Description

Ll-37 Fk-13 is a bioactive peptide fragment derived from the human cathelicidin antimicrobial peptide LL-37. This compound is valued for its significant research and development potential in modulating immune responses and studying host defense mechanisms. It is primarily utilized by biotechnology and pharmaceutical R&D teams focused on immunology, antimicrobial peptides, and novel therapeutic discovery.

Application

• Biomedical Research: A key tool for studying the structure-activity relationship of the LL-37 peptide and its role in innate immunity.
• Drug Discovery: Serves as a lead compound or reference standard in the development of novel anti-infective or immunomodulatory agents.
• Mechanistic Studies: Used in vitro and in vivo to investigate peptide interactions with bacterial membranes and host cells.
• Biochemical Assays: Employed as a standard or reagent in assays measuring antimicrobial activity, chemotaxis, or cytokine induction.
• Academic Research: Fundamental research in microbiology, immunology, and peptide chemistry within university and institutional laboratories.

Basic Information

Product Name	Ll-37 Fk-13
CAS No.	717919-68-1
Molecular Formula	C81H138N24O19
Molecular Weight	1695.1 g/mol
Synonyms	FK-13; LL-37 (17-29); LL-37 Fragment; Cathelicidin LL-37 Fragment (17-29); Antimicrobial Peptide LL-37 Fragment; hCAP-18 Fragment; RK-31; Peptide LL-37 (17-29); FK13 Peptide
EINECS	Contact for details

Quality Control

Our Ll-37 Fk-13 is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity for research applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and other critical parameters. We adhere to GMP principles for peptide synthesis and purification, ensuring reliable performance in sensitive biological assays.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dry environment. For long-term storage, consider lyophilized powder under inert atmosphere. The product is hygroscopic (moisture-sensitive). Allow the vial to equilibrate to room temperature before opening to minimize moisture uptake.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (HPLC/MS)	Conforms
Purity (HPLC)	≥ 95%
Assay (HPLC)	≥ 98.0%
Amino Acid Composition	Conforms
Water Content (KF)	≤ 5.0%
Acetate Content (HPLC)	≤ 10.0%
Single Impurity (HPLC)	≤ 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.