Ethyl 3-cyano-7-methyl-6-oxo-6H-pyrazolo[1,5-a][1,3]diazepine-8-carboxylate CAS 77936-97-1
| CAS No. | 77936-97-1 |
| Molecular Formula | C12H10N4O3 |
| Molecular Weight | 258.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 258.23 g/mol gives Ethyl 3-cyano-7-methyl-6-oxo-6H-pyrazolo[1,5-a][1,3]diazepine-8-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl 3-cyano-7-methyl-6-oxo-6H-pyrazolo[1,5-a][1,3]diazepine-8-carboxylate (CAS 77936-97-1) is a high-purity analytical reference standard with the molecular formula C12H10N4O3 and a molecular weight of 258.23 g/mol.
The molecular framework of Ethyl 3-cyano-7-methyl-6-oxo-6H-pyrazolo[1,5-a][1,3]diazepine-8-carboxylate (C12H10N4O3) is characterized by an amino-acid-derived structure, 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. 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).
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 Ethyl 3-cyano-7-methyl-6-oxo-6H-pyrazolo[1,5-a][1,3]diazepine-8-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 | C12H10N4O3 |
| Molecular Weight | 258.23 g/mol |
| Appearance | Pale yellow to 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 4 |
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Recommended Standards
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- 2-((4-Chloropyrimidin-2-yl)amino)acetic acid (CAS 1159822-33-9)
- Roxatidine Impurity 31 (CAS CATO-C4X-121331)
- (<I>R</I>)-(+)-2-[2-(diphenylphosphine)phenyl]-4-isopropyl-2-oxazoline (CAS 164858-78-0)
- 2-cyclopropyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine dihydrochloride (CAS 1803589-81-2)
- (4-Bromonaphthalen-2-yl)boronic acid (CAS 1519009-93-8)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com