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LL-37

In Stock

$90.00

Verified Test Results

Every batch, independently verified.

Each batch is analyzed by an ISO/IEC 17025 accredited third-party laboratory before it ships. This is the released report for the current batch, exactly as the lab signed it.

VL
Vanguard Laboratory
Independent, ISO/IEC 17025 accredited
Certificate of Analysis
99.24 + 0.18%
Purity by HPLC
Lot260623LL53
Tested7/20/2026
Labeled5 mg
Measured4.51 mg
ISO 17025 Accredited 7× Tested
View signed certificate
Full QC Panel ✓ 1 passed
Chromatographic Purity
99.24% + 0.18%
Assay
4.51 mg
Arsenic (As)
LOQ 0.01 ppm (ICP-MS)
ND
Cadmium (Cd)
LOQ 0.01 ppm (ICP-MS)
ND
Lead (Pb)
LOQ 0.01 ppm (ICP-MS)
ND
Mercury (Hg)
LOQ 0.005 ppm (ICP-MS)
ND
Sterility
USP 71
Pass - No Growth Detected
PASS

LL-37

Immune, Respiratory & Cellular Defense Research

LL-37  a naturally occurring antimicrobial peptide studied for its role in innate immune function, mucosal defense, and tissue repair. The intranasal route is being researched for its potential to support respiratory health, maintain mucosal integrity, and promote a balanced immune response while supporting healthy tissue regeneration.

Key Research Areas

    • Supports innate immune function and mucosal defense
    • Promotes respiratory and nasal tissue health
    • Encourages tissue repair and cellular regeneration
    • Helps maintain a balanced inflammatory response
    • Studied for immune resilience, recovery, and overall cellular health

For Research Use Only. Not for human consumption.

Technical Specifications

Compound Information

Molecular Profile

What Is LL-37?

A 37-amino-acid human cathelicidin peptide with broad-spectrum antimicrobial and immunomodulatory activity, generated from cleavage of the hCAP18 precursor protein.

AntimicrobialImmune Modulation
TypeAntimicrobial peptide
CAS Number154947-66-7
Molecular FormulaC205H340N60O53
Molecular Weight4493.3 g/mol
Amino Acids37
Sequence
Leu-Leu-Gly-Asp-Phe-Phe-Arg-Lys-Ser-Lys-Glu-Lys-Ile-Gly-Lys-Glu-Phe-Lys-Arg-Ile-Val-Gln-Arg-Ile-Lys-Asp-Phe-Leu-Arg-Asn-Leu-Val-Pro-Arg-Thr-Glu-Ser
PubChem Database
Storage Requirements

Stability Information

Store frozen as lyophilized powderProtect from light and moistureReconstitute with sterile or bacteriostatic water
-20°C
Lyophilized (powder)
stable long-term
2-8°C
Reconstituted
use within 1-2 weeks

Store the lyophilized powder frozen and protected from light; once reconstituted, keep refrigerated and use promptly.