Description

Diethyl 2-(n-Butyl-D9)Malonate is a high-purity, deuterium-labeled derivative of diethyl butylmalonate, a key synthetic intermediate. This compound is specifically designed for use as an internal standard in quantitative mass spectrometry, ensuring unparalleled accuracy in analytical measurements. It is essential for researchers and quality control laboratories in the pharmaceutical, agrochemical, and environmental testing sectors who require precise quantification of metabolites or related compounds.

Application

• Internal Standard for LC-MS/MS: Primary application for the accurate quantification of malonate derivatives, pharmaceuticals, or metabolites in complex biological matrices.
• Pharmaceutical Research & Development: Used in pharmacokinetic (PK) and pharmacodynamic (PD) studies, drug metabolism and disposition (DMPK) assays, and bioanalytical method development.
• Metabolomics and Biomarker Discovery: Enables precise tracking and measurement of specific metabolic pathways in research focused on disease mechanisms.
• Agrochemical Analysis: Serves as a stable isotope-labeled standard for the residue analysis of pesticides or herbicides in crop and environmental samples.
• Chemical Synthesis Intermediate: The deuterium-labeled butyl group can be utilized in the synthesis of more complex deuterated compounds for research purposes.
• Forensic and Clinical Toxicology: Supports the accurate identification and quantification of specific substances in forensic investigations and clinical diagnostic tests.

Basic Information

Product Name	Diethyl 2-(n-Butyl-D9)Malonate
CAS No.	1189865-34-6
Molecular Formula	C11D9H11O4
Molecular Weight	~235.30 g/mol
Synonyms	Diethyl 2-(Butyl-d9)malonate; Diethyl (Butyl-d9)propanedioate; Diethyl Butyl-d9 Malonate; 1,3-Diethyl 2-Butyl-d9 Propanedioate; Deuterated Diethyl Butylmalonate; Diethyl 2-(n-Butyl-d9)malonate; Diethyl (n-Butyl-d9)malonate; Butyl-d9 Malonic Acid Diethyl Ester
EINECS	Contact for details

Quality Control

Every batch of Diethyl 2-(n-Butyl-D9)Malonate is manufactured and analyzed under strict quality management protocols to ensure isotopic purity and chemical integrity. Our standard specifications are verified by advanced analytical techniques including NMR, HPLC, and Mass Spectrometry. A comprehensive Certificate of Analysis (COA) detailing isotopic enrichment (D-9), chemical purity, and solvent residues is provided with each shipment to support your regulatory and research requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat sources and open flame. For long-term storage, consider storing under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Chemical Purity)
Isotopic Purity (MS)	≥ 98 atom % D (D-9)
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.