LL-37 for Sale — Lab-Tested LL-37 (cathelicidin) at 99.0% HPLC Purity
LL-37 is a cathelicidin antimicrobial supplied by Amino Fuel Labs for laboratory research in antimicrobial peptide research, biofilm and antibiotic-resistance studies, wound healing and re-epithelialization research. This listing covers a single lyophilized powder configuration, each released against a batch-specific third-party Certificate of Analysis reporting 99.2% purity by reversed-phase HPLC. Vials ship from our US facility with lot documentation matching the exact batch you receive. Research use only.
$70.00 — In stock, ships same business day
LL-37 Research Overview
LL-37 is the C-terminal active fragment of hCAP-18, the only cathelicidin produced by humans. It is constitutively expressed by neutrophils, epithelial cells and keratinocytes as a frontline component of the innate immune system.
Available LL-37 Research Strengths
- 10mg — $70.00 · SKU AFL-26 · In stock
Purity and Laboratory Testing
Lot AFL-LL37-10-2026-001 (tested 2026-04-08) of LL-37 was assayed by an independent laboratory using reversed-phase HPLC for purity and mass spectrometry for identity confirmation, returning 99.2% purity. The Certificate of Analysis shipped in the box matches the lot number printed on the vial.
Technical Product Information
- Molecular formula: C₂₀₅H₃₄₀N₆₀O₅₃
- Molecular weight: 4493.33 g/mol
- Sequence: LLGDFFRKSKEKIGKEFKRIVQRIKDFLRNLVPRTES
- Physical form: Lyophilized Powder
- Purity: 99.2% (RP-HPLC)
- Storage: -20°C (Freezer)
- Classification: Cathelicidin Antimicrobial
- Package contents: 1 × 10mg vial of LL-37, batch-matched Certificate of Analysis, and handling documentation.
Molecular formula C₂₀₅H₃₄₀N₆₀O₅₃, molecular weight 4493.33 g/mol, sequence LLGDFFRKSKEKIGKEFKRIVQRIKDFLRNLVPRTES. LL-37 disrupts bacterial, fungal and enveloped-viral membranes via amphipathic helix insertion. Beyond direct microbicidal activity it modulates chemotaxis, angiogenesis and wound re-epithelialization, and shows activity against biofilm formation in research models. LL-37 is supplied as lyophilized powder and is classified in our catalog under cathelicidin antimicrobial for cathelicidin antimicrobial work. Recorded research categories for this compound include antimicrobial peptide research, biofilm and antibiotic-resistance studies, wound healing and re-epithelialization research, innate immunity research. Handling notes: store at -20°c (freezer), protect the vial from light, and avoid repeated freeze–thaw cycles once reconstituted. Amino Fuel Labs publishes no dosing protocol for LL-37: the compound is distributed for in-vitro and preclinical laboratory research only and is not intended for human or veterinary use.
Certificate of Analysis
View the LL-37 Certificate of Analysis for the current lot, including HPLC purity and mass-spectrometry identity data.
Frequently Asked Questions
Why is LL-37 of interest in antibiotic-resistance research?
LL-37 disrupts membranes by physical mechanism rather than a single molecular target. Bacterial resistance evolves slowly to that mechanism, making cathelicidins a leading template for novel antimicrobial development.
What forms does LL-37 come in?
Lyophilized synthetic 37-amino-acid peptide identical to native human LL-37 cleaved from hCAP-18.
What does the COA cover?
≥99.2% HPLC purity, mass-spec confirmation, endotoxin testing and lot-specific batch documentation.
What is LL-37 studied for?
LL-37 appears in laboratory research covering antimicrobial research, wound healing, biofilm studies. All references describe in-vitro and preclinical study models only.
Does LL-37 include a Certificate of Analysis?
Yes. Each LL-37 lot ships with a batch-specific third-party Certificate of Analysis reporting 99.2% purity by reversed-phase HPLC alongside mass-spectrometry identity confirmation.
What form does LL-37 arrive in?
LL-37 is supplied as lyophilized powder in a sealed vial, packed with the lot documentation for the exact batch shipped.
Related Research Products
- TB-500 research peptide — Frequently referenced alongside LL-37 in thymosin peptide literature.
- BPC-157 research peptide — Frequently referenced alongside LL-37 in gastric pentadecapeptide literature.
- ARA-290 research peptide — Frequently referenced alongside LL-37 in epo-derived peptide literature.
- DSIP research peptide — Frequently referenced alongside LL-37 in neuropeptide literature.
Research Use Only
LL-37 is supplied strictly for laboratory research use. It is not a drug, food or cosmetic and is not intended for human or veterinary use, consumption, diagnosis, treatment or prevention of any condition. Amino Fuel Labs publishes no human dosing or administration guidance.
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