Ethyl 3-(5-(chlorosulfonyl)thiophen-2-yl)-1,2,4-oxadiazole-5-carboxylate CAS 388088-70-8

Purity 97%+In StockPharmaceutical Standards
CAS No.388088-70-8
Molecular FormulaC9H7ClN2O5S2
Molecular Weight322.75 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 3-(5-(chlorosulfonyl)thiophen-2-yl)-1,2,4-oxadiazole-5-carboxylate CAS 388088-70-8 chemical structure

Description

As a certified reference material (CRM), Ethyl 3-(5-(chlorosulfonyl)thiophen-2-yl)-1,2,4-oxadiazole-5-carboxylate 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.

CATO supplies Ethyl 3-(5-(chlorosulfonyl)thiophen-2-yl)-1,2,4-oxadiazole-5-carboxylate (CAS 388088-70-8), a certified reference material (molecular formula C9H7ClN2O5S2, MW 322.75 g/mol) for analytical method development and quality control.

The molecular framework of Ethyl 3-(5-(chlorosulfonyl)thiophen-2-yl)-1,2,4-oxadiazole-5-carboxylate (C9H7ClN2O5S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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.

Physical & Chemical Properties

Molecular FormulaC9H7ClN2O5S2
Molecular Weight322.75 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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms2

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