Ethyl 5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a]azepine-2-carboxylate CAS 459157-30-3

Purity 97%+In StockPharmaceutical Standards
CAS No.459157-30-3
Molecular FormulaC11H16N2O2
Molecular Weight208.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a]azepine-2-carboxylate CAS 459157-30-3 chemical structure

Description

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.

Ethyl 5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a]azepine-2-carboxylate (CAS 459157-30-3) is a high-purity analytical reference standard with the molecular formula C11H16N2O2 and a molecular weight of 208.26 g/mol.

Based on its molecular formula C11H16N2O2, Ethyl 5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a]azepine-2-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 208.26 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).

CATO manufactures Ethyl 5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a]azepine-2-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 FormulaC11H16N2O2
Molecular Weight208.26 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms2

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