Description

Lys-Leu Monohydrobromide is a high-purity dipeptide derivative, specifically the hydrobromide salt of the lysyl-leucine dipeptide. This compound serves as a critical building block and intermediate in advanced pharmaceutical research and peptide synthesis. It is primarily utilized by research institutions and manufacturers in the pharmaceutical, biotechnology, and life science sectors for developing novel therapeutic agents and biochemical tools.

Application

• Pharmaceutical Intermediate: A key raw material in the synthesis of complex peptide-based drugs and active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a standard or reagent in proteomics research, enzyme studies, and metabolic pathway analysis.
• Peptide Synthesis: An essential protected dipeptide building block for solid-phase and solution-phase peptide synthesis (SPPS).
• Nutraceutical Development: Investigated for potential applications in specialized nutritional supplements and functional foods.
• Cosmetic Peptides: A potential precursor for bioactive peptides used in advanced skincare and cosmetic formulations.

Basic Information

Product Name	Lys-Leu Monohydrobromide
CAS No.	19405-26-6
Molecular Formula	C12H25N3O3 • HBr
Molecular Weight	340.26 g/mol (free base: 259.35)
Synonyms	L-Lysyl-L-leucine hydrobromide; Lys-Leu HBr; H-Lys-Leu-OH • HBr; L-Leucine, L-lysyl-, hydrobromide; N2-[(2S)-2-Amino-6-carboxyhexyl]-L-leucinamide hydrobromide; Peptide building block Lys-Leu; Lys-Leu dipeptide salt
EINECS	Contact for details

Quality Control

Our Lys-Leu Monohydrobromide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing including HPLC for purity, chiral analysis, and residual solvent screening to ensure it meets stringent specifications for research and cGMP-grade applications. A Certificate of Analysis (COA) with detailed chromatographic data is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to maintain stability and purity. For long-term storage, consider desiccated conditions.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Optical Rotation	[α]D20: Contact for details
Water Content (KF)	≤ 1.0%
Residual Solvents (GC)	Meets ICH guidelines
Heavy Metals	< 10 ppm

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