Description

2-Methyl-3-(Methylthio)Propanoic Acid-D3 is a deuterated analog of a key sulfur-containing carboxylic acid, offering a stable isotopic label for advanced research and analytical applications. This compound is essential for use as an internal standard in mass spectrometry, enabling precise quantification and metabolic pathway tracing in complex biological and chemical matrices. It is primarily utilized by researchers and developers in the pharmaceutical, agrochemical, and analytical chemistry sectors for method development, pharmacokinetic studies, and environmental analysis.

Application

• Internal Standard for Mass Spectrometry (MS): Used for accurate quantification in LC-MS and GC-MS analysis due to its isotopic stability.
• Metabolic Pathway Tracing: Employed in pharmaceutical and biochemical research to study drug metabolism and degradation pathways.
• Analytical Method Development: Serves as a critical reference material for developing and validating sensitive analytical methods.
• Isotope Dilution Analysis: Facilitates high-precision measurement of target analytes in environmental and food safety testing.
• Chemical Synthesis Intermediate: Acts as a deuterated building block for synthesizing labeled complex molecules in research.

Basic Information

Product Name	2-Methyl-3-(Methylthio)Propanoic Acid-D3
CAS No.	1374320-97-4
Molecular Formula	C5H7D3O2S
Molecular Weight	135.20 g/mol (for deuterated form)
Synonyms	3-(Methylthio)-2-methylpropanoic Acid-d3; 2-Methyl-3-(methylmercapto)propionic Acid-d3; 2-Methyl-3-(methylsulfanyl)propanoic Acid-d3; DL-2-Methyl-3-(methylthio)propionic Acid-d3; 3-Methylthio-2-methylpropionic Acid-d3; β-Methyl-β-(methylthio)propionic Acid-d3; MTPA-d3
EINECS	Contact for details

Quality Control

Our deuterated compounds are produced under strict quality control to ensure high isotopic purity and chemical integrity, meeting the exacting standards required for analytical applications. Each batch is characterized by advanced spectroscopic and chromatographic techniques, including NMR and HPLC-MS. A comprehensive Certificate of Analysis (COA) detailing isotopic enrichment (D-atom %), chemical purity, and analytical results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container tightly sealed in a well-ventilated area.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR / NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity (D-atom %)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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