(4-Amino-3-methylthieno[2,3-c]isothiazol-5-yl)(phenyl)methanone CAS 343372-93-0

Purity 97%+In StockPharmaceutical Standards
CAS No.343372-93-0
Molecular FormulaC13H10N2OS2
Molecular Weight274.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4-Amino-3-methylthieno[2,3-c]isothiazol-5-yl)(phenyl)methanone CAS 343372-93-0 chemical structure

Description

The occurrence of (4-Amino-3-methylthieno[2,3-c]isothiazol-5-yl)(phenyl)methanone is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies (4-Amino-3-methylthieno[2,3-c]isothiazol-5-yl)(phenyl)methanone (CAS 343372-93-0), a certified reference material (molecular formula C13H10N2OS2, MW 274.36 g/mol) for analytical method development and quality control.

Structurally, (4-Amino-3-methylthieno[2,3-c]isothiazol-5-yl)(phenyl)methanone (C13H10N2OS2) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 274.36 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC13H10N2OS2
Molecular Weight274.36 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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms2
Sulfur Atoms2

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