How to Request a CoA from AbsoluteBioLab

To request or locate
an AbsoluteBioLab Certificate of Analysis (CoA), use the current CoA
access route shown on the AbsoluteBioLab website and match the
document to the exact product and batch or lot in hand. A CoA is only
useful when its identifiers and analytical evidence correspond to the
material being reviewed; a purity percentage copied from a different
lot is not a substitute for batch-linked documentation.

Research Use Only AbsoluteBioLab products are supplied strictly for laboratory research purposes. CoA access and interpretation do not change the Research Use Only boundary and do not create human or veterinary-use guidance.

What information should you have ready?

Before opening the
CoA page or contacting support, have the product name, the batch or
lot identifier printed on the item or packaging, and the order
reference available if you have it. The current form or support route
may ask for some or all of these details. The important point is not
the request channel itself; it is the ability to link the document
unambiguously to the material being assessed.

Use the current CoA access route, not an old
workflow description

AbsoluteBioLab’s CoA
access method may change as the website and document system evolve.
For that reason, this guide does not promise a fixed portal workflow,
QR-code process, laboratory name or delivery time. Use the live CoA
page as the operational source of truth. If the page cannot locate
the required document, use the current support route shown on the
site and provide the product and batch identifiers needed to resolve
the request.

What should you check when the document is
available?

Check	Why it matters	If it does not match
Product / material identity	Confirms the document describes the intended research material.	Do not rely on the certificate until the mismatch is resolved.
Batch / lot identifier	Links the analytical record to the physical lot under review.	Request clarification or the correct batch record.
Analytical method named	A result such as purity only has meaning in the context of the method used.	Treat an unexplained result as incomplete evidence.
HPLC profile / purity result	Supports method-specific chromatographic assessment.	Do not use area % as proof of molecular identity or absolute peptide content.
Mass-spectrometry identity evidence	Supports molecular identity under the stated method.	Do not infer chromatographic purity from MS identity alone.
Other reported attributes	Water/moisture, counter-ion or content data can affect interpretation when actually measured.	Do not infer these attributes from HPLC area % unless an appropriate method is reported.

From Our Work: why exact batch matching comes
before the headline purity number

AbsoluteBioLab
reviews analytical evidence as a batch-linked evidence set rather
than treating one percentage as a release decision. The review checks
the product and batch match, HPLC purity/profile, mass-spectrometry
identity where provided, appearance, labelled amount or content where
supported, water or moisture information, counter-ion information,
document completeness and storage/handling status. The analytical
testing itself is produced by the manufacturer and/or third-party
laboratories; this review does not imply in-house analytical testing
or laboratory accreditation.

If a meaningful
mismatch is identified between the material, the batch record or the
analytical documentation, the batch is held while clarification
and/or a justified retest is requested. That operational rule is why
a CoA request should begin with identifiers, not with a target purity
figure. A certificate that cannot be matched reliably to the lot does
not become stronger evidence because it reports a high
chromatographic area percentage.

What a CoA can and cannot establish

A CoA can organise
batch-specific analytical evidence, but the document has to be read
within the limits of the underlying methods. ICH Q2(R2) and Q14
describe analytical results in relation to the intended analytical
procedure, its performance characteristics and its control strategy.
Those principles are useful for interpreting research documentation,
but they are not presented here as a claim that AbsoluteBioLab or its
suppliers operate under pharmaceutical ICH regulatory status.

For example, an HPLC
area percentage can support a chromatographic purity claim under the
stated method, while mass spectrometry can support molecular
identity. Neither result alone establishes every other attribute of
the material. A static certificate can also omit electronic context
such as instrument sequence, integration method or audit trail; FDA
data-integrity guidance illustrates why the full analytical record
can contain information that is not visible on a printed
chromatogram.

If the document is missing or inconsistent

1. Check the product name and
   batch/lot identifier again against the item or packaging.

2. Use the current CoA page or
   support route and state exactly which product and batch record you
   are trying to locate.

3. Describe the mismatch precisely
   rather than asking whether the product is simply ‘good’ or ‘bad’.
   Examples include a different batch number, missing method
   information or a document that names a different material.

4. Do not substitute another
   batch’s certificate or infer missing test results from a headline
   purity claim.

5. Where the inconsistency affects
   the evidence needed for the research decision, wait for
   clarification and/or retest evidence before relying on the record.

Related AbsoluteBioLab guides

• How to Read a Peptide
  Certificate of Analysis — interpret common fields and their
  limitations.

• Why Batch Numbers and Lot
  Traceability Matter — understand the product-to-batch-to-document
  relationship.

• Analytical Release Criteria for
  Research Peptides and Compounds — see how multiple evidence types
  are reviewed together.

• Peptide Chromatogram Red Flags
  and Purity-Claim Limitations — review chromatographic evidence
  without treating every anomaly as proof of fraud.

• Research Batch Documentation
  Retention and Experimental Audit Trails — retain the evidence used
  for later experimental review.

Frequently asked questions

Can
I rely on a CoA if the batch number is different?

No. A certificate
for another lot is not batch-specific evidence for the material in
hand. Request the correct record or clarification before relying on
it.

Does
a 99% HPLC result prove the material is 99% peptide by mass?

No. HPLC area
percentage is method-specific chromatographic information. It does
not by itself establish molecular identity, absolute peptide content,
water, counter-ion content or total composition.

Does
AbsoluteBioLab perform the analytical testing in-house?

Do not infer that
from this guide. The approved operating description is that
analytical testing is produced by the manufacturer and/or third-party
laboratories and AbsoluteBioLab reviews the resulting evidence.

What
happens if the documentation does not match the batch?

A meaningful
unresolved mismatch is a hold point in the AbsoluteBioLab
evidence-review workflow. Clarification and/or a justified retest is
requested before the evidence set is relied on.

Key takeaway

Request the CoA
through the current live AbsoluteBioLab route, then verify the
product, batch and analytical context before relying on any result.
The document is part of a batch evidence system; it is not a
transferable purity badge.

References

1. FDA / ICH Q2(R2),
Validation of Analytical Procedures, final guidance, March 2024.
https://www.fda.gov/regulatory-information/search-fda-guidance-documents/q2r2-validation-analytical-procedures

2. FDA / ICH Q14,
Analytical Procedure Development, final guidance, March 2024.
https://www.fda.gov/regulatory-information/search-fda-guidance-documents/q14-analytical-procedure-development

3. FDA, Data
Integrity and Compliance With Drug CGMP: Questions and Answers, final
guidance, December 2018.
https://www.fda.gov/regulatory-information/search-fda-guidance-documents/data-integrity-and-compliance-drug-cgmp-questions-and-answers

4. FDA, Questions
and Answers on Current Good Manufacturing Practice Requirements —
Records and Reports.
https://www.fda.gov/drugs/guidances-drugs/questions-and-answers-current-good-manufacturing-practice-requirements-records-and-reports