3,7-Dibromo-5H-cyclopenta[2,1-b:3,4-b']dipyridin-5-one CAS 77213-41-3

Purity 97%+In StockPharmaceutical Standards
CAS No.77213-41-3
Molecular FormulaC11H4Br2N2O
Molecular Weight339.97 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,7-Dibromo-5H-cyclopenta[2,1-b:3,4-b']dipyridin-5-one CAS 77213-41-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 339.97 g/mol gives 3,7-Dibromo-5H-cyclopenta[2,1-b:3,4-b']dipyridin-5-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3,7-Dibromo-5H-cyclopenta[2,1-b:3,4-b']dipyridin-5-one (CAS 77213-41-3), molecular formula C11H4Br2N2O and molecular weight 339.97 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 3,7-Dibromo-5H-cyclopenta[2,1-b:3,4-b']dipyridin-5-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 339.97 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), 3,7-Dibromo-5H-cyclopenta[2,1-b:3,4-b']dipyridin-5-one 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

Molecular FormulaC11H4Br2N2O
Molecular Weight339.97 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1979
Halogen ContentBr-containing
Nitrogen Atoms2

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