3-Isopropylisothiazolo[5,4-d]pyrimidin-4(5H)-one CAS 1936090-12-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1936090-12-8
Molecular FormulaC8H9N3OS
Molecular Weight195.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Isopropylisothiazolo[5,4-d]pyrimidin-4(5H)-one CAS 1936090-12-8 chemical structure

Description

3-Isopropylisothiazolo[5,4-d]pyrimidin-4(5H)-one (CAS 1936090-12-8) is a high-purity analytical reference standard with the molecular formula C8H9N3OS and a molecular weight of 195.24 g/mol.

3-Isopropylisothiazolo[5,4-d]pyrimidin-4(5H)-one (C8H9N3OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC8H9N3OS
Molecular Weight195.24 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.)1996
Nitrogen Atoms3
Sulfur Atoms1

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