(1,1-Dioxido-4-phenyl-4H-benzo[b][1,4]thiazin-2-yl)(pyrrolidin-1-yl)methanone CAS 1189695-20-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1189695-20-2
Molecular FormulaC19H18N2O3S
Molecular Weight354.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(1,1-Dioxido-4-phenyl-4H-benzo[b][1,4]thiazin-2-yl)(pyrrolidin-1-yl)methanone CAS 1189695-20-2 chemical structure

Description

(1,1-Dioxido-4-phenyl-4H-benzo[b][1,4]thiazin-2-yl)(pyrrolidin-1-yl)methanone (CAS 1189695-20-2) is a high-purity analytical reference standard with the molecular formula C19H18N2O3S and a molecular weight of 354.42 g/mol.

Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, (1,1-Dioxido-4-phenyl-4H-benzo[b][1,4]thiazin-2-yl)(pyrrolidin-1-yl)methanone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 354.42 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).

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 FormulaC19H18N2O3S
Molecular Weight354.42 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms2
Sulfur Atoms1

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