Description

H-Gln-Lys-Arg-Pro-Ser-Gln-Arg-Ser-Lys-Tyr-Leu-Oh is a synthetic peptide sequence with the CAS registry number 126768-94-3. This compound is valued for its specific amino acid sequence, which can be utilized as a key intermediate or active research component in advanced biochemical applications. It is primarily required by biotechnology, pharmaceutical research, and diagnostic development sectors for applications in peptide synthesis, biochemical assays, and as a reference standard.

Application

• Biopharmaceutical Research: Used as a critical intermediate in the synthesis of longer, more complex therapeutic peptides or peptidomimetics.
• Biochemical Assay Development: Serves as a specific substrate or inhibitor in enzymatic studies and activity assays to understand biological pathways.
• Diagnostic Reagent Production: Employed in the development of immunoassays and diagnostic kits where a specific peptide sequence is required for antibody binding or calibration.
• Cell Culture & Signal Transduction Studies: Acts as a tool compound to investigate cell signaling mechanisms, receptor-ligand interactions, and cellular responses.
• Peptide Library Construction: A valuable building block for creating combinatorial peptide libraries used in drug discovery and high-throughput screening.
• Reference Standard: Provides a high-purity standard for quality control and analytical method validation in peptide manufacturing and research laboratories.

Basic Information

Product Name	H-Gln-Lys-Arg-Pro-Ser-Gln-Arg-Ser-Lys-Tyr-Leu-Oh
CAS No.	126768-94-3
Molecular Formula	C64H110N24O19
Molecular Weight	1471.7 g/mol
Synonyms	Gln-Lys-Arg-Pro-Ser-Gln-Arg-Ser-Lys-Tyr-Leu; QKRPSQRSKYL-OH; H-QKRPSQRSKYL-OH; Peptide QKRPSQRSKYL; Glutaminyl-Lysyl-Arginyl-Prolyl-Seryl-Glutaminyl-Arginyl-Seryl-Lysyl-Tyrosyl-Leucine; (S)-2-((S)-2-((S)-2-((S)-2-((S)-2-((S)-2-((S)-2-((S)-2-((S)-2-((S)-2-((S)-2-Amino-4-carbamoylbutanamido)-5-(diaminomethylideneamino)pentanamido)-3-(diaminomethylideneamino)propanamido)pyrrolidine-2-carboxamido)-3-hydroxypropanamido)-4-carbamoylbutanamido)-3-(diaminomethylideneamino)propanamido)-3-hydroxypropanamido)-5-(diaminomethylideneamino)pentanamido)-3-(4-hydroxyphenyl)propanamido)-4-methylpentanoic acid
EINECS	Contact for details

Quality Control

Our peptide products are manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and MS for identity confirmation, to ensure they meet exacting research and development standards. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with every shipment and are available upon request.

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 short-term use, store at 2-8°C.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms to reference standard
Purity (HPLC)	≥ 95.0%
Assay (HPLC)	≥ 97.0% (on anhydrous basis)
Water Content (KF)	≤ 5.0%
Peptide Content	≥ 80.0%
Single Impurity (HPLC)	≤ 1.0%
Acetate Content (IC)	Contact for details

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