5,7-Dibromo-3-iodo-1H-pyrazolo[4,3-b]pyridine CAS 1956335-38-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1956335-38-8
Molecular FormulaC6H2Br2IN3
Molecular Weight402.81 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5,7-Dibromo-3-iodo-1H-pyrazolo[4,3-b]pyridine CAS 1956335-38-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 402.81 g/mol gives 5,7-Dibromo-3-iodo-1H-pyrazolo[4,3-b]pyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5,7-Dibromo-3-iodo-1H-pyrazolo[4,3-b]pyridine (CAS 1956335-38-8) is a high-purity analytical reference standard with the molecular formula C6H2Br2IN3 and a molecular weight of 402.81 g/mol.

5,7-Dibromo-3-iodo-1H-pyrazolo[4,3-b]pyridine (C6H2Br2IN3) contains a nitrile group, bromine/iodine 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. 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), 5,7-Dibromo-3-iodo-1H-pyrazolo[4,3-b]pyridine 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 FormulaC6H2Br2IN3
Molecular Weight402.81 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at room temperature, 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Halogen ContentBr/I-containing
Nitrogen Atoms3

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