Description

D-Leucyl-L-Tyrosine is a high-purity dipeptide composed of the amino acids D-leucine and L-tyrosine. This specific stereoisomer is a valuable building block in advanced pharmaceutical research and peptide synthesis. It is primarily utilized by research institutions and manufacturers in the life sciences sector for developing novel therapeutic agents and biochemical tools. Its defined structure ensures consistency and reliability in complex synthetic pathways.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of peptide-based drugs and active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a standard or substrate in enzymatic studies, metabolic pathway analysis, and receptor-ligand interaction assays.
• Peptide Synthesis: Serves as a protected or unprotected building block in solid-phase and solution-phase peptide synthesis for creating custom sequences.
• Nutraceutical Development: Investigated for potential applications in specialized nutritional supplements and bioactive compounds.
• Cosmetic Peptides: A potential ingredient in the development of high-end cosmetic peptides targeting skin conditioning and anti-aging properties.

Basic Information

Product Name	D-Leucyl-L-Tyrosine
CAS No.	3303-29-5
Molecular Formula	C15H22N2O4
Molecular Weight	294.35 g/mol
Synonyms	D-Leu-L-Tyr; (2R)-2-[[(2S)-2-Amino-4-methylpentanoyl]amino]-3-(4-hydroxyphenyl)propanoic acid; Leucyltyrosine; H-D-Leu-L-Tyr-OH; L-Tyrosine, D-leucyl-; D-Leu-L-Tyrosine; D-Leu-Tyr-OH; D-Leu-Tyrosine
EINECS	221-983-5

Quality Control

Our D-Leucyl-L-Tyrosine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, chiral analysis for stereochemical integrity, and identity confirmation via IR and NMR. Certificates of Analysis (COA) detailing all specifications are provided to ensure traceability and compliance with your research or cGMP guidelines.

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 material is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	Specific range provided on COA
Chiral Purity (HPLC)	≥ 99.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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