Description

H-Lys-Lys-Pro-Tyr-Ile-Leu-Oh is a synthetic hexapeptide with the CAS registry number 139026-64-5. This compound is a valuable research-grade biochemical building block, essential for studying peptide structure-activity relationships and biological signaling pathways. It is primarily utilized by researchers and developers in the pharmaceutical, biotechnology, and life science sectors for applications in drug discovery and biochemical assay development.

Application

• Pharmaceutical Research: Serves as a key intermediate or reference standard in the development of novel peptide-based therapeutics and diagnostic agents.
• Biochemical Assays: Used as a substrate or inhibitor in enzymatic studies to investigate protease activity and specificity.
• Structure-Activity Relationship (SAR) Studies: A critical tool for medicinal chemists to understand how peptide sequence modifications affect biological function and potency.
• Academic Research: Employed in university and institutional labs for fundamental research in biochemistry, molecular biology, and cell signaling.
• Peptide Library Synthesis: Acts as a component in the construction of combinatorial peptide libraries for high-throughput screening.
• Bioconjugation: The lysine residues provide reactive amine groups for conjugation with other molecules, such as fluorophores or carrier proteins, for probe development.

Basic Information

Product Name	H-Lys-Lys-Pro-Tyr-Ile-Leu-Oh
CAS No.	139026-64-5
Molecular Formula	C38H65N9O8
Molecular Weight	775.98 g/mol
Synonyms	Lys-Lys-Pro-Tyr-Ile-Leu; L-Lysyl-L-lysyl-L-prolyl-L-tyrosyl-L-isoleucyl-L-leucine; Hexapeptide H-Lys-Lys-Pro-Tyr-Ile-Leu-OH; KKPYIL; (6S,9S,12S,15S,18S,21S)-6,9,21-Tris(2-aminoethyl)-12-(2-methylpropyl)-15-(4-hydroxybenzyl)-18-(1-methylethyl)-3,4,8,11,14,17,20-heptaoxo-1,2,5,7,10,13,16,19-octaazacyclotricosane-23-carboxylic acid; Peptide KKPYIL; CAS 139026-64-5
EINECS	Contact for details

Quality Control

Our H-Lys-Lys-Pro-Tyr-Ile-Leu-Oh is manufactured under strict 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 industry-standard quality practices suitable for research and development use.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dry, cool place. This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability. Allow the vial to equilibrate to room temperature in a desiccator before opening to prevent condensation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms
Purity (HPLC)	≥ 95.0%
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 5.0%
Single Impurity (HPLC)	≤ 1.0%

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