Description
HIGH-PURITY SPECIALTY INGREDIENT
L-Carnosine Powder 98%
L-carnosine is supplied as a single-entity dipeptide at 98.0% by HPLC, released against a batch-specific certificate of analysis. The isomeric form is part of the identity of this grade: the L-form is a separate product from the D-form and from the racemic mixture. It is an industrial raw material for further processing and is not a finished consumer product.
COA-Backed Specification
| Identity | L-Carnosine (beta-alanyl-L-histidine) |
|---|---|
| Form and colour | Fine white to off-white crystalline powder |
| Assay | 98.0% |
| Method | HPLC |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=5.0%; result 3.80% |
| Ash | <=5.0%; result 3.40% |
| Isomeric form | L-form, confirmed on the certificate of analysis |
| Specific rotation | Available on request for the offered batch |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Representative batch | LXJT260623 |
| Manufacture date | 23 Jun 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Agree the assay, the analytical method and the isomeric form before approval, and confirm the specific rotation where the buyer’s specification controls it. Compare the offered grade against your own specification basis rather than on the headline percentage alone.
- Assay: 98.0% by HPLC, released against the batch COA.
- Isomeric form confirmed: L-form.
- Specific rotation available on request.
- Impurity profile reported per batch.
- COA, specification sheet and safety data sheet accompany each shipment.
- Regulatory status, permitted uses and labelling are the buyer’s responsibility for the destination market.
How This Grade Differs
L-carnosine is offered as the L-isomer and alongside the D-form and the racemic mixture, and it is also offered as the zinc complex under a related name. These are separate products with different specifications. Confirm the isomeric form and whether a complex is required before comparing quotations.
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
- Tablet and chewable systems
- Dry blends and premix manufacturing
- Functional beverage systems, subject to the buyer 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 LXJT260623 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 specification defines L-Carnosine Powder 98%?
For L-Carnosine Powder 98%: 98.0%, tested by HPLC.
Which identity details must remain consistent?
For L-Carnosine Powder 98%: match L-Carnosine (beta-alanyl-L-histidine) across the quotation, specification and offered-batch COA. The offered grade is 98.0%.
How is batch-specific approval completed?
For L-Carnosine Powder 98%: the page cites representative batch LXJT260623. Final approval requires the current lot’s identity, specification results and relevant dates.
What forms part of the technical review?
For L-Carnosine Powder 98%: do not assess 98.0% in isolation; particle size, moisture or drying data and market-relevant safety limits can also affect acceptance.
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.
Can I request the current batch COA before ordering?
Yes. Request the applicable current or representative COA and compare product identity, method, limits and results before approving a purchase order.
What is the minimum order quantity?
The regular MOQ is typically 1 kg. An evaluation sample of 10-20 g can usually be arranged before a formal order, subject to stock.
Do you support custom specifications or packing?
Alternative assay targets, particle size, packing and private-label requirements can be reviewed case by case, subject to production feasibility and a revised written specification.
Request COA, Sample or Quotation
Send your target specification, application, order quantity, destination country and required test limits.
