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Precision Research Peptides

Verified purity,
every single batch.

Cathrex Labs is built for researchers who don't take purity on faith — every vial ships with independent lab data behind it.

For laboratory research use only.

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Cathrex Labs research peptide sample box with vials
Our Standard

Why researchers choose Cathrex Labs

Every batch we release passes the same seven-point protocol before it ever reaches a bench — no exceptions, no shortcuts.

Purity

HPLC analysis confirms concentration and identity

Identity

Mass spec confirms the exact sequence, every lot

Sterility

Aseptic process control on every production run

Heavy Metals

Validated free of Pb, As, and Hg contamination

Endotoxin

LAL testing keeps endotoxin levels within limit

7X
Tested Per Batch

Batch Verification

Every vial carries a traceable lot-specific code

Multipoint Conformity

Retained stability samples for longitudinal checks

Batch Lookup

Find your Certificate of Analysis

Enter the lot code printed on your vial's label to pull up that batch's test results.

Try a sample: LOT-24091A LOT-24088B LOT-24075C
No batch found for that lot code. Double-check the code on your vial label, or contact us for help.

Passed
Lot Code
—
Purity
—
Endotoxin
—
Test Date
—

Sample results shown for demonstration — this lookup tool isn't yet connected to live batch records. Real per-lot COAs will populate here as production comes online.

Batch Integrity

Transparency in every vial

Nothing about a Cathrex Labs batch is a black box — from synthesis to your bench, every claim is backed by data you can pull up yourself.

Proven Purity

Every batch undergoes HPLC analysis at independent labs, confirming compound identity and concentration.

Batch Tracking

Every vial is labeled with a unique lot code, matched directly to its Certificate of Analysis.

Proven Quality

Multi-vial sampling checks batch-to-batch consistency — not spot checks, full verification.

Cathrex Labs research peptide vial

For Research Use Only

Formulated exclusively for in-vitro studies. Not intended for human consumption.

Quality Traceability

Every product carries a batch code you can match to its COA in our library — HPLC purity, endotoxin, and conformity data included.

Sample batch code layout

About Cathrex Labs

Precision fuels research.

At Cathrex Labs, our commitment is simple: quality, consistency, and transparency. Every compound we synthesize is independently tested and backed by a batch-specific Certificate of Analysis.

With rigorous multi-vial testing for identity, purity, and endotoxin levels, we deliver research materials you can trust — with consistency in every batch.

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Cathrex Labs