How to Verify a Peptide Batch Record

Follow the vial, record and source documents

• Read the product name, declared amount and lot identifier on the vial. Do not search using only the compound name or a laboratory report number.
• Enter the printed lot identifier in Batch Records. The search ignores letter case and spaces before or after the entry; keep the identifier itself intact.
• On a matching record, compare product, strength and lot, then read the release status.
• Open the independent laboratory and manufacturer documents where published. Compare their report identifiers, dates, sample descriptions and results with the record.
• Keep the source report and version with the relevant lot information so later questions refer to the same material.

A specification describes a target; a report describes the identified sample and tests. A report for a similar product or an earlier lot cannot fill a documentation gap for the lot you are checking.

Read the lot status before treating a record as current supply

Published and current are different labels. TBL retains qualifying released, archived and superseded records, while current supply also requires an explicit allocation to the exact product and strength. The newest report date alone does not select the current lot.

These labels describe TBL’s record and allocation states. They are not laboratory test results, expiry dates or a certification of suitability for an experiment.

If the search finds no published record

First recheck the identifier against the vial, including punctuation and easily confused characters. A supplier lot identifier and a laboratory report number may be different; the lookup expects the TBL lot identifier.

No match means this search did not find a published record. It does not tell you whether the entry was mistyped, documentation is unpublished or some other issue needs investigation. It neither authenticates the vial nor establishes that it is counterfeit.

Before TBL’s first lots are acquired, documented and released, an empty production-record list is intentional. Do not interpret that absence as a failed test or as evidence that testing is already complete.

If the expected record still cannot be found, use the Contact link on Batch Records. Provide the product, declared amount, exact lot identifier and the record or report link you tried. Ask which published record, if any, applies.

If a report is missing, inaccessible or opens a general portal

• A document marked pending is not an available result. Keep that limitation visible.
• If a link is broken or access is blocked, keep the report identifier and ask for a working source copy. Inaccessibility alone does not establish a failed analysis or a false report.
• If a link opens only a laboratory homepage or general verification portal, locate the specific report using its stated identifier. Reaching the portal is not the same as finding a matching report.
• If two copies differ, retain their dates or versions and ask which is authoritative. Do not silently combine their results.

Published document links are required by TBL’s release checks, but a stored URL cannot guarantee that an external service remains reachable. Report a broken published link so its source and status can be reviewed.

If the vial, sample and manufacturer identifiers differ

Different identifiers may describe different steps in the supply and testing process. Look for an explicit mapping between the TBL lot, manufacturer lot and submitted laboratory sample. Similar names or matching amounts are not a substitute for that mapping.

ICH Q7 addresses representative sampling and the information linking batch certificates to their sources. These are useful reference concepts; they do not establish the provenance of a particular TBL vial or certify TBL as GMP compliant. [1]

If the mapping is missing, ambiguous or inconsistent, ask TBL to explain the relationship. Until it is resolved, describe the link as unverified rather than inventing an equivalence between two identifiers.

Separate the issuer, commissioning party and sample source

The manufacturer, report issuer, testing laboratory, party that commissioned testing and party that selected the sample may be different. Read the roles actually disclosed. An independent laboratory name does not, by itself, tell you who chose or submitted the sample.

Keep manufacturer documentation identifiable as manufacturer documentation. Likewise, identify separately commissioned testing by its actual source. If the commissioning party or sampling process is not disclosed, record that as unknown; do not label the sample independently collected.

A redacted public copy should explain what was withheld. Preserve that limitation when evaluating the record. Ask for clarification of the lot relationship rather than assuming withheld information has been independently verified.

Interpret the result within its analytical scope

Identity, chromatographic purity and measured content answer different questions. ICH Q2(R2) evaluates analytical procedures according to their intended purpose and performance characteristics; a single result does not stand in for every test. [2]

A lookup, COA or release label does not establish human-use safety, sterility, regulatory approval or clinical benefit. It also does not prove that every vial was separately tested. Read the sampling information and the scope of each report.

For a documentation query, describe the specific mismatch or missing field and include the lot and report references. Do not use a historical result, generic portal or marketing claim to close an unresolved gap.