Description

Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Sar-Leu-Met-Nh2 is a synthetic peptide with the CAS number 77128-75-7, designed for high-purity research and development applications. This compound is valued for its specific sequence, which makes it a critical tool for biochemical studies, particularly in signal transduction and receptor-ligand interaction research. It is primarily utilized by pharmaceutical R&D laboratories, academic research institutions, and biotechnology companies focused on peptide-based therapeutic discovery and proteomics.

Application

• Biochemical Research: Used as a reference standard or active agent in studies of cellular signaling pathways and enzyme-substrate interactions.
• Pharmaceutical R&D: Serves as a key intermediate or lead compound in the discovery and development of novel peptide-based therapeutics.
• Proteomics & Biomarker Studies: Employed in mass spectrometry and chromatography as a calibrant or model peptide for method development.
• Receptor Binding Assays: Utilized to investigate the affinity and specificity of peptide-receptor interactions in vitro.
• Academic Research: A vital tool for university laboratories conducting fundamental research in biochemistry, molecular biology, and medicinal chemistry.
• Peptide Library Synthesis: Acts as a building block or template for the creation of focused peptide libraries for screening purposes.

Basic Information

Product Name	Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Sar-Leu-Met-Nh2
CAS No.	77128-75-7
Molecular Formula	C68H104N20O15S
Molecular Weight	1497.7 g/mol
Synonyms	RPKPQFFSarLM-NH2; Substance P (6-11), Sar9-Met11; H-Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Sar-Leu-Met-NH2; Sar9, Met11-Substance P (6-11); [Sar9,Met(O2)11]-Substance P; [pGlu6,Sar9,Met(O2)11]-Substance P(6-11); Neurokinin Receptor Peptide Fragment; SP (6-11) analog
EINECS	Contact for details

Quality Control

Our Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Sar-Leu-Met-Nh2 is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, MS for identity confirmation, and amino acid analysis. Certificates of Analysis (COA) detailing purity, solvent content, and other critical parameters are provided to ensure traceability and compliance with your research or development specifications.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dry environment. This product is hygroscopic (moisture-sensitive). For long-term storage, keep desiccated. Allow the vial to reach room temperature before opening to minimize moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms to reference standard
Purity (HPLC)	≥ 95.0%
Single Impurity (HPLC)	≤ 1.0%
Water Content (KF)	≤ 5.0%
Peptide Content	≥ 80.0%
Amino Acid Analysis	Within ± 10% of theoretical

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