Ethyl 7-Oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylate CAS 29274-18-8
| CAS No. | 29274-18-8 |
| Molecular Formula | C9H9N3O3 |
| Molecular Weight | 207.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 7-Oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylate (CAS 29274-18-8), molecular formula C9H9N3O3 and molecular weight 207.19 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Ethyl 7-Oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 207.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Ethyl 7-Oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-6-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.
Physical & Chemical Properties
| Molecular Formula | C9H9N3O3 |
| Molecular Weight | 207.19 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.) | 1965 |
| Nitrogen Atoms | 3 |
Recommended Standards
- Ethyl 7-oxo-4,7-dihydro-1H-pyrazolo[4,3-b]pyridine-6-carboxylate (CAS 59376-25-9)
- Methyl (5-oxo-5,8-dihydroimidazo[1,2-a]pyrimidin-7-yl)acetate (CAS 940995-70-0)
- Ethyl 7-hydroxypyrazolo[1,5-a]pyrimidine-6-carboxylate (CAS 43024-61-9)
- Methyl 2-(6-amino-9H-purin-9-yl)acetate (CAS 23124-10-9)
- CHOLESTAN-3β, 5α-DIOL (CAS 3347-60-2)
- 4-(Methylsulfonyl)-2-pyrrolidinobenzoic Acid (CAS 1197193-17-1)
- methyl 3-amino-2,2,3-trimethylbutanoate (CAS 90886-53-6)
- 5-Bromobenzo[b]thiophene-3-carbaldehyde (CAS 16296-72-3)
- Tretinoin Impurity 26 (CAS 62285-98-7)
- 3-bromoimidazo[1,5-a]pyrimidine (CAS 1823964-72-2)
- N-([1,1'-Biphenyl]-2-yl)-2-((4-ethyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 577988-98-8)
- 3-(2-Methoxyphenyl)-5,6,7,8,9,10-hexahydrocycloocta[c]pyridazine (CAS 918874-34-7)
- 2-(2-(Trifluoromethoxy)phenyl)pyrimidine-5-carboxylic acid (CAS 1261765-94-9)
- Neuropeptide Y, human (CAS 98264-90-5)
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