Description
HIGH-PURITY SPECIALTY INGREDIENT
Alpha Lipoic Acid Powder 99%
Alpha-lipoic acid is supplied as a single-entity specialty ingredient at 99% assay, released against a batch-specific certificate of analysis. It is an industrial raw material for further processing and is not a finished consumer product.
COA-Backed Specification
| Identity | Alpha-lipoic acid (thioctic acid) |
|---|---|
| Form and colour | Light yellow crystalline powder |
| Assay | 99% |
| Method | As stated on the batch certificate of analysis |
| Optical form | Confirm racemic or R-form on the quotation before ordering |
| Packaging | 1 kg / 5 kg / 25 kg, inner liner and outer fibre drum |
| Shelf life | As stated on the batch certificate of analysis |
The figures above are the offered specification. Batch results, heavy metals, residual solvents and microbiological limits are reported on the current lot’s certificate of analysis and are not restated here.
Buyer Decision Guide
The first decision is optical form. Racemic alpha-lipoic acid and the R-enantiomer are different products with a large price gap, and they are not interchangeable in a formulation. Confirm which one the quotation covers before comparing suppliers on price.
The second decision is handling. Alpha-lipoic acid is sensitive to light, heat and moisture, and it is only sparingly soluble in water. If your process needs an aqueous phase, that belongs in formulation trials rather than in a supplier’s specification sheet.
The third decision is documentation. For a 99% grade, ask for the current lot’s assay by HPLC together with identity confirmation, not a representative sheet from an earlier year.
Application Areas
- Antioxidant supplement formulations
- Sports nutrition and metabolic-support blends
- Cosmetic and personal-care formulations
- Research and reference material
Packaging and Delivery
Standard export packing is 1 kg, 5 kg or 25 kg in an inner liner with an outer fibre drum. Larger packing and private-label arrangements can be reviewed against the order volume and destination.
Frequently Asked Questions
What assay is supplied and how is it verified?
The offered grade is 99%. Identity and assay are confirmed on the batch certificate of analysis, and the current lot’s sheet is issued with the quotation.
Is this racemic or R-alpha-lipoic acid?
Both forms exist commercially and are priced very differently. The optical form is stated explicitly on the quotation and on the batch certificate so it can be checked before the order is placed.
Is it soluble in water?
Only sparingly. Aqueous formulation usually needs a solubilisation step, which is a formulation decision rather than a raw-material specification.
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.
Can packing be customised?
Packing size and labelling can be reviewed case by case, subject to a revised written specification.
Are you a manufacturer or a trading company?
LongBio is Shaanxi Longsheng Biotechnology Co., Ltd., a manufacturer of botanical extracts and functional ingredients integrating R&D, production and export support. Factory review can be arranged by video or on site.
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