2,6-Diethyl-5-thioxo-5,6-dihydro-2H-pyrazolo[4,3-d]pyrimidin-7(4H)-one CAS 828299-89-4

Purity 97%+In StockPharmaceutical Standards
CAS No.828299-89-4
Molecular FormulaC9H12N4OS
Molecular Weight224.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,6-Diethyl-5-thioxo-5,6-dihydro-2H-pyrazolo[4,3-d]pyrimidin-7(4H)-one CAS 828299-89-4 chemical structure

Description

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 2,6-Diethyl-5-thioxo-5,6-dihydro-2H-pyrazolo[4,3-d]pyrimidin-7(4H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 224.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

CATO supplies 2,6-Diethyl-5-thioxo-5,6-dihydro-2H-pyrazolo[4,3-d]pyrimidin-7(4H)-one (CAS 828299-89-4), a certified reference material (molecular formula C9H12N4OS, MW 224.28 g/mol) for analytical method development and quality control.

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), 2,6-Diethyl-5-thioxo-5,6-dihydro-2H-pyrazolo[4,3-d]pyrimidin-7(4H)-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 FormulaC9H12N4OS
Molecular Weight224.28 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Nitrogen Atoms4
Sulfur Atoms1

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