Ethyl 4,6-dimethylpyrazolo[1,5-a]pyrazine-2-carboxylate, 97% CAS 1449598-76-8
| CAS No. | 1449598-76-8 |
| Molecular Formula | C11H13N3O2 |
| Molecular Weight | 219.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 4,6-dimethylpyrazolo[1,5-a]pyrazine-2-carboxylate, 97%.
Ethyl 4,6-dimethylpyrazolo[1,5-a]pyrazine-2-carboxylate, 97% (CAS 1449598-76-8), molecular formula C11H13N3O2 and molecular weight 219.24 g/mol, is a CATO reference standard with documented purity and traceability.
Ethyl 4,6-dimethylpyrazolo[1,5-a]pyrazine-2-carboxylate, 97% (C11H13N3O2) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C11H13N3O2 |
| Molecular Weight | 219.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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.) | 1992 |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- Ethyl 2,5-dimethylpyrazolo[1,5-a]pyrimidine-7-carboxylate (CAS 1193390-15-6)
- Ethyl 5,7-dimethylpyrazolo[1,5-a]pyrimidine-2-carboxylate (CAS 1263285-54-6)
- ethyl 2,7-dimethylpyraZolo[1,5-a]pyrimidine-6-carboxylate (CAS 162286-54-6)
- 3-(5,7-Dimethylpyrazolo[1,5-a]pyrimidin-6-yl)propanoic acid (CAS 832135-73-6)
- Ethyl 2,4-dimethylpyrazolo[1,5-a]pyrazine-3-carboxylate (CAS 2414325-51-0)
- Ethyl 5,7-Dimethylpyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 52664-01-4)
- Ethyl 2,6-Dimethylpyrazolo[1,5-a]pyridine-3-carboxylate (CAS 1260382-33-9)
- 2-({5,7-dimethylpyrazolo[1,5-a]pyrimidin-2-yl}oxy)acetic acid (CAS 1855906-83-0)
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