2H-Cyclopenta[3,4]pyrazolo[1,5-a]pyrazine CAS 117024-64-3

Purity 97%+In StockPharmaceutical Standards
CAS No.117024-64-3
Molecular FormulaC9H7N3
Molecular Weight157.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2H-Cyclopenta[3,4]pyrazolo[1,5-a]pyrazine CAS 117024-64-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 157.17 g/mol gives 2H-Cyclopenta[3,4]pyrazolo[1,5-a]pyrazine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2H-Cyclopenta[3,4]pyrazolo[1,5-a]pyrazine (CAS 117024-64-3), molecular formula C9H7N3 and molecular weight 157.17 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2H-Cyclopenta[3,4]pyrazolo[1,5-a]pyrazine (C9H7N3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. 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 2H-Cyclopenta[3,4]pyrazolo[1,5-a]pyrazine 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 FormulaC9H7N3
Molecular Weight157.17 g/mol
AppearancePale yellow to yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms3

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