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Antimicrobial Research
LL-37
Cathelicidin Antimicrobial Peptide
CAS 154947-66-7
≥99.0% purity verified
LL-37 is the only member of the cathelicidin family of antimicrobial peptides found in humans. Widely studied in antimicrobial and immunomodulatory research.
About LL-37
LL-37 is a 37-residue amphipathic alpha-helical peptide derived from the C-terminal domain of human cathelicidin hCAP18. It is the only human cathelicidin and has been extensively studied for its antimicrobial and immunomodulatory properties in research models.
Research applications
- Antimicrobial peptide pharmacology
- Immunomodulatory research
- Host defense peptide studies
- Membrane disruption mechanism research
| Product name | LL-37 |
| CAS number | 154947-66-7 |
| Purity | ≥99.0% (HPLC verified) |
| Appearance | White to off-white lyophilized powder |
| Format | Lyophilized powder |
| Testing | HPLC, LC-MS, endotoxin |
| Accreditation | ISO/IEC 17025 third-party lab |
| Origin | GMP-certified synthesis facility |
Storage guidelines
Lyophilized powder (unreconstituted)
- Store at −20°C in original sealed vial, away from light and moisture
- Stable for 24+ months under proper conditions
- Allow vial to reach room temperature before opening to avoid condensation
After reconstitution
- Store at −80°C; aliquot into single-use volumes to avoid freeze-thaw cycles
- Use within 4–6 weeks of reconstitution when stored at −80°C
Specific lot stability data provided on your Certificate of Analysis.
Independent testing & verification
Every batch is tested by an independent ISO/IEC 17025-accredited laboratory before release — separate from our synthesis facility.
Tests performed
- HPLC purity analysis — confirms ≥99.0% purity with full chromatogram
- LC-MS molecular weight confirmation — confirms correct molecular identity
- Endotoxin testing — LAL assay per USP standards
Your batch-specific COA is included with every order. Contact us to request a COA before purchase.
Select size
Order total
$29.95
≥99.0% purity, COA included
Dispatched within 48 hours or less
Free shipping over $250
GMP-sourced, 3rd-party tested