(4R,7S,10S,13R,16S,19R)-13-((1H-indol-3-yl)Methyl)-10-(4-aminobutyl)-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-19-((R)-2-((E)-6-hydrazono-1,6-dihydropyridine-3-carboxamido)-3-phenylpropanamido)-16-(4-hydroxybenzyl)-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide CAS 257943-19-4

Purity 97%+In StockPharmaceutical Standards
CAS No.257943-19-4
Molecular FormulaC55H71N13O12S2
Molecular Weight1170.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4R,7S,10S,13R,16S,19R)-13-((1H-indol-3-yl)Methyl)-10-(4-aminobutyl)-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-19-((R)-2-((E)-6-hydrazono-1,6-dihydropyridine-3-carboxamido)-3-phenylpropanamido)-16-(4-hydroxybenzyl)-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide CAS 257943-19-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 1170.36 g/mol gives (4R,7S,10S,13R,16S,19R)-13-((1H-indol-3-yl)Methyl)-10-(4-aminobutyl)-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-19-((R)-2-((E)-6-hydrazono-1,6-dihydropyridine-3-carboxamido)-3-phenylpropanamido)-16-(4-hydroxybenzyl)-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(4R,7S,10S,13R,16S,19R)-13-((1H-indol-3-yl)Methyl)-10-(4-aminobutyl)-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-19-((R)-2-((E)-6-hydrazono-1,6-dihydropyridine-3-carboxamido)-3-phenylpropanamido)-16-(4-hydroxybenzyl)-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide (CAS 257943-19-4) is a high-purity analytical reference standard with the molecular formula C55H71N13O12S2 and a molecular weight of 1170.36 g/mol.

The molecular framework of (4R,7S,10S,13R,16S,19R)-13-((1H-indol-3-yl)Methyl)-10-(4-aminobutyl)-N-((2R,3R)-1,3-dihydroxybutan-2-yl)-19-((R)-2-((E)-6-hydrazono-1,6-dihydropyridine-3-carboxamido)-3-phenylpropanamido)-16-(4-hydroxybenzyl)-7-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carboxamide (C55H71N13O12S2) is characterized by a nitrogen-containing heterocyclic scaffold, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC55H71N13O12S2
Molecular Weight1170.36 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)27.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms13
Sulfur Atoms2

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