5-tert-Butyl 2-ethyl 6,7-dihydropyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylate CAS 1250443-97-0
| CAS No. | 1250443-97-0 |
| Molecular Formula | C14H21N3O4 |
| Molecular Weight | 295.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-tert-Butyl 2-ethyl 6,7-dihydropyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-tert-Butyl 2-ethyl 6,7-dihydropyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylate (CAS 1250443-97-0), a certified reference material (molecular formula C14H21N3O4, MW 295.33 g/mol) for analytical method development and quality control.
The molecular framework of 5-tert-Butyl 2-ethyl 6,7-dihydropyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylate (C14H21N3O4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 5-tert-Butyl 2-ethyl 6,7-dihydropyrazolo[1,5-a]pyrazine-2,5(4H)-dicarboxylate 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 | C14H21N3O4 |
| Molecular Weight | 295.33 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
Recommended Standards
- Ethyl 2-amino-2-(6-((tert-butoxycarbonyl)amino)pyridin-2-yl)acetate (CAS 1246550-38-8)
- 7-tert-Butyl 3-ethyl 5,6-dihydroimidazo[1,5-a]pyrazine-3,7(8H)-dicarboxylate (CAS 1251016-13-3)
- 5-(1,1-Dimethylethyl)-2-hydroxy-α,α-dimethyl-4-nitro-benzeneacetic Acid Methyl Ester (CAS 1246213-34-2)
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- Phosphoric Acid-d3 (85% w/w in D2O) (CAS 14335-33-2)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
Why CATO?
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