Description

Aprepitant 13C2, D2 (Major) is a stable isotope-labeled analog of the antiemetic drug Aprepitant, specifically enriched with carbon-13 and deuterium. This compound is a critical reference standard and internal standard for the precise quantification and pharmacokinetic study of Aprepitant in biological matrices using advanced analytical techniques like LC-MS/MS. It is an essential tool for pharmaceutical R&D, bioanalytical laboratories, and contract research organizations (CROs) engaged in drug metabolism and bioequivalence studies to ensure accurate and reliable data.

Application

• Bioanalytical Reference Standard: Serves as a primary standard for the quantitative analysis of Aprepitant in plasma, serum, and other biological fluids via mass spectrometry.
• Pharmacokinetic & Metabolism Studies: Used as an internal standard to track drug absorption, distribution, metabolism, and excretion (ADME) with high specificity, correcting for analytical variability.
• Drug Impurity Profiling: Employed in method development and validation to identify and quantify potential deuterated or isotopically labeled impurities in drug substances.
• Clinical Research: Facilitates accurate therapeutic drug monitoring and bioequivalence studies in clinical trials for antiemetic formulations.
• Regulatory Submissions: Supports data packages for regulatory authorities (e.g., FDA, EMA) by providing validated analytical methods using certified reference materials.
• Stable Isotope Labeling Research: Used in mechanistic studies to elucidate metabolic pathways of Aprepitant without interference from endogenous compounds.

Basic Information

Product Name	Aprepitant 13C2, D2 (Major)
CAS No.	1217676-37-3
Molecular Formula	C23H1913C2D2F7N4O3
Molecular Weight	~ 537.46 g/mol (for 13C2, D2 isotopologue)
Synonyms	5-[[(2R,3S)-2-[(1R)-1-[3,5-Bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)-4-morpholinyl]methyl]-1,2-dihydro-3H-1,2,4-triazol-3-one-13C2,d2; Aprepitant-13C2,D2; Aprepitant (phenyl-13C2, d2); L-754030-13C2,D2; MK-0869-13C2,D2; EMEND-13C2,D2; Neurokinin-1 Receptor Antagonist-13C2,D2
EINECS	Contact for details

Quality Control

Every batch of Aprepitant 13C2, D2 (Major) is manufactured and analyzed under strict quality systems. We guarantee high chemical and isotopic purity, with comprehensive characterization using NMR (1H, 13C, 19F), HPLC, and mass spectrometry to confirm structure, isotopic enrichment, and purity. Certificates of Analysis (COA) are provided, detailing batch-specific results for assay, isotopic purity, and related substances. Our quality commitment aligns with the standards expected for pharmaceutical reference materials.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) or as indicated on the label. This compound is hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment. For long-term storage, consider storing under inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity (13C)	≥ 99 atom % 13C
Isotopic Purity (D)	≥ 98 atom % D
Chemical Purity (NMR)	Conforms
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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