Description

Glycine, L-arginyl-L-arginyl-L-arginyl-L-glutaminyl-L-arginyl-L-arginyl-L-lysyl-L-lysyl-L-arginylglycylglycyl-L-α-aspartyl-L-isoleucyl-L-methionylglycyl-L-α-glutamyl-L-tryptophylglycyl-L-asparaginyl-L-α-glutamyl-L-isoleucyl-L-phenylalanylglycyl-L-alanyl-L-isoleucyl-L-alanylglycyl-L-phenylalanyl-L-leucyl- is a complex, high-purity synthetic peptide with the CAS number 923954-79-4. This compound is of significant interest for advanced biomedical research and pharmaceutical development due to its specific amino acid sequence and potential bioactive properties. It is primarily utilized by research institutions and biotech companies engaged in drug discovery, peptide therapeutics, and biochemical assay development.

Application

• Pharmaceutical Research & Development: As a key intermediate or reference standard in the discovery and optimization of novel peptide-based therapeutics.
• Biochemical Reagent: For use in enzymatic studies, receptor-ligand binding assays, and other in-vitro diagnostic applications.
• Cell Biology Studies: Investigation of cellular signaling pathways, protein-protein interactions, and biological activity modulation.
• Cosmeceutical R&D: Exploration of potential bioactive properties for advanced skincare and dermatological formulations.
• Academic Research: Serving as a critical tool in university and institutional labs for fundamental studies in biochemistry and molecular biology.
• Quality Control Standard: Acting as a high-purity reference material for analytical method development and validation in QC laboratories.

Basic Information

Product Name	Glycine, L-arginyl-L-arginyl-L-arginyl-L-glutaminyl-L-arginyl-L-arginyl-L-lysyl-L-lysyl-L-arginylglycylglycyl-L-α-aspartyl-L-isoleucyl-L-methionylglycyl-L-α-glutamyl-L-tryptophylglycyl-L-asparaginyl-L-α-glutamyl-L-isoleucyl-L-phenylalanylglycyl-L-alanyl-L-isoleucyl-L-alanylglycyl-L-phenylalanyl-L-leucyl-
CAS No.	923954-79-4
Molecular Formula	C₁₆₀H₂₇₀N₆₈O₄₅S
Molecular Weight	~3776.2 g/mol
Synonyms	Peptide R15; Arg-rich Peptide; Synthetic Oligopeptide; GRRRQRRKKRGGDIMGE W G N E I F G A I A G F L; CAS 923954-79-4; L-Leucine, glycyl-L-phenylalanyl-L-alanylglycyl-L-isoleucyl-L-alanyl-L-phenylalanylglycyl-L-isoleucyl-L-α-glutamyl-L-asparaginylglycyl-L-tryptophyl-L-α-glutamylglycyl-L-methionyl-L-isoleucyl-L-α-aspartylglycylglycyl-L-arginyl-L-lysyl-L-lysyl-L-arginyl-L-arginyl-L-glutaminyl-L-arginyl-L-arginyl-L-arginyl-; Custom Peptide 923954-79-4
EINECS	Contact for details

Quality Control

Our synthetic peptide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity, suitable for sensitive research applications. Production adheres to cGMP guidelines where applicable. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We support our clients with full analytical traceability and documentation.

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 minimize moisture absorption. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (HPLC/MS)	Conforms to structure
Purity (HPLC)	≥ 95%
Assay (Peptide Content)	≥ 80%
Single Impurity (HPLC)	≤ 1.0%
Amino Acid Analysis	Within ± 10% of theoretical
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.