Description
STANDARDISED BOTANICAL ACTIVE
Cephalotaxine — 98.0%
Cephalotaxine is listed as a Cephalotaxus alkaloid at 98.0% by HPLC. Its specification limits ester alkaloids including harringtonine and homoharringtonine; inspect the current batch results before assessing suitability.
COA-Backed Specification
| Identity | Cephalotaxine (Cephalotaxus alkaloid) |
|---|---|
| Plant part | Aerial parts (leaf, twig and bark) |
| Form and colour | Fine white crystalline powder |
| Assay | 98.0% |
| Method | HPLC |
| Ester alkaloids | Harringtonine and homoharringtonine limited in the 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
When cephalotaxine is used as an intermediate, the acceptance criteria differ from a finished ingredient: the ester alkaloid ceiling and the solvent profile usually matter more than the headline assay.
- Assay: 98.0% by HPLC.
- Ester alkaloid ceiling: harringtonine and homoharringtonine limited individually.
- Identity confirmed against a reference standard on the same method.
- Residual solvents reported per batch, since the isolation route uses organic solvents.
- Loss on drying and heavy metals reported per batch.
- COA, specification sheet and safety data sheet accompany each shipment.
How This Grade Differs
Cephalotaxine, harringtonine and homoharringtonine are distinct compounds. Compare the specific HPLC analyte, assay and limits for related ester alkaloids before purchase or substitution.
Related compounds: homoharringtonine 98%; harringtonine 70%. Review each current batch specification independently.
Quality and Documentation
Assay and ester alkaloid content are determined on the same HPLC run, with reference standards run alongside each batch. Solvent residues, loss on drying and heavy metals are reported per lot.
Regulatory Note
This material is supplied as a reference and industrial raw material. It is not offered as a food, dietary supplement or finished pharmaceutical product. Regulatory status, permitted uses, import licensing and labelling are the buyer’s responsibility for the destination market.
Frequently Asked Questions
What specification defines Cephalotaxine Powder 98%?
98.0%, tested by HPLC.
How is this grade positioned against the other forms offered?
Cephalotaxine, harringtonine and homoharringtonine are distinct compounds. Compare the specific HPLC analyte, assay and limits for related ester alkaloids before purchase or substitution.
What must the certificate of analysis report for this product?
Assay: 98.0% by HPLC. Ester alkaloid ceiling: harringtonine and homoharringtonine limited individually. Identity confirmed against a reference standard on the same method.
What should a buyer confirm before the first order?
When cephalotaxine is used as an intermediate, the acceptance criteria differ from a finished ingredient: the ester alkaloid ceiling and the solvent profile usually matter more than the headline assay.
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.
Get the current batch COA, a sample or a quotation
