(S)-tert-Butyl 3-amino-4-((3-(4-chlorobenzoyl)-4,5- dimethylthien-2-yl)amino)-4-oxobutanoate CAS 1268524-66-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1268524-66-8
Molecular FormulaC21H25ClN2O4S
Molecular Weight436.95 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(S)-tert-Butyl 3-amino-4-((3-(4-chlorobenzoyl)-4,5- dimethylthien-2-yl)amino)-4-oxobutanoate CAS 1268524-66-8 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (S)-tert-Butyl 3-amino-4-((3-(4-chlorobenzoyl)-4,5- dimethylthien-2-yl)amino)-4-oxobutanoate.

CATO supplies (S)-tert-Butyl 3-amino-4-((3-(4-chlorobenzoyl)-4,5- dimethylthien-2-yl)amino)-4-oxobutanoate (CAS 1268524-66-8), a certified reference material (molecular formula C21H25ClN2O4S, MW 436.95 g/mol) for analytical method development and quality control.

Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, (S)-tert-Butyl 3-amino-4-((3-(4-chlorobenzoyl)-4,5- dimethylthien-2-yl)amino)-4-oxobutanoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 436.95 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

CATO manufactures (S)-tert-Butyl 3-amino-4-((3-(4-chlorobenzoyl)-4,5- dimethylthien-2-yl)amino)-4-oxobutanoate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC21H25ClN2O4S
Molecular Weight436.95 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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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