4H-Cyclopenta[b]quinoxaline CAS 269-66-9

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4H-Cyclopenta[b]quinoxaline.

4H-Cyclopenta[b]quinoxaline (CAS 269-66-9) is a high-purity analytical reference standard with the molecular formula C11H8N2 and a molecular weight of 168.19 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 4H-Cyclopenta[b]quinoxaline is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 168.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 4H-Cyclopenta[b]quinoxaline meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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