Lot documents
Same-Lot COA, HPLC and MS for Bulk Peptide Orders
For qualifying bulk orders, BPW locks the shipment batch before release. The supplied COA, HPLC chromatogram and MS report correspond to the lot number on the goods. Buyers may verify the material independently.
Three checks for useful peptide documentation
Check that the report identifies the same lot number as the goods, arrives with the shipment and states who issued it and what was tested.
A public sample COA or purity claim does not verify a future shipment. Use order-specific documents and independent testing where your process requires it.
Buyer protection 03
Locked Batch + Same-Lot Evidence
For qualifying bulk orders, the specific lot or batch is locked before production or release, and the COA, HPLC chromatogram and MS report supplied with the order correspond to the lot number on the goods.
A document that describes some other batch tells a buyer nothing. Locking the lot before release is what makes the paperwork evidence rather than reassurance, and it is the difference between a supplier you can audit and one you have to trust.
What makes a claim assessable
- The lot is locked against a confirmed order and a confirmed specification, so both sides know which material the documentation must describe.
- The documents are issued for that lot and are supplied with the order or release paperwork.
- Where you require testing by a third-party laboratory, that is agreed and quoted before production — it is a separate scope, not an assumption.
What it does not cover
- Documentation from a historical or different batch is never presented as evidence for your bulk order.
- Third-party laboratory testing is not implied or included unless it is separately agreed and quoted before production.
- The issuing party and the scope of testing are stated in the quotation or order confirmation, so you know what each document does and does not cover.
- This protection applies to qualifying bulk orders. Documentation available for a trial order is confirmed at the time of quotation.
This is the same wording as the terms of use — the marketing page and the contract say one thing, not two.
What can be requested with an order
Availability depends on the compound and the lot, so what exists for your items is stated when we send the current wholesale list rather than promised in advance.
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Lot documentation
For qualifying bulk orders the lot is locked before release, and the COA, HPLC chromatogram and MS report correspond to the lot number on your goods. For a trial order, what exists is confirmed at quotation.
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Analytical data for the lot
HPLC chromatogram and MS report for the locked lot, supplied with a qualifying bulk order. The issuing party and the scope of testing are stated in the quotation, so you know what each document covers.
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Specification sheet
The written specification agreed at the trial stage — format, fill per unit and packaging — reused as the reference for reorders.
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Shipping and handling records
Packing configuration and the temperature handling applied to the consignment, prepared before dispatch alongside the shipping paperwork.
If a document you need is not available for a compound, you will be told that directly. A supplier who says yes to every documentation request has not understood the request.
Verification
How to verify a lot without trusting the supplier
This is the sequence we would use if we were buying, and we would rather you ran it on us than skipped it.
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Fix your acceptance criteria first
Write down what would make a lot acceptable before it arrives. Criteria invented after a shipment lands tend to bend toward whatever showed up.
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Check the document against the shipment
Confirm the documentation refers to the lot you actually received and that the identifiers match the units in the box. A document describing a different lot is not evidence about yours.
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Check the document against the specification
Compare it line by line with the written specification from the trial stage — format, fill per unit and packaging included, not just the headline compound name.
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Test independently where it matters
For compounds your business depends on, send material to a third-party laboratory of your choosing. Independent testing is supported and we would rather you did it at trial stage than discovered a problem at volume.
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Keep the record for the reorder
Keep the specification, the documentation and any test result together. That set is what makes a reorder a quantity conversation instead of a fresh negotiation.
Example
A redacted real document, not a mock-up
This slot is reserved for a genuine lot document with the lot number, buyer details and results redacted, so buyers can see the format and layout of what they will receive.
We will not fabricate a specimen document to fill the space. A mocked-up document on a supplier website is a red flag, and it would be a strange thing to publish on a page about verification.
- Redacted from a real lot document
- Shows format and layout, not results
- Your own lot documentation refers to your shipment
Documentation questions
Will documentation be supplied with my order?
For qualifying bulk orders, the batch is locked before release and the COA, HPLC chromatogram and MS report match the lot number on the goods. Available trial-lot documents are confirmed before payment. See same-lot evidence.
Why are there no example documents or certification claims on this site?
Because a document published on a website refers to a lot you did not buy. Publishing one invites you to trust a page instead of checking your own shipment, which is the opposite of useful. Documentation is supplied per lot with the order.
Can I have material tested by my own laboratory?
Yes. Agree the acceptance specification before dispatch and use a qualified independent laboratory. If the trial objectively misses that specification, the Trial Quality Refund covers the product cost under its published conditions. Supplier-arranged testing is quoted separately.
Do you publish purity figures for the range?
No. A purity number on a public page is not evidence about the lot you receive, and a figure attached to a compound name rather than a lot is meaningless. Specification and analytical data are supplied per lot instead.
What happens if the documentation and the material do not agree?
Raise it and it gets resolved against the written specification agreed at the trial stage. That is what the written specification is for, and it is why we insist on producing one before volume is discussed.
Do you provide regulatory approval documents for my market?
No. Material is supplied for research use only, and no regulatory approval is claimed or implied for any market. Confirming what applies where you import, use or resell is the buyer’s responsibility.
Ask what documentation exists for your compounds
Send your shortlist and tick the documentation box on the enquiry form. The list comes back with what can be supplied per lot for those specific items.