7-Bromo-5H-pyrrolo[2,3-b]pyrazine-3-carbonitrile CAS 2781103-87-3

Purity 97%+In StockPharmaceutical Standards
CAS No.2781103-87-3
Molecular FormulaC7H3BrN4
Molecular Weight223.03 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Bromo-5H-pyrrolo[2,3-b]pyrazine-3-carbonitrile CAS 2781103-87-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 223.03 g/mol gives 7-Bromo-5H-pyrrolo[2,3-b]pyrazine-3-carbonitrile distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 7-Bromo-5H-pyrrolo[2,3-b]pyrazine-3-carbonitrile (CAS 2781103-87-3), a certified reference material (molecular formula C7H3BrN4, MW 223.03 g/mol) for analytical method development and quality control.

7-Bromo-5H-pyrrolo[2,3-b]pyrazine-3-carbonitrile (C7H3BrN4) contains a nitrile group, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 7-Bromo-5H-pyrrolo[2,3-b]pyrazine-3-carbonitrile 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 FormulaC7H3BrN4
Molecular Weight223.03 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2003
Halogen ContentBr-containing
Nitrogen Atoms4

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