(S)-2-((S)-2-((tert-Butoxycarbonyl)amino)-3-(1H-indol-3-yl)propanamido)-4-(methylthio)butanoic acid CAS 54855-10-6

Purity 97%+In StockPharmaceutical Standards
CAS No.54855-10-6
Molecular FormulaC21H29N3O5S
Molecular Weight435.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(S)-2-((S)-2-((tert-Butoxycarbonyl)amino)-3-(1H-indol-3-yl)propanamido)-4-(methylthio)butanoic acid CAS 54855-10-6 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.

(S)-2-((S)-2-((tert-Butoxycarbonyl)amino)-3-(1H-indol-3-yl)propanamido)-4-(methylthio)butanoic acid (CAS 54855-10-6), molecular formula C21H29N3O5S and molecular weight 435.54 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of (S)-2-((S)-2-((tert-Butoxycarbonyl)amino)-3-(1H-indol-3-yl)propanamido)-4-(methylthio)butanoic acid (C21H29N3O5S) is characterized by a flavonoid core, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO manufactures (S)-2-((S)-2-((tert-Butoxycarbonyl)amino)-3-(1H-indol-3-yl)propanamido)-4-(methylthio)butanoic acid 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 FormulaC21H29N3O5S
Molecular Weight435.54 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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1972
Nitrogen Atoms3
Sulfur Atoms1

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