L-Ergothioneine (CAS 497-30-3) is supplied by Monuo Chemical for B2B cosmetic and research buyers. It is also referenced as Ergothioneine, EGT, Thioneine. Typical evaluation areas include antioxidant concepts, anti-aging leave-on care, cell-protection formulas. Buyers usually search by product name or CAS when sourcing leave-on actives and peptide systems.
Key Specifications at a Glance
| Product Name | L-Ergothioneine |
|---|---|
| CAS Number | 497-30-3 |
| Molecular Formula | C9H15N3O2S |
| Molecular Weight | 229.3 g/mol |
| Purity | >=98.0% (HPLC) |
| Appearance | White to off-white solid |
| Solubility | Water soluble |
| Category | Oligo-peptide / Cosmetics Peptide |
| Documents | COA, TDS, SDS on request |
| Supply Origin | China | Worldwide shipping |
What Is L-Ergothioneine?
L-Ergothioneine (CAS 497-30-3) is supplied by Monuo Chemical as a B2B raw material. Molecular formula C9H15N3O2S; molecular weight about 229.3 g/mol.
In cosmetic and formulation literature, L-Ergothioneine is commonly positioned for antioxidant concepts, anti-aging leave-on care, cell-protection formulas. Finished-product claims and labeling remain the brand manufacturer’s responsibility. Monuo Chemical supplies the material with batch identity and purity data (COA / SDS).
Naturally occurring sulfur-containing amino-acid derivative; not a peptide.
Synonyms & Search Names
- Ergothioneine
- EGT
- Thioneine
- CAS 497-30-3
Applications
As a raw material, L-Ergothioneine is commonly evaluated in:
- antioxidant concepts
- anti-aging leave-on care
- cell-protection formulas
Handling & Formulation Notes
Add L-Ergothioneine according to your process map after verifying solubility and stability in the target base. Request the batch COA/SDS for lot-specific handling notes.
Need process discussion for your base? Email info@monuochem.com with your target format.
Packaging, Storage & Logistics
| Standard Pack Sizes | 50 g / 100 g bottles; 500 g / 1 kg packs (custom packing available) |
|---|---|
| Storage | Keep sealed, dry and protected from light and heat. Follow the batch COA and SDS. |
| Shelf Life | Confirm shelf life on the COA for each lot. |
| MOQ | Commercial MOQ discussed per project (often from 10 g); smaller trial packs available on request |
| Lead Time | Stock items often ship promptly; custom pack / large lots typically 7–14 working days |
Quality & Documentation
For L-Ergothioneine (CAS 497-30-3), Monuo Chemical can provide:
- Certificate of Analysis (COA)
- Technical Data Sheet (TDS) and Safety Data Sheet (SDS)
- CAS / product-name confirmation for your purchase file
- Flexible packing from grams to kilograms
- FOB / CIF / DAP terms as agreed
Our team aims to return technical data and quotations within 24 hours.
Request a Quote, COA or Quotation Support
Share your target purity, pack size and destination. We will confirm availability and documentation for L-Ergothioneine CAS 497-30-3.
Request a Quote | Email: info@monuochem.com
Frequently Asked Questions
What is L-Ergothioneine (CAS 497-30-3)?
L-Ergothioneine is a B2B raw material supplied by Monuo Chemical. Match CAS 497-30-3 on the batch COA for identity confirmation.
What is the molecular formula and weight of L-Ergothioneine?
Molecular formula C9H15N3O2S; molecular weight about 229.3 g/mol.
Is L-Ergothioneine known by other names?
Yes. Common synonyms / literature names include: Ergothioneine, EGT, Thioneine. For purchasing, specify the product name and CAS 497-30-3, then confirm against the COA.
What purity of L-Ergothioneine do you supply?
Typical supply purity is >=98.0% (HPLC). Exact assay is stated on the Certificate of Analysis for each lot.
What are common applications of L-Ergothioneine?
L-Ergothioneine is commonly evaluated in: antioxidant concepts; anti-aging leave-on care; cell-protection formulas.
How should L-Ergothioneine be handled in formulation?
Confirm solubility in your intended system, prefer mild thermal conditions, and verify assay retention before scale-up.
What documents can Monuo Chemical provide?
COA, TDS and SDS are standard. Additional purchase-file letters can be discussed per project.
What is the MOQ for L-Ergothioneine?
Commercial MOQ is commonly discussed from 10 g upward, with flexible packs up to kilograms. Smaller trial packs can be arranged based on project needs.
Do you ship worldwide?
Yes. Monuo Chemical ships worldwide under agreed Incoterms. Lead time depends on stock and packaging.
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Disclaimer: Information is for B2B raw-material identification and technical reference. Finished-product claims and labeling remain the customer’s responsibility. Verify each lot against the supplied COA and SDS.





