1-(3-Bromo-7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)ethan-1-one CAS 2387600-66-8

Purity 97%+In StockPharmaceutical Standards
CAS No.2387600-66-8
Molecular FormulaC9H7BrClN3O
Molecular Weight288.53 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(3-Bromo-7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)ethan-1-one CAS 2387600-66-8 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(3-Bromo-7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)ethan-1-one.

1-(3-Bromo-7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)ethan-1-one (CAS 2387600-66-8) is a high-purity analytical reference standard with the molecular formula C9H7BrClN3O and a molecular weight of 288.53 g/mol.

1-(3-Bromo-7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)ethan-1-one (C9H7BrClN3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. 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), 1-(3-Bromo-7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)ethan-1-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 FormulaC9H7BrClN3O
Molecular Weight288.53 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1999
Halogen ContentCl/Br-containing
Nitrogen Atoms3

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