LL-37

LL-37

Parameter Specification
Product Name LL-37
CAS Number 154947-66-7
Molecular Formula C205H340N60O53
Molecular Weight 4493.3 g/mol
Appearance White to off-white lyophilized powder
Assay (HPLC) ≥98.0%
Solubility Soluble in water and aqueous buffers
Package 1 g / 5 g / 10 g / 100 g

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LL-37 Structure

Synonyms: LL-37, CAP-18, Cathelicidin LL-37, Human Cathelicidin Antimicrobial Peptide, hCAP18, LL37, FALL-39, Cationic Antimicrobial Protein 18

LL-37 is a synthetic 37-amino-acid host defense peptide derived from the human cathelicidin precursor hCAP18. We supply it as a sterile-filtered lyophilized powder, typically ≥98% pure by HPLC, for research and formulation development.

Buyers source LL-37 for antimicrobial and immunomodulatory studies, often as a reference standard or as an active in topical and injectable prototypes. It ships from stock with full documentation and is available in gram to multi-gram quantities.

Applications & Formulation Use

Formulators use LL-37 in antimicrobial gel and cream prototypes, wound-care dressings, and in vitro assays for biofilm disruption. It also appears in cell-culture media supplements and in studies on innate immune response. Because it is a cationic peptide, it interacts with anionic excipients and surfaces; formulation work should account for this compatibility.

Packaging & Handling

  • Packaging: Supplied in amber glass vials or as bulk powder in sealed containers, purged with inert gas.
  • Storage: Store at -20°C, protected from light and moisture.
  • Handling: Equilibrate to room temperature before opening to prevent condensation; use immediately after reconstitution.

Bulk Supply & Ordering

  • MOQ: 1 g
  • Lead time: 3-5 business days (stock items)
  • Documentation: COA, MSDS, TDS

Contact & Ordering Information

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