N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-(ethylthio)-L-cysteine CAS 1208242-13-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1208242-13-0
Molecular FormulaC20H21NO4S2
Molecular Weight403.52 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-(ethylthio)-L-cysteine CAS 1208242-13-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 403.52 g/mol gives N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-(ethylthio)-L-cysteine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-(ethylthio)-L-cysteine (CAS 1208242-13-0), a certified reference material (molecular formula C20H21NO4S2, MW 403.52 g/mol) for analytical method development and quality control.

Based on its molecular formula C20H21NO4S2, N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-(ethylthio)-L-cysteine contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 403.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-(ethylthio)-L-cysteine 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 FormulaC20H21NO4S2
Molecular Weight403.52 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms1
Sulfur Atoms2

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