2-(Acetylamino)-2-[[3-(2-ethoxy-2-oxoethoxy)-5-methyl-4-isoxazolyl]methyl]propanedioic Acid 1,3-Diethyl Ester 887354-95-2 Ethyl 2-Acetamido-2-ethoxycarbonyl-3-[3-(ethoxycarbonylmethoxy)-5-methylisoxazol-4-yl]propanoate CAS 887354-95-2

Purity 97%+In StockPharmaceutical Standards
CAS No.887354-95-2
Molecular FormulaC18H26N2O9
Molecular Weight414.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(Acetylamino)-2-[[3-(2-ethoxy-2-oxoethoxy)-5-methyl-4-isoxazolyl]methyl]propanedioic Acid 1,3-Diethyl Ester
887354-95-2
Ethyl 2-Acetamido-2-ethoxycarbonyl-3-[3-(ethoxycarbonylmethoxy)-5-methylisoxazol-4-yl]propanoate CAS 887354-95-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 414.41 g/mol gives 2-(Acetylamino)-2-[[3-(2-ethoxy-2-oxoethoxy)-5-methyl-4-isoxazolyl]methyl]propanedioic Acid 1,3-Diethyl Ester 887354-95-2 Ethyl 2-Acetamido-2-ethoxycarbonyl-3-[3-(ethoxycarbonylmethoxy)-5-methylisoxazol-4-yl]propanoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-(Acetylamino)-2-[[3-(2-ethoxy-2-oxoethoxy)-5-methyl-4-isoxazolyl]methyl]propanedioic Acid 1,3-Diethyl Ester 887354-95-2 Ethyl 2-Acetamido-2-ethoxycarbonyl-3-[3-(ethoxycarbonylmethoxy)-5-methylisoxazol-4-yl]propanoate (CAS 887354-95-2), molecular formula C18H26N2O9 and molecular weight 414.41 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 2-(Acetylamino)-2-[[3-(2-ethoxy-2-oxoethoxy)-5-methyl-4-isoxazolyl]methyl]propanedioic Acid 1,3-Diethyl Ester 887354-95-2 Ethyl 2-Acetamido-2-ethoxycarbonyl-3-[3-(ethoxycarbonylmethoxy)-5-methylisoxazol-4-yl]propanoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 414.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC18H26N2O9
Molecular Weight414.41 g/mol
AppearanceOff-white to pale yellow crystalline powder
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms2

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