(4R-5R)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester (4R-cis)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester 139059-00-0 Ethyl (4R,5R)-D-erythro-4,5-Dihydro-5-(4-methylsulfonylphenyl)-2-phenyl-4-oxazolecarboxylate CAS 139059-00-0

Purity 97%+In StockPharmaceutical Standards
CAS No.139059-00-0
Molecular FormulaC19H19NO5S
Molecular Weight373.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4R-5R)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester (4R-cis)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester 139059-00-0 Ethyl (4R,5R)-D-erythro-4,5-Dihydro-5-(4-methylsulfonylphenyl)-2-phenyl-4-oxazolecarboxylate CAS 139059-00-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 373.42 g/mol gives (4R-5R)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester (4R-cis)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester 139059-00-0 Ethyl (4R,5R)-D-erythro-4,5-Dihydro-5-(4-methylsulfonylphenyl)-2-phenyl-4-oxazolecarboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(4R-5R)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester (4R-cis)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester 139059-00-0 Ethyl (4R,5R)-D-erythro-4,5-Dihydro-5-(4-methylsulfonylphenyl)-2-phenyl-4-oxazolecarboxylate (CAS 139059-00-0) is a high-purity analytical reference standard with the molecular formula C19H19NO5S and a molecular weight of 373.42 g/mol.

(4R-5R)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester (4R-cis)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester 139059-00-0 Ethyl (4R,5R)-D-erythro-4,5-Dihydro-5-(4-methylsulfonylphenyl)-2-phenyl-4-oxazolecarboxylate (C19H19NO5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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

CATO manufactures (4R-5R)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester (4R-cis)-4,5-Dihydro-5-[4-(methylsulfonyl)phenyl]-2-phenyl-4-oxazolecarboxylic Acid Ethyl Ester 139059-00-0 Ethyl (4R,5R)-D-erythro-4,5-Dihydro-5-(4-methylsulfonylphenyl)-2-phenyl-4-oxazolecarboxylate 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 FormulaC19H19NO5S
Molecular Weight373.42 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Nitrogen Atoms1
Sulfur Atoms1

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