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LL-37 (CAP-18)
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ll-37 (cap-18)

new
99.926% HPLC
Cathelicidin peptide

LL-37 is the 37-amino-acid C-terminal peptide of human cathelicidin (hCAP-18), the only cathelicidin identified in humans. In published in vitro and preclinical literature it has been investigated for its role in innate-immune signalling and membrane-interaction models. Supplied lyophilized; purity and identity are reported per lot on that lot’s Certificate of Analysis. For laboratory and research use only — not for human or animal consumption. ROEHN makes no claims regarding its effects.

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Lot LL05-01162026-J99.926% purity by HPLC · assayed Jan 21, 2026Verify →
Free cold-chain shipping over $150 · independent LC-MS/MS testing · signed COA
RUO — For research use only. Not for human or animal consumption.

A cathelicidin peptide studied in INNATE-IMMUNE research.

Compound
LL-37 · human cathelicidin (CAP-18)
CAS number
154947-66-7
Molecular formula
C₂₀₅H₃₄₀N₆₀O₅₃
Molecular weight
4493.3 g/mol
Sequence
LLGDFFRKSKEKIGKEFKRIVQRIKDFLRNLVPRTES (37 aa)
PubChem CID
16198951
Purity
Reported per lot on the certificate
Identity
Reported per lot by mass spectrometry
Form
Lyophilized powder
Testing
Independent HPLC-UV + LC-MS/MS — Freedom Diagnostics
Research use
Laboratory research only — not for human or animal consumption
Made with
ll-37
lyophilized
Application
Reconstitute with bacteriostatic water per your research protocol.
Assayed results — lot LL05-01162026-J
99.926%
Purity by HPLC, as assayed by Freedom Diagnostics
6.20 mg
Net peptide content recovered per vial
Jan 21, 2026
Date assayed · accession 2601190002
Figures are this lot's own assayed results, reproduced from the signed certificate as Freedom Diagnostics reported them. Analytical results only — they describe the material, not any physiological outcome. Research use only.

verified, not promised.

Enter the lot code from your roehn vial to pull its Certificate of Analysis: independent purity and identity results, published exactly as the lab reported them. Lots still in testing say so. Research use only.

View lot LL05-01162026-J certificate →