Description
HIGH-PURITY SPECIALTY INGREDIENT
Ergothioneine (L-ergothioneine)
Ergothioneine (L-ergothioneine) is supplied as a high-purity B2B raw material at 99.0%. This grade is produced to a declared purity with controlled identity, residual solvents and heavy metals, and is released against a batch-specific COA. It is intended for further processing by the buyer or for use as a reference material in development work; it is not a finished consumer product.
COA-Backed Specification
| Identity | Ergothioneine (L-ergothioneine) |
|---|---|
| Form and colour | Fine white crystalline powder |
| Assay | 99.0% |
| Method | HPLC |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=5.0% |
| Ash | <=5.0% |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Representative batch | LXGZ260613 |
| Manufacture date | 13 Jun 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Buyers approving Ergothioneine (L-ergothioneine) normally agree four points before the first order: the assay method and acceptance range, the identity and isomeric form, the residual solvent limits applicable to the destination market, and the physical form required by the buyer’s process. Confirm these at enquiry stage so the shipment is released to the right specification.
- Assay: 99.0% by HPLC, released batch by batch against the current COA.
- Identity: confirmed by the analytical methods stated in the specification table above.
- Residual solvents and heavy metals: reported per batch and reviewed against the destination market’s limits.
- Physical form: powder as standard; packaging and particle size agreed against the buyer’s process.
- Documentation: COA, specification sheet and safety data sheet accompany each shipment.
- Regulatory status, permitted uses and labelling requirements are the buyer’s responsibility for the destination market.
How This Grade Differs
Ergothioneine (L-ergothioneine) is often quoted alongside materials of the same or a closely related name at a different purity or in a different form. The two are not interchangeable: purity, residual solvent profile and physical form all change the buyer’s processing yield. Compare quotations on the released assay and the reported impurity profile, not on the headline percentage alone.
Compare these related grades before approval:
For a substitution review, compare botanical identity, plant part, assay target, analytical method, physical form and the current offered-batch COA.
Application Areas
- Hard capsules and two-piece capsule filling
- Stick packs and single-serve sachets
- Powder blends and dry mixes
- Beverage and liquid concentrate systems, subject to the buyer’s process validation
Packaging and Delivery
- Evaluation sample typically 10-20 g, subject to stock
- Regular MOQ typically 1 kg
- 1 kg foil bag or 25 kg fibre drum with inner food-grade liner
- Custom packing and private-label options subject to confirmation
- Typical lead time 7-15 working days after deposit
Quality and Documentation
Representative batch LXGZ260613 supports the specification table above. Use the cited record for preliminary comparison and request the offered-lot COA for final technical approval. Batch COA, specification sheet, agreed third-party testing and export documents are available for buyer verification.
Frequently Asked Questions
What links the quotation to the delivered material?
The specification figure (99.0%) and the batch number LXGZ260613 carry through from quotation to certificate.
How is Ergothioneine Powder 99% quantified?
By HPLC against the specification figure of 99.0%.
How long can we hold stock before use?
Two years when stored properly from the manufacture date when the pack stays sealed and dry.
Which impurity limits are declared?
Moisture and ash are held within the approved specification limits, with heavy metals and microbiology tested on every lot.
What physical form does Ergothioneine Powder 99% ship in?
Fine white crystalline powder, milled to 98% through 80 mesh.
Can I get a sample before placing the order?
Yes. An evaluation sample is normally available before a formal order. Sample quantity, courier account and destination are confirmed at the time of request.
Which documents come with the shipment?
Batch COA, specification sheet, agreed third-party testing where required, commercial invoice, packing list, certificate of origin and transport documents. The exact set is confirmed against the product and destination market.
Are you a manufacturer or a trading company?
LongBio is Shaanxi Longsheng Biotechnology Co., Ltd., a direct manufacturer of botanical extracts and functional ingredients integrating R&D, production and export support. Factory review can be arranged by video or an on-site visit.
Request COA, Sample or Quotation
Send your target specification, application, order quantity, destination country and required test limits.
Get the current batch COA, a sample or a quotation
