2-(4-Ethoxycarbonylmethyl-benzyl)-2-methyl-malonic Acid Diethyl Ester 2-[[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]-2-methyl-propanedioic Acid 1,3-Diethyl Ester 223123-63-5 4-(2,2-Dicarboethoxy-propyl)phenylacetic Acid Ethyl Ester [[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]methylpropanedioic Acid Diethyl Ester CAS 223123-63-5

Purity 97%+In StockPharmaceutical Standards
CAS No.223123-63-5
Molecular FormulaC19H26O6
Molecular Weight350.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(4-Ethoxycarbonylmethyl-benzyl)-2-methyl-malonic Acid Diethyl Ester 2-[[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]-2-methyl-propanedioic Acid 1,3-Diethyl Ester 223123-63-5 4-(2,2-Dicarboethoxy-propyl)phenylacetic Acid Ethyl Ester [[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]methylpropanedioic Acid Diethyl Ester CAS 223123-63-5 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(4-Ethoxycarbonylmethyl-benzyl)-2-methyl-malonic Acid Diethyl Ester 2-[[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]-2-methyl-propanedioic Acid 1,3-Diethyl Ester 223123-63-5 4-(2,2-Dicarboethoxy-propyl)phenylacetic Acid Ethyl Ester [[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]methylpropanedioic Acid Diethyl Ester.

2-(4-Ethoxycarbonylmethyl-benzyl)-2-methyl-malonic Acid Diethyl Ester 2-[[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]-2-methyl-propanedioic Acid 1,3-Diethyl Ester 223123-63-5 4-(2,2-Dicarboethoxy-propyl)phenylacetic Acid Ethyl Ester [[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]methylpropanedioic Acid Diethyl Ester (CAS 223123-63-5) is a high-purity analytical reference standard with the molecular formula C19H26O6 and a molecular weight of 350.41 g/mol.

Structurally, 2-(4-Ethoxycarbonylmethyl-benzyl)-2-methyl-malonic Acid Diethyl Ester 2-[[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]-2-methyl-propanedioic Acid 1,3-Diethyl Ester 223123-63-5 4-(2,2-Dicarboethoxy-propyl)phenylacetic Acid Ethyl Ester [[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]methylpropanedioic Acid Diethyl Ester (C19H26O6) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 350.41 g/mol, it falls into the moderately-high-molecular-weight range. 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.

As a certified reference material (CRM), 2-(4-Ethoxycarbonylmethyl-benzyl)-2-methyl-malonic Acid Diethyl Ester 2-[[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]-2-methyl-propanedioic Acid 1,3-Diethyl Ester 223123-63-5 4-(2,2-Dicarboethoxy-propyl)phenylacetic Acid Ethyl Ester [[4-(2-Ethoxy-2-oxoethyl)phenyl]methyl]methylpropanedioic Acid Diethyl Ester 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.

Physical & Chemical Properties

Molecular FormulaC19H26O6
Molecular Weight350.41 g/mol
AppearanceOff-white to pale yellow crystalline powder
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2020

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