1. Match the name to the material you need
Bai Bu, Stemona root, Stemonae Radix and Radix Stemonae can appear in different catalogues. Start with the botanical name, plant part and intended use in your own purchasing standard. Do not assume that two offers are equivalent because both use the common name Bai Bu.
If you already buy this material, share the existing specification rather than relying only on a photograph. A photo can help explain the desired form, but it does not establish botanical identity.
2. Define the physical form and acceptance criteria
State whether you require dried whole root, cut material or a particular preparation. If cut size, sorting, foreign matter or other physical criteria matter to your process, specify the required method and acceptance limit.
Ask which preparation is actually available. A supplier’s ability to provide dried root does not by itself establish availability of powder, extract or a finished formulation.
3. Review documents for the proposed batch
Send the test items and methods required by your buyer and destination market. Depending on your specification, this may include identity, moisture, residues, metals or microbiological testing. These are items to agree, not a statement that every listed test has been performed on our material.
For a certificate of analysis or other test report, check the material name, batch reference, sample date, test methods and results. Confirm that it describes the lot being evaluated. A generic report or a report for another batch cannot answer that question.
4. Agree how the sample relates to the order
Before arranging a sample, confirm its form and quantity, any charges, the delivery address and the expected dispatch timing. Ask which proposed lot it represents and whether further approval is needed if the supplied lot changes.
Record your acceptance criteria and sample feedback. When you move to an order, use the agreed specification and batch details to make the comparison meaningful.
5. Compare quotes on the same basis
Compare the same material, processing form and quantity. State the net pack weight, lining or moisture protection required, label information and delivery destination.
Clarify what the price includes, the payment terms, delivery arrangements and responsibilities for any destination documents before accepting the quote. The lowest headline price may describe a different form, packing basis or scope of delivery.
6. Send a brief the supplier can act on
Bring the decisions together in one inquiry. You do not need to know every answer before contacting us; identifying the open questions helps us reply to the right request.
- Material name, botanical requirement, plant part and physical form.
- Intended use, destination market and estimated quantity.
- Acceptance criteria and documents to review.
- Sample request, packing requirements and desired delivery timing.