(S)-4-(2-((S)-2-((S)-1-(L-Threonyl-L-glutamyl-L-asparaginyl-L-leucyl-L-glutamyl)pyrrolidine-2-carboxamido)-4-amino-4-oxobutanamido)acetamido)-5-((2-amino-2-oxoethyl)amino)-5-oxopentanoic acid CAS 163973-98-6

Purity 97%+In StockPharmaceutical Standards
CAS No.163973-98-6
Molecular FormulaC42H67N13O19
Molecular Weight1058.06 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(S)-4-(2-((S)-2-((S)-1-(L-Threonyl-L-glutamyl-L-asparaginyl-L-leucyl-L-glutamyl)pyrrolidine-2-carboxamido)-4-amino-4-oxobutanamido)acetamido)-5-((2-amino-2-oxoethyl)amino)-5-oxopentanoic acid CAS 163973-98-6 chemical structure

Description

As a certified reference material (CRM), (S)-4-(2-((S)-2-((S)-1-(L-Threonyl-L-glutamyl-L-asparaginyl-L-leucyl-L-glutamyl)pyrrolidine-2-carboxamido)-4-amino-4-oxobutanamido)acetamido)-5-((2-amino-2-oxoethyl)amino)-5-oxopentanoic acid 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 (S)-4-(2-((S)-2-((S)-1-(L-Threonyl-L-glutamyl-L-asparaginyl-L-leucyl-L-glutamyl)pyrrolidine-2-carboxamido)-4-amino-4-oxobutanamido)acetamido)-5-((2-amino-2-oxoethyl)amino)-5-oxopentanoic acid (CAS 163973-98-6), a certified reference material (molecular formula C42H67N13O19, MW 1058.06 g/mol) for analytical method development and quality control.

The molecular framework of (S)-4-(2-((S)-2-((S)-1-(L-Threonyl-L-glutamyl-L-asparaginyl-L-leucyl-L-glutamyl)pyrrolidine-2-carboxamido)-4-amino-4-oxobutanamido)acetamido)-5-((2-amino-2-oxoethyl)amino)-5-oxopentanoic acid (C42H67N13O19) is characterized by a nitrogen-containing heterocyclic scaffold, an amide 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.

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 FormulaC42H67N13O19
Molecular Weight1058.06 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)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2003
Nitrogen Atoms13

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