Description

n-4-Phenyl A-Benzylidene-D5 Isobutyrylacetamide is a high-purity, deuterated organic compound with the CAS number 265989-32-0. This isotopically labeled material is critical for research and development in analytical chemistry, serving as an internal standard to ensure precise and accurate quantification. It is primarily utilized by pharmaceutical R&D laboratories, contract research organizations (CROs), and academic institutions focused on advanced mass spectrometry and metabolic studies.

Application

• Internal Standard for LC-MS/MS: Used as a deuterated internal standard in quantitative bioanalytical methods for drug metabolism and pharmacokinetics (DMPK) studies.
• Pharmaceutical Research: Enables precise measurement of parent compounds and metabolites in complex biological matrices during preclinical and clinical development.
• Metabolomics and Biomarker Discovery: Facilitates accurate profiling of small molecules in metabolic pathway analysis.
• Stable Isotope Labeling: Serves as a key reagent in the synthesis of other labeled compounds for tracer studies.
• Quality Control in Reference Material Production: Employed in the calibration and validation of analytical instruments and methods.

Basic Information

Product Name	n-4-Phenyl A-Benzylidene-D5 Isobutyrylacetamide
CAS No.	265989-32-0
Molecular Formula	C19H14D5NO2
Molecular Weight	298.41 g/mol
Synonyms	4-Phenyl-α-benzylidene-D5 isobutyrylacetamide; (E)-4-Phenyl-2-(phenyl-D5-methylene)-3-oxo-N-(propan-2-yl)butanamide; Deuterated Benzylidene Isobutyrylacetamide; n-4-Phenyl-α-(phenyl-D5-methylene)isobutyrylacetamide; Isobutyrylacetamide, 4-phenyl-α-(phenyl-D5-methylene)-; 265989-32-0; D5-labeled Benzylidene Acetamide Derivative
EINECS	Contact for details

Quality Control

Every batch of n-4-Phenyl A-Benzylidene-D5 Isobutyrylacetamide is manufactured and tested under strict quality management systems. We guarantee high chemical purity and isotopic enrichment, supported by comprehensive analytical data including NMR, HPLC, and mass spectrometry. A Certificate of Analysis (COA) detailing purity, isotopic purity (D-enrichment), and identity is provided with each shipment to ensure traceability and compliance with your research protocols.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry environment. This material is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity (D-enrichment)	≥ 98 atom % D
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.