Description
STANDARDISED ACTIVE
Curcumin, synthetic — 98.0%
Synthetic curcumin is listed as a single compound at 98.0% by HPLC, rather than as a turmeric extract. Compare the declared origin, curcumin assay and limits for companion curcuminoids on the current batch documents before substituting a plant-derived grade.
COA-Backed Specification
| Identity | Curcumin (synthetic, single compound) |
|---|---|
| Plant part | Synthetic; not a plant-derived extract |
| Form and colour | Bright yellow crystalline powder |
| Assay | 98.0% |
| Method | HPLC |
| Origin declaration | Synthetic route; declared on the COA and not interchangeable with turmeric extract |
| Companion curcuminoids | Demethoxycurcumin and bisdemethoxycurcumin limited per specification |
| Particle size | 98% through 80 mesh |
| Loss on drying | Within the limits of the approved specification |
| Ash | Within the limits of the approved specification |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Shelf life | Two years when stored properly |
Limits shown are the agreed specification. Result values are issued on the batch-specific certificate of analysis.
Buyer Decision Guide
The word curcumin covers both a turmeric extract and an synthesised single compound. Three points prevent the wrong one arriving.
- Assay: 98.0% curcumin by HPLC on the isolated compound.
- Origin: declared as synthetic on the COA, so it cannot be passed off as turmeric extract.
- Companion curcuminoids limited in the specification rather than assumed absent.
- Residual solvents reported per batch, since the synthetic route uses organic solvents.
- Colour and particle size consistent lot to lot for capsule and beverage lines.
- COA, specification sheet and safety data sheet accompany each shipment.
How This Grade Differs
Turmeric-derived curcumin grades are listed separately. Compare origin, HPLC assay, companion-curcuminoid limits and physical form on the current specification; matching a headline percentage alone does not establish equivalence.
Compare listed products: turmeric-derived 95% curcumin extract; turmeric-derived 30% curcumin extract. Review the current batch specification before substitution.
Quality and Documentation
Each lot is assayed by HPLC with companion curcuminoids integrated on the same run, then checked for residual solvents, moisture, heavy metals and microbiology.
Frequently Asked Questions
Which specification figure should the purchase order reference for Curcumin (Synthetic) Powder 98%?
The figure 98.0%, measured by HPLC.
Which batch is the quotation based on?
A representative batch is named on the quotation; the lot you receive is released on its own certificate.
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.
How does the material behave in your process?
It is supplied as Bright yellow crystalline powder at 98% through 80 mesh, so bulk density and flow are confirmed against your process before the first order.
How long can we hold stock before use?
Two years from the manufacture date when the pack stays sealed and dry.
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 you produce to our own specification or packing?
Alternative assay targets, particle size, packing and private-label requirements are reviewed case by case, subject to production feasibility and a revised written 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.
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
