Description

Dl-Alanyl-Dl-Leucine CAS NO 1999-42-4 is a synthetic dipeptide composed of alanine and leucine amino acid residues. This compound serves as a versatile building block and intermediate in advanced biochemical synthesis and research. It is primarily utilized by manufacturers and researchers in the pharmaceutical, nutraceutical, and life science sectors for developing peptide-based therapeutics, diagnostic agents, and specialized biochemical tools.

Application

• Pharmaceutical Intermediate: A key starting material for the synthesis of more complex therapeutic peptides and peptidomimetics.
• Biochemical Research: Used as a standard or substrate in enzymatic studies, metabolic pathway analysis, and proteomics research.
• Nutraceutical Development: Incorporated into specialized formulations for nutritional science and performance supplement research.
• Cosmetic Peptide Synthesis: Serves as a precursor in the production of bioactive peptides for advanced skincare and cosmetic applications.
• Academic & Industrial R&D: Employed in organic synthesis laboratories for method development and as a model compound in peptide chemistry studies.

Basic Information

Product Name	Dl-Alanyl-Dl-Leucine
CAS No.	1999-42-4
Molecular Formula	C9H18N2O3
Molecular Weight	202.25 g/mol
Synonyms	DL-Alanyl-DL-leucine; H-DL-Ala-DL-Leu-OH; (RS)-2-((RS)-2-Aminopropanamido)-4-methylpentanoic acid; Alanyl-leucine, DL-, DL-Ala-DL-Leu; Alanine, N-(1-carboxy-3-methylbutyl)-, DL-; UNII-8Q3KQN5J6S; NSC 3349; 2-(2-Aminopropanamido)-4-methylpentanoic acid (racemic)
EINECS	217-900-1

Quality Control

Our Dl-Alanyl-Dl-Leucine is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing specific results is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Specific Rotation	Contact for details

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