3-Methylisothiazolo[5,4-b]quinoline CAS 548930-76-3

Purity 97%+In StockPharmaceutical Standards
CAS No.548930-76-3
Molecular FormulaC11H8N2S
Molecular Weight200.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Methylisothiazolo[5,4-b]quinoline CAS 548930-76-3 chemical structure

Description

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.

3-Methylisothiazolo[5,4-b]quinoline (CAS 548930-76-3) is a high-purity analytical reference standard with the molecular formula C11H8N2S and a molecular weight of 200.26 g/mol.

3-Methylisothiazolo[5,4-b]quinoline (C11H8N2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

Physical & Chemical Properties

Molecular FormulaC11H8N2S
Molecular Weight200.26 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984
Nitrogen Atoms2
Sulfur Atoms1

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