Ergothioneine (EGT) Powder

Ergothioneine (EGT), also known as L-Ergothioneine (CAS No. 497-30-3), is a premium, naturally occurring sulfur-containing amino acid derivative. Recognized for its exceptional cellular protection and antioxidant properties, EGT is a key specialty ingredient used in dietary supplements, functional foods, beverages, and cosmetic formulations.

Technical Specifications & Product Profile

Parameter	Specification / Standard	Testing Method
Product Name	L-Ergothioneine (EGT)	-
CAS No.	497-30-3	-
Molecular Formula / Weight	C9H15N3O2S / 229.30 g/mol	-
Appearance	White to off-white crystalline powder	Visual
Assay (Purity)	98.0% or higher (Dry basis)	HPLC
Loss on Drying	1.0% or less	USP <731>
Heavy Metals	Total Heavy Metals: 10 ppm or less	ICP-MS
Lead (Pb) / Arsenic (As)	Lead: 1.0 ppm or less / Arsenic: 1.0 ppm or less	ICP-MS
Microbiological Control	Total Plate Count: Under 1,000 CFU/g Yeast & Mold: Under 100 CFU/g E. coli & Salmonella: Negative	USP <61/62>
Storage & Shelf Life	Store in tightly sealed containers in a cool, dry, dark place. 24 Months shelf life.	-

Key Applications & Formulation Guidelines

Dietary Supplements & Nutraceuticals
Target Applications: Healthy aging, cellular protection, cognitive health, and antioxidant support.

Formats: Capsules, tablets, stick packs, and powder blends.

Formulation Insight: High purity (98.0% or higher) minimizes bulk volume, ensuring easy blending with excipients and precise dosage control per serving.

Functional Foods & Beverages
Target Applications: Ready-to-mix (RTM) powders, functional shots, and wellness drinks.

Formulation Insight: Excellent water solubility. Formulators should verify thermal stability and pH compatibility during processing (such as pasteurization).

Cosmetic & Personal Care
Target Applications: Anti-aging serums, protective creams, brightening lotions, and recovery masks.

Formulation Insight: Highly stable in the aqueous phase. Recommended to incorporate during the water phase or post-emulsification stage under controlled processing temperatures.

Technical Documentation & Supplier Qualification

To streamline your vendor approval process, we offer full transparency and original technical documentation:

Batch-Specific Certificate of Analysis (COA) verifying purity, assay, and safety limits.

Technical Data Sheet (TDS) & Safety Data Sheet (SDS) for regulatory compliance.

HPLC Chromatograms proving active identity and purity.

Third-Party Test Reports for heavy metals, pesticides, and residual solvents.

Audit-Ready Facility Standards: cGMP, ISO9001, ISO22000, Kosher, and Halal certifications.

Procurement & Commercial Supply

Sample Evaluation: Fast dispatch for R&D testing and analytical verification.

Bulk Packaging: Standard 1 kg foil bags or 25 kg fiber drums with customized labeling options.

Supply Reliability: Transparent lead times, consistent inventory, and full batch traceability.

FAQ

Q: What is Ergothioneine (EGT)?

A: Ergothioneine is a naturally occurring sulfur-containing amino acid derivative. L-Ergothioneine is the form commonly used as a specialty ingredient in nutritional, functional food and selected cosmetic formulations.

Q: What is the CAS number of Ergothioneine?

A: The CAS number of Ergothioneine is 497-30-3.

Q: What is the molecular weight of Ergothioneine?

A: The molecular weight of Ergothioneine is approximately 229.30 g/mol. Its molecular formula is C9H15N3O2S.

Q: How is Ergothioneine quality verified?

A: Quality can be evaluated through assay and identity testing together with applicable parameters such as moisture, related substances, heavy metals, microbiological limits and residual solvents where applicable.

Q: Is Ergothioneine suitable for dietary supplements?

A: Ergothioneine can be evaluated for dietary supplement formats such as capsules, tablets, powders and other nutritional formulations.

Q: Can Ergothioneine be used in functional beverages?

A: Ergothioneine can be evaluated for functional beverage and powdered drink applications.

Q: What documents should I request when purchasing Ergothioneine?

A: Commonly requested documents include COA, TDS, SDS and product specification.
Depending on the buyer's qualification procedure, additional analytical or third-party testing documents may also be requested.

Q: Can I request an Ergothioneine sample before placing a bulk order?

A: A sample can be used for formulation development and supplier qualification before commercial purchasing.

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