What Is LL-37?

# What Is LL-37? LL-37 is an antimicrobial peptide studied for immune research. ## Key Facts - Type: Antimicrobial peptide - Research status: Preclinical / Laboratory research - Molecular information: C205H340N60O53 - Available specifications: 5mg - Testing: HPLC, Mass Spectrometry ## Detailed Overview LL-37 is a 37-amino acid cationic antimicrobial peptide derived from the precursor protein cathelicidin. It has been studied in immunology and microbiology research for its broad-spectrum antimicrobial activity and its role in innate immune defense. Published research has investigated its membrane disruption mechanisms and immunomodulatory properties. RaySunPeptide supplies LL-37 for qualified research and laboratory applications. LL-37 is an antimicrobial peptide studied for immune research. It is supplied by RaySunPeptide as a research-grade compound for qualified laboratory and research applications. Published research on LL-37 remains at the preclinical and laboratory investigation stage. Researchers studying LL-37 have access to peer-reviewed publications through PubMed that document various aspects of its chemical properties and biological activity. RaySunPeptide manufactures and supplies LL-37 with the following quality assurances: - **Purity**: ≥98% verified by HPLC - **Testing**: Each batch undergoes HPLC and Mass Spectrometry analysis - **Documentation**: Certificates of Analysis (COA) available upon request - **Packaging**: Available in multiple vial configurations > **Note**: LL-37 is supplied for qualified research and laboratory purposes only. It is not intended for human consumption, therapeutic use, or any application outside of controlled research environments. ## References - PubMed database (pubmed.ncbi.nlm.nih.gov) for peer-reviewed research publications on LL-37 - RaySunPeptide product specifications and Certificates of Analysis ## Related Products - [Thymalin](/products/thymalin) - [Thymosin Alpha-1](/products/thymosin-alpha-1) - [VIP](/products/vip) - [KPV](/products/kpv) ## About RaySunPeptide RaySunPeptide is a peptide manufacturer and supplier based in Southeast Asia, providing research-grade peptides, proteins, and related compounds for qualified research, laboratory, and B2B applications. All products undergo rigorous quality control testing and are supplied with Certificates of Analysis (COA).