L-Se-Methylselenocysteine

Organic Selenium Ingredient | Manufacturer & Bulk Supplier
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L-Se-Methylselenocysteine is a high-purity organic selenium compound widely recognized for its stability, bioavailability, and suitability as a nutritional selenium source. It is commonly used as a selenium nutritional fortifier and functional ingredient in dietary supplements, functional foods, and pharmaceutical or nutritional research.

CHEN LANG BIO TECH is a professional L-Se-Methylselenocysteine manufacturer and supplier, specializing in plant-derived extracts, nutritional ingredients, and pharmaceutical raw materials. We provide food-grade, high-purity L-Se-Methylselenocysteine powder with stable quality, complete documentation, and reliable bulk supply for international markets.

What Is L-Se-Methylselenocysteine?

L-Se-Methylselenocysteine, also known as L-Se-methylselenocysteine (MSC), is an organic selenium-containing amino acid derivative. Chemically, it is identified as 3-(methylselenyl)-L-alanine and registered under CAS No. 26046-90-2.

Unlike inorganic selenium sources, MSC belongs to the category of organic selenium compounds, characterized by a clearly defined molecular structure and stable selenium content. It naturally occurs in selenium-accumulating plants such as garlic, onions, and certain Allium species, as well as in selenium-enriched yeast and plant matrices.

Due to its chemical stability and predictable behavior in formulation, L-Se-Methylselenocysteine powder has become a preferred selenium source for nutritional applications requiring precise dosage control and consistent quality.

Regulatory Background and Industry Recognition

The use of L-Se-Methylselenocysteine as a nutritional selenium source has a well-documented regulatory history:

In 2002, selenium compounds including methylselenocysteine derivatives were recognized in the United States as acceptable selenium source ingredients for nutritional applicaations.

In 2009, 3-(methylselenyl)-L-alanine was officially approved in China as a new nutritional fortifier for food applications, reinforcing its safety profile and industry acceptance.

This regulatory recognition has contributed to the global adoption of organic selenium ingredients such as MSC in dietary supplements and functional nutrition products.

Key Characteristics of L-Se-Methylselenocysteine Powder

L-Se-Methylselenocysteine powder supplied by CHEN LANG BIO TECH is a low-molecular-weight organic compound with clearly defined physicochemical properties:

Applications of L-Se-Methylselenocysteine

As a manufacturer supplying organic selenium raw materials to international customers, we work closely with formulators across different industries. Based on real-world use cases, L-Se-Methylselenocysteine (MSC) is most commonly applied in the following areas.

Dietary Supplement Formulations

It is widely used as a selenium source in dietary supplements, particularly in products designed for daily nutritional support. Its stable selenium content and clearly defined chemical structure make it suitable for precise dosing in capsules, tablets, and powder-based supplements.

Functional and Fortified Foods

In functional and fortified food applications, MSC is used as a selenium nutritional fortifier to help achieve targeted micronutrient levels. Its good solubility and formulation compatibility allow it to be incorporated into a variety of food systems under controlled conditions.

Nutritional Premixes

MSC is also commonly included in nutritional premixes, where ingredient stability and uniform distribution are essential. Its predictable behavior during blending and storage helps premix manufacturers maintain consistent selenium content across finished products.

Special Medical Nutrition

In the field of special medical nutrition, ingredient quality and documentation standards are especially important. L-Se-Methylselenocysteine is selected for applications that require a food-grade, well-characterized organic selenium ingredient, supported by complete analytical and regulatory documentation.

Pharmaceutical and Nutritional Research

Beyond commercial production, MSC is also supplied for pharmaceutical and nutritional research purposes. Its well-established chemical profile and consistent purity make it suitable for laboratory studies, formulation development, and applied research related to selenium-containing compounds.

Manufacturing & Quality Control

As an experienced L-Se-Methylselenocysteine manufacturer, CHEN LANG BIO TECH operates under a structured quality management system designed to meet international standards.

Our production processes follow GMP-aligned practices, with controlled environments, documented procedures, and validated workflows. Quality control is implemented at every stage, including raw material sourcing, in-process monitoring, and final product testing.

Each batch of L-Se-Methylselenocysteine powder is tested using validated analytical methods to confirm identity, purity, and compliance with agreed specifications.

Certifications & Compliance

To support global customers and diverse market requirements, our operations and products are backed by internationally recognized certifications:

•ISO 9001 certified quality management system;

•Halal certified production;

•Kosher certified production.

These certifications provide assurance that our food-grade L-Se-Methylselenocysteine meets the quality, safety, and compliance expectations of international buyers.

Contact Us

If you are sourcing a reliable L-Se-Methylselenocysteine manufacturer or bulk supplier, please contact CHEN LANG BIO TECH for specifications, samples, and pricing.

📧 Email: admin@chenlangbio.com

🌐 Website: www.chenlangbio.com

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Frequently Asked Questions about L-Se-Methylselenocysteine (MSC)

What is L-Se-Methylselenocysteine?

M-Se-Methylselenocysteine (MSC) is an organic selenium-containing amino acid derivative. Chemically, it is known as 3-(methylselenyl)-L-alanine and is classified as a food-grade organic selenium compound. It is widely used as a selenium nutritional ingredient in dietary supplements, functional foods, and nutritional formulations.

What purity level do you supply for L-Se-Methylselenocysteine?

We typically supply high-purity L-Se-Methylselenocysteine powder, commonly around 99% purity. Customized specifications can be discussed depending on application requirements and formulation needs.

Is your L-Se-Methylselenocysteine food grade?

Yes. Our L-Se-Methylselenocysteine raw material is produced as a food-grade ingredient and manufactured under GMP-aligned quality systems. It is suitable for use in dietary supplements, fortified foods, and nutritional formulations, subject to local regulatory requirements.

What is your MOQ for L-Se-Methylselenocysteine?

Our minimum order quantity (MOQ) for L-Se-Methylselenocysteine powder is 1kg, as a manufacturer, we aim to support both initial trials and long-term cooperation, so MOQ can be adjusted reasonably according to project needs.

How can I purchase L-Se-Methylselenocysteine from CHEN LANG BIO TECH?

To request specifications, samples, or pricing for L-Se-Methylselenocysteine raw material, please contact CHEN LANG BIO TECH directly. Our team will support you with technical information and supply options.

📧 Email: admin@chenlangbio.com