Methyl 4-methylpyrazolo[1,5-a]pyrazine-3-carboxylate CAS 53902-65-1
| CAS No. | 53902-65-1 |
| Molecular Formula | C9H9N3O2 |
| Molecular Weight | 191.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H9N3O2, Methyl 4-methylpyrazolo[1,5-a]pyrazine-3-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 191.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Methyl 4-methylpyrazolo[1,5-a]pyrazine-3-carboxylate (CAS 53902-65-1) is a high-purity analytical reference standard with the molecular formula C9H9N3O2 and a molecular weight of 191.19 g/mol.
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 Methyl 4-methylpyrazolo[1,5-a]pyrazine-3-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 | C9H9N3O2 |
| Molecular Weight | 191.19 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 DMSO, DMF, methanol |
| 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 | 3 |
Related Methyl Standards
- Methyl 5-methylpyrazolo[1,5-b]pyridazine-3-carboxylate (CAS 1427502-48-4)
- Methyl 5-methylpyrazolo[1,5-a]pyrimidine-7-carboxylate (CAS 916211-75-1)
- Methyl 7-methylpyrazolo[1,5-a]pyrimidine-5-carboxylate (CAS 916211-74-0)
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- Methyl 7-methylpyrazolo[1,5-a]pyridine-3-carboxylate (CAS 888735-64-6)
Recommended Standards
- Methyl 4-amino-1H-indazole-6-carboxylate (CAS 885518-51-4)
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- Methyl 5-amino-1H-indazole-3-carboxylate (CAS 660411-95-0)
- 1-Chloro-6,7-dimethylisoquinoline (CAS 1368924-44-0)
- Hexarelin(2-6)-OH·TFA (CAS CATO-C4X-28913)
- N-cyclobutylisoquinolin-5-amine (CAS 1247907-40-9)
- 3-Hydroxy-7,8,3'-trimethoxyflavone (CAS 1017060-12-6)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-(4-methylpiperidin-1-yl)thiophen-2-yl)boronate (CAS 2223042-35-9)
- 2-Isopropyl-5-methoxypyridazin-3(2H)-one (CAS 2060049-34-3)
- Amlodipine Impurity 135 (CAS CATO-C4X-1095135)
- 1-(2-Bromoethyl)-2-fluoro-4-(trifluoromethyl)benzene (CAS 1027215-80-0)
- (R)-4-Phenyl-3-propionyl-2-oxazolidinone (CAS 160695-26-1)
- Semaglutide impurity 100 (CAS CATO-C4X-2226100)
Why CATO?
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