(4R,5S,6S)-6-((R)-1-Hydroxyethyl)-4-methyl-3-((4-((S)-5-methyl-2,5-dihydro-1H-pyrrol-3-yl)thiazol-2-yl)thio)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic a CAS 426253-04-5

Purity 97%+In StockPharmaceutical Standards
CAS No.426253-04-5
Molecular FormulaC18H21N3O4S2
Molecular Weight407.51 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4R,5S,6S)-6-((R)-1-Hydroxyethyl)-4-methyl-3-((4-((S)-5-methyl-2,5-dihydro-1H-pyrrol-3-yl)thiazol-2-yl)thio)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic a CAS 426253-04-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 407.51 g/mol gives (4R,5S,6S)-6-((R)-1-Hydroxyethyl)-4-methyl-3-((4-((S)-5-methyl-2,5-dihydro-1H-pyrrol-3-yl)thiazol-2-yl)thio)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic a distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(4R,5S,6S)-6-((R)-1-Hydroxyethyl)-4-methyl-3-((4-((S)-5-methyl-2,5-dihydro-1H-pyrrol-3-yl)thiazol-2-yl)thio)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic a (CAS 426253-04-5) is a high-purity analytical reference standard with the molecular formula C18H21N3O4S2 and a molecular weight of 407.51 g/mol.

The molecular framework of (4R,5S,6S)-6-((R)-1-Hydroxyethyl)-4-methyl-3-((4-((S)-5-methyl-2,5-dihydro-1H-pyrrol-3-yl)thiazol-2-yl)thio)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic a (C18H21N3O4S2) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

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 FormulaC18H21N3O4S2
Molecular Weight407.51 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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms3
Sulfur Atoms2

Recommended Standards

Why CATO?