LL-37 5mg | 20-Vial Kit | Antimicrobial Peptide Kit
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QSC LL-37 (Cathelicidin antimicrobial peptide) — ≥99% HPLC purity, MS confirmed, Janoshik COA. Research use only.
* The information on this page is a summary and is not intended to cover all available information about this medication. It does not cover all possible uses, directions, precautions, drug interactions or adverse effects and is not a substitute for the expertise and judgement of your healthcare professional.
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What is LL-37?
LL-37 (Cathelicidin antimicrobial peptide (hCAP-18 C-terminal)) is a 37-amino acid cationic alpha-helical peptide. Human cathelicidin C-terminal domain adopting alpha-helical conformation in membranes. Disrupts bacterial membranes via electrostatic interaction with anionic phospholipids, modulates TLR2/4 signalling to prevent hyperinflammation, promotes wound healing via keratinocyte migration, and exerts antiviral and antifungal activity.
Research Applications
Antimicrobial Mechanism
Membrane disruption against Gram+/Gram- bacteria, biofilm inhibition
TLR Signalling Modulation
TLR2/4 immune balance — pathogen clearance without excess inflammation
Wound Healing
Keratinocyte migration, re-epithelialisation, angiogenesis promotion
Antiviral Activity
Enveloped virus membrane disruption and innate antiviral response
Host Defence Biology
Innate immunity, antimicrobial peptide structure-activity research
Quick Specs
| Form | Lyophilized powder |
| Purity | ≥99% by HPLC — every batch |
| CAS Number | 154947-66-7 |
| Molecular Formula | C₂₀₅H₃₄₀N₆₀O₅₃ |
| Peptide Type | Antimicrobial Peptide / Cathelicidin-Derived Peptide |
| Identity | MS molecular weight confirmed — every batch |
| COA | Janoshik-independent, publicly verifiable |
| Manufacture | In-house Fmoc SPPS — Qingdao, China |
| Storage | -20°C sealed | 2–8°C reconstituted (2–4 weeks) |
| Shelf Life | 24 months unopened |
Certificate of Analysis (COA)
Frequently Asked Questions
Frequently asked questions
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