Description

H-Asp-Ala-His-Lys-Oh is a synthetic tetrapeptide with the sequence Aspartyl-Alanyl-Histidyl-Lysine. This compound is a valuable building block in peptide synthesis and biochemical research, offering a specific sequence that can be used to study protein-protein interactions or mimic bioactive regions of larger proteins. It is primarily utilized by research institutions and pharmaceutical companies engaged in peptide-based drug discovery, proteomics, and the development of diagnostic tools.

Application

• Pharmaceutical Research: As a key intermediate in the synthesis of longer, more complex therapeutic peptides.
• Biochemical Studies: For investigating enzyme-substrate interactions, receptor binding, and signal transduction pathways.
• Proteomics & Diagnostics: Used as a standard or reference compound in mass spectrometry and chromatographic assays.
• Cosmeceutical Development: Potential use as a bioactive ingredient in skincare formulations targeting specific skin functions.
• Academic Research: A tool for studying peptide structure, stability, and function in university and institutional labs.

Basic Information

Product Name	H-Asp-Ala-His-Lys-Oh
CAS No.	111543-77-2
Molecular Formula	C19H31N7O8
Molecular Weight	485.49 g/mol
Synonyms	Aspartyl-Alanyl-Histidyl-Lysine; Asp-Ala-His-Lys; H-Asp-Ala-His-Lys-OH; Tetrapeptide Asp-Ala-His-Lys; L-Aspartyl-L-alanyl-L-histidyl-L-lysine; DAHK; DAHK Peptide; Antioxidant Tetrapeptide
EINECS	Contact for details

Quality Control

Our H-Asp-Ala-His-Lys-Oh is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, mass spectrometry for identity confirmation, and tests for residual solvents and moisture content. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to ensure traceability and compliance with your research or development protocols.

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.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Single Impurity (HPLC)	≤ 2.0%
Water Content (KF)	≤ 5.0%
Peptide Content	≥ 80.0%
Acetate Content (HPLC)	≤ 10.0%

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