Description

Lysyl-Phenylalanyl-Phenylalanyl-Phenylalanyl-Isoleucyl-Isoleucyl-Tryptophyl Methyl Ester CAS NO 118593-84-3 is a synthetic heptapeptide derivative, specifically a methyl ester of a lysine-containing peptide sequence. This compound is of significant interest in advanced pharmaceutical research and development, particularly as a key intermediate or a model compound for studying peptide structure-activity relationships. It serves a critical role for researchers and manufacturers in the life sciences sector who require high-purity, well-characterized peptide building blocks. Its defined sequence makes it valuable for applications in drug discovery, proteomics, and biochemical assay development.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of more complex therapeutic peptides or peptidomimetics.
• Biochemical Research: Used as a standard or reference compound in proteomics, enzyme kinetics studies, and receptor-ligand interaction assays.
• Drug Discovery: Acts as a lead compound or a template for structure-activity relationship (SAR) studies to optimize pharmacological properties.
• Academic Research: Employed in university and institutional labs for studying peptide synthesis, folding, and stability.
• Diagnostic Development: Potential use in the development of diagnostic assays or imaging agents targeting specific biological pathways.
• Cosmeceutical R&D: Investigated for potential bioactive properties in high-end skincare and cosmetic formulations.

Basic Information

Product Name	Lysyl-Phenylalanyl-Phenylalanyl-Phenylalanyl-Isoleucyl-Isoleucyl-Tryptophyl Methyl Ester
CAS No.	118593-84-3
Molecular Formula	C66H82N10O9
Molecular Weight	1143.4 g/mol
Synonyms	Lys-Phe-Phe-Phe-Ile-Ile-Trp-OMe; KFFFIIW-OMe; H-Lys-Phe-Phe-Phe-Ile-Ile-Trp-OMe; Heptapeptide Methyl Ester (Lys, Phe3, Ile2, Trp); N2-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-lysyl-N-[N-[N-[N-[N-[N-[(1S)-1-[(1H-indol-3-yl)methyl]-2-methoxy-2-oxoethyl]-L-isoleucyl]-L-isoleucyl]-L-phenylalanyl]-L-phenylalanyl]-L-phenylalanine; Fmoc-Lys-Phe-Phe-Phe-Ile-Ile-Trp-OMe (if Fmoc-protected); (S)-Methyl 2-(2-(2-(2-(2-(2-(6-amino-2-((S)-2-((S)-2-((S)-2-((S)-2-((S)-2-((S)-1-methoxy-3-(1H-indol-3-yl)-1-oxopropan-2-ylamino)-3-methyl-1-oxopentan-2-ylamino)-3-methyl-1-oxopentan-2-ylamino)-3-phenyl-1-oxopropan-2-ylamino)-3-phenyl-1-oxopropan-2-ylamino)-3-phenyl-1-oxopropan-2-ylamino)hexanamido)acetamido)acetamido)acetamido)acetamido)acetate (IUPAC-style)
EINECS	Contact for details

Quality Control

Our peptide products are manufactured under strict quality management systems. Each batch of Lysyl-Phenylalanyl-Phenylalanyl-Phenylalanyl-Isoleucyl-Isoleucyl-Tryptophyl Methyl Ester undergoes comprehensive analytical testing, including HPLC for purity and MS for identity confirmation, to ensure it meets exacting standards for research and development. We provide full traceability and a detailed Certificate of Analysis (COA) with every shipment, which includes data on purity, amino acid analysis, and residual solvent content. Specifications can be aligned with client requirements for specific research or cGMP-grade applications.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a freezer. This product is hygroscopic (moisture-sensitive). Allow the vial to reach room temperature in a desiccator before opening to prevent condensation and hydrolysis. For long-term storage, keep under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC-MS)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Assay (Amino Acid Analysis)	≥ 90.0%
Water Content (KF)	≤ 5.0%
Single Impurity (HPLC)	≤ 2.0%
Heavy Metals	≤ 20 ppm

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