Description
STANDARDISED BOTANICAL ACTIVE
Homoharringtonine — 98.0%
Homoharringtonine is listed as a Cephalotaxus alkaloid at 98.0% by HPLC. Check the related-alkaloid profile and current batch result before comparing it with other Cephalotaxus compounds or ratio extracts.
COA-Backed Specification
| Identity | Homoharringtonine (Cephalotaxus alkaloid) |
|---|---|
| Plant part | Aerial parts (leaf, twig and bark) |
| Form and colour | Fine white crystalline powder |
| Assay | 98.0% |
| Method | HPLC |
| Impurity profile | Related Cephalotaxus alkaloids reported per batch |
| Residual solvents | Reported per batch against the agreed 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
Buyers qualifying Homoharringtonine usually settle three points before the first order: the assay method and its acceptance range, how the related Cephalotaxus alkaloids are limited, and what documentation accompanies the lot. Confirm each against your own written specification.
- Assay: 98.0% by HPLC, released against the batch certificate of analysis.
- Identity: the purified alkaloid, not a Cephalotaxus ratio extract.
- Related alkaloids (harringtonine, cephalotaxine) limited in the agreed specification and reported per batch.
- Residual solvents and heavy metals reported per batch.
- Packing, light protection and storage conditions agreed before shipment.
- COA, specification sheet and safety data sheet accompany each shipment.
How This Grade Differs
Homoharringtonine, harringtonine and cephalotaxine are distinct molecular identities, each with separate HPLC assay and related-alkaloid specifications. Do not substitute by percentage alone; compare the named analyte and impurity limits against current batch documents.
Related compounds: harringtonine 70%; cephalotaxine 98%. Review each current batch specification independently.
Quality and Documentation
Each lot is tested for assay, related alkaloids, loss on drying, heavy metals and microbiology against the approved specification. Retention samples are kept, and batch records allow the material to be traced back to the collection 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 Homoharringtonine Powder 98%?
98.0%, tested by HPLC.
How is this grade positioned against the other forms offered?
Homoharringtonine, harringtonine and cephalotaxine are distinct molecular identities, each with separate HPLC assay and related-alkaloid specifications. Do not substitute by percentage alone; compare the named analyte and impurity limits against current batch documents.
What must the certificate of analysis report for this product?
Assay: 98.0% by HPLC, released against the batch certificate of analysis. Identity: the purified alkaloid, not a Cephalotaxus ratio extract. Related alkaloids (harringtonine, cephalotaxine) limited in the agreed specification and reported per batch.
What should a buyer confirm before the first order?
Buyers qualifying Homoharringtonine usually settle three points before the first order: the assay method and its acceptance range, how the related Cephalotaxus alkaloids are limited, and what documentation accompanies the lot. Confirm each against your own 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.
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
