3-(2,5,5-Trimethyl-1,3-dioxan-2-yl)thiophene-2-sulfonamide CAS 138890-87-6

Purity 97%+In StockPharmaceutical Standards
CAS No.138890-87-6
Molecular FormulaC11H17NO4S2
Molecular Weight291.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(2,5,5-Trimethyl-1,3-dioxan-2-yl)thiophene-2-sulfonamide CAS 138890-87-6 chemical structure

Description

3-(2,5,5-Trimethyl-1,3-dioxan-2-yl)thiophene-2-sulfonamide (CAS 138890-87-6) is a high-purity analytical reference standard with the molecular formula C11H17NO4S2 and a molecular weight of 291.39 g/mol.

The molecular framework of 3-(2,5,5-Trimethyl-1,3-dioxan-2-yl)thiophene-2-sulfonamide (C11H17NO4S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

As a certified reference material (CRM), 3-(2,5,5-Trimethyl-1,3-dioxan-2-yl)thiophene-2-sulfonamide 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 FormulaC11H17NO4S2
Molecular Weight291.39 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Nitrogen Atoms1
Sulfur Atoms2

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