Description

L-(+)-Ergothioneine is a naturally occurring, sulfur-containing amino acid derivative with potent antioxidant properties. Its unique stability and cellular uptake mechanism make it a highly sought-after ingredient for advanced health and wellness formulations. This high-purity compound is essential for manufacturers in the nutraceutical, cosmeceutical, and pharmaceutical industries seeking to incorporate a superior, bioavailable antioxidant into their products.

Application

• Nutraceuticals & Dietary Supplements: A key active ingredient in anti-aging, cognitive support, and systemic antioxidant formulations due to its ability to protect cells from oxidative damage.
• Cosmeceuticals & Skincare: Used in serums, creams, and lotions for its skin-brightening, anti-inflammatory, and UV-protective effects, helping to reduce visible signs of aging.
• Pharmaceutical Research: Employed in preclinical and clinical studies investigating its role in mitigating oxidative stress-related conditions, including neurodegenerative and metabolic disorders.
• Functional Food & Beverage Fortification: Incorporated into health drinks, powders, and food products to enhance their nutritional antioxidant profile.
• Advanced Cell Culture Media: Used as a protective additive in sensitive cell culture applications to improve cell viability and growth under oxidative stress.

Basic Information

Item	Details
Product Name	L-(+)-Ergothioneine
CAS No.	497-30-3
Molecular Formula	C9H15N3O2S
Molecular Weight	229.30 g/mol
Synonyms	L-Ergothioneine; (S)-α-Carboxy-2,3-dihydro-N,N,N-trimethyl-2-thioxo-1H-imidazole-4-ethanaminium hydroxide, inner salt; Thioneine; 2-Mercaptohistidine trimethylbetaine; EGT; ERGO; (S)-3-(2-Thioxo-2,3-dihydro-1H-imidazol-4-yl)-2-(trimethylammonio)propanoate
EINECS	207-847-5

Quality Control

Our L-(+)-Ergothioneine is produced under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including HPLC for purity, heavy metal screening, and residual solvent analysis, to ensure it meets stringent specifications for high-grade applications. Certificates of Analysis (COA) documenting identity, purity, and safety are 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). This product is easily oxidized; for long-term storage, keeping the container under an inert atmosphere (e.g., nitrogen) is recommended to maintain optimal stability and potency.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]20/D	+115° to +125° (c=1 in H2O)
Loss on Drying	≤ 1.0%
Residue on Ignition (Sulfated Ash)	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets ICH Q3C guidelines

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