5-{[2-(2-{[1-(4-methylbenzenesulfonyl)-1H-indol-4-yl]oxy}ethoxy)ethyl]sulfanyl}-1,3,4-thiadiazol-2-amine CAS 478040-20-9

Purity 97%+In StockPharmaceutical Standards
CAS No.478040-20-9
Molecular FormulaC21H22N4O4S3
Molecular Weight490.62 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-{[2-(2-{[1-(4-methylbenzenesulfonyl)-1H-indol-4-yl]oxy}ethoxy)ethyl]sulfanyl}-1,3,4-thiadiazol-2-amine CAS 478040-20-9 chemical structure

Description

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.

5-{[2-(2-{[1-(4-methylbenzenesulfonyl)-1H-indol-4-yl]oxy}ethoxy)ethyl]sulfanyl}-1,3,4-thiadiazol-2-amine (CAS 478040-20-9) is a high-purity analytical reference standard with the molecular formula C21H22N4O4S3 and a molecular weight of 490.62 g/mol.

Structurally, 5-{[2-(2-{[1-(4-methylbenzenesulfonyl)-1H-indol-4-yl]oxy}ethoxy)ethyl]sulfanyl}-1,3,4-thiadiazol-2-amine (C21H22N4O4S3) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 490.62 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), 5-{[2-(2-{[1-(4-methylbenzenesulfonyl)-1H-indol-4-yl]oxy}ethoxy)ethyl]sulfanyl}-1,3,4-thiadiazol-2-amine 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 FormulaC21H22N4O4S3
Molecular Weight490.62 g/mol
Purity97%+
StorageStore in a cool place (≤25°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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms4
Sulfur Atoms3

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