Description
COA-BACKED NUTRITIONAL INGREDIENT
N-Acetyl-L-Tyrosine for B2B Formulation
N-Acetyl-L-Tyrosine is supplied as a single-entity amino acid for B2B nutrition, beverage and supplement formulation. The purchasing definition is the declared assay, the impurity profile and the physical form rather than a botanical identity.

COA-Backed Specification
| Identity | N-Acetyl-L-Tyrosine |
|---|---|
| CAS No. | 537-55-3 |
| Form and colour | Fine white crystalline powder |
| Assay | 99.0%-101.0% on dried basis |
| 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 | LXYT260630 |
| Manufacture date | 30 Jun 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.

Buyer Decision Guide
N-Acetyl-L-Tyrosine is specified on assay, specific rotation or chiral purity where relevant, and on heavy metal and microbiological limits. Confirm which of these your finished-product specification actually controls before approving a grade.
- Confirm assay basis and analytical method
- Check the salt or free-form identity: N-Acetyl-L-Tyrosine
- Review specific rotation or chiral purity if applicable
- Confirm heavy metal and microbiological limits

How This Grade Differs
N-Acetyl-L-Tyrosine is a single-entity amino acid. It is not interchangeable with the racemic or salt form of the same molecule, and not with a plant extract that merely contains it. Compare assay basis, salt form and impurity profile when substituting.
Compare these related grades before approval:
For a substitution review, compare N-acetyl-L-tyrosine chemical identity, the 99.0%-101.0% HPLC assay on a dried basis, crystalline powder form and the current offered-batch COA. Confirm the named amino-acid derivative before treating another grade as equivalent.
Application Areas
- Sports nutrition and amino acid blends
- Functional beverages and instant drink powders
- Capsules, tablets and stick packs
- Clinical and enteral nutrition projects
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 LXYT260630 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
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 mesh size can you supply?
98% through 80 mesh as standard; other sizes are reviewed against your sieving or blending step.
What physical form does N-Acetyl-L-Tyrosine Powder 99% ship in?
Fine white crystalline powder, milled to 98% through 80 mesh.
What purity window can you hold batch to batch?
99.0%-101.0% on dried basis, verified by HPLC on every lot.
What do you declare for moisture and ash?
Both are released against the limits on the approved specification; the measured result for your lot appears on its COA.
What packing options are available?
Standard packing is a sealed food-grade inner liner inside an export carton or fibre drum. Pack size, labelling and private-label artwork are agreed in the written specification.
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.
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.
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




