Description

L-Arginine, L-tryptophyl-L-tyrosyl-L-prolyl-L-tryptophyl-L-methionyl-L-lysyl-L-lysyl-L-histidyl-L-histidyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl- is a complex, high-purity synthetic peptide with a specific sequence of amino acids. This compound is of significant interest for advanced research and development in the life sciences, particularly for its potential role in studying protein-protein interactions and biological signaling pathways. It is primarily utilized by pharmaceutical R&D laboratories, biotechnology companies, and academic institutions engaged in peptide-based drug discovery and biochemical research.

Application

• Pharmaceutical Research & Development: As a key intermediate or reference standard in the discovery and development of novel peptide therapeutics.
• Biochemical Research: For studying enzyme kinetics, receptor binding assays, and other fundamental biological processes involving specific peptide sequences.
• Cell Biology Studies: Investigation of cellular uptake mechanisms, intracellular signaling, and the effects of specific peptide motifs on cell function.
• Proteomics & Molecular Biology: Use as a tool compound or a calibrant in mass spectrometry and other analytical techniques for protein/peptide analysis.
• Antibody & Diagnostic Development: Potential use as an antigen or hapten for generating specific antibodies in immunoassay development.
• Cosmeceutical R&D: Exploration of bioactive peptides for potential applications in advanced skincare formulations.

Basic Information

Product Name	L-Arginine, L-tryptophyl-L-tyrosyl-L-prolyl-L-tryptophyl-L-methionyl-L-lysyl-L-lysyl-L-histidyl-L-histidyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-L-arginyl-
CAS No.	917953-08-3
Molecular Formula	C185H294N74O30S
Molecular Weight	~4045.8 g/mol
Synonyms	Arg-Trp-Tyr-Pro-Trp-Met-Lys-Lys-His-His-Arg-Arg-Arg-Arg-Arg-Arg-Arg-Arg; R-W-Y-P-W-M-K-K-H-H-R-R-R-R-R-R-R-R; H-Arg-Trp-Tyr-Pro-Trp-Met-Lys-Lys-His-His-Arg-Arg-Arg-Arg-Arg-Arg-Arg-Arg-OH; Peptide Sequence 917953-08-3; Polyarginine-tagged Tryptophan-Tyrosine-Proline-Tryptophan-Methionine-Lysine-Lysine-Histidine-Histidine Peptide; Heptadecapeptide with R-W-Y-P-W-M-K-K-H-H-R-R-R-R-R-R-R-R sequence
EINECS	Contact for details

Quality Control

Our synthetic peptides are manufactured under strict quality management systems. Each batch undergoes comprehensive analytical characterization using techniques including HPLC for purity, Mass Spectrometry (MS) for identity confirmation, and Amino Acid Analysis (AAA). We provide a detailed Certificate of Analysis (COA) with every shipment, which includes batch-specific data on purity, content, and residual solvents. Specifications can be tailored to meet the requirements of GMP or research-grade standards.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below for long-term stability. This product is hygroscopic (moisture-sensitive). Allow the vial to equilibrate to room temperature in a desiccator before opening to prevent condensation and moisture uptake. For optimal stability, store under inert atmosphere after opening.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (MS)	Consistent with theoretical molecular weight
Purity (HPLC)	≥ 95%
Peptide Content	≥ 80% (by AAA)
Single Impurity (HPLC)	≤ 1.0%
Water Content (KF)	≤ 5.0%
Acetate Content (HPLC)	≤ 10.0%

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