypyrazolo[1,5-a]pyrimidine-6-carboxylate (CAS 43024-61-9)
- 5-Methyl-7-hydroxypyrazolo-[1,5-a]pyrimidine-3-thiocarboxamide (CAS 1823549-91-2)
- 7-Hydroxypyrazolo[5,1-c]pyrido[4,3-e][1,2,4]-triazin-6(7H)-one (CAS 1211170-88-5)
Recommended Standards
- ethyl 4-amino-5-cyano-2-hydroxybenzoate (CAS 72817-97-1)
- Ethyl 4-methylpyrazolo[5,1-c][1,2,4]triazine-3-carboxylate (CAS 6726-54-1)
- Ethyl 3-methyl-[1,2]oxazolo[5,4-b]pyridine-6-carboxylate (CAS 950143-81-4)
- 2-(2-Trityl-2H-tetrazol-5-yl)phenylboronic Acid (CAS 143722-25-2)
- 2-Amino-3-(6-chloro-2,3-difluorophenyl)propanoic acid (CAS 1706428-57-0)
- 3,3,6-trimethyl-2,3,4,9-tetrahydro-1H-carbazole (CAS 26526-24-9)
- 1-(3-Chloro-6-methylpyridin-2-yl)ethanone (CAS 1256790-48-3)
- 1-Ethyl-4-methylquinolin-1-ium iodide (CAS 605-59-4)
- 2,6-Diamino-5-(7,7,7-trifluoro-6-oxoheptyl)pyrimidin-4(1H)-one (CAS 647831-32-1)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
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 13829788188 / jacky.chen@cato-chem.com