Description

L-Methionine Methylsulfonium Iodide is a specialized organosulfur compound, also known as Vitamin U, with significant biochemical activity. This high-purity intermediate is critical for pharmaceutical research and development, particularly in the synthesis of advanced therapeutic agents and nutritional supplements. It serves as a vital building block for manufacturers in the pharmaceutical, nutraceutical, and fine chemical sectors seeking reliable, high-quality raw materials for their formulations.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of S-adenosylmethionine (SAMe) analogs and other methyl-donor compounds for therapeutic applications.
• Nutraceutical Research: Used in the development of specialized dietary supplements targeting liver health, joint support, and mood regulation.
• Biochemical Research: Essential reagent in studies involving methylation processes, cellular metabolism, and enzymatic reactions.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method validation in pharmaceutical laboratories.
• Fine Chemical Synthesis: Building block for creating complex molecules in medicinal chemistry and organic synthesis.

Basic Information

Product Name	L-Methionine Methylsulfonium Iodide
CAS No.	3493-11-6
Molecular Formula	C6H14INO2S
Molecular Weight	291.15 g/mol
Synonyms	Vitamin U; (S)-3-Amino-3-carboxypropyl-dimethylsulfonium Iodide; L-Methionine Sulfonium Iodide; Methionine Methylsulfonium Iodide; S-Methylmethionine Sulfonium Iodide; MMSC; Methylmethionine Sulfonium Salt; Anti-ulcer Vitamin
EINECS	222-474-9

Quality Control

Our L-Methionine Methylsulfonium Iodide is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product is tested against rigorous in-house specifications, with analysis typically including identification, assay, and impurity profiling. Certificates of Analysis (COA) detailing all test results are provided with each shipment to support your quality assurance protocols.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect stability and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	-20° to -24° (c=1 in H2O)
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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