Description

Dl-Alanyl-Dl-Methionine CAS NO 1999-43-5 is a synthetic dipeptide derivative of the essential amino acid methionine. This compound is valued for its role as a stable, bioavailable source of methionine, a critical nutrient for protein synthesis and metabolic functions. It is primarily utilized in the animal nutrition, pharmaceutical research, and specialty chemical synthesis sectors where precise amino acid supplementation and metabolic studies are required.

Application

• Animal Feed Additive: Used as a protected or alternative source of methionine to support optimal growth, feathering, and overall health in poultry, swine, and aquaculture.
• Pharmaceutical Intermediates: Serves as a key building block in the research and synthesis of more complex peptides and active pharmaceutical ingredients (APIs).
• Biochemical Research: Employed in cell culture media and metabolic pathway studies to investigate amino acid utilization and protein metabolism.
• Nutraceutical Formulations: Incorporated into specialized dietary supplements and clinical nutrition products requiring targeted amino acid delivery.
• Microbial Fermentation: Acts as a nutrient component in fermentation processes for the production of enzymes, antibiotics, and other bioproducts.

Basic Information

Product Name	Dl-Alanyl-Dl-Methionine
CAS No.	1999-43-5
Molecular Formula	C8H16N2O3S
Molecular Weight	220.29 g/mol
Synonyms	DL-Alanyl-DL-methionine; Methionine, N-L-alanyl-, DL-; N-(DL-Alanyl)-DL-methionine; Alanyl Methionine; DL-Ala-DL-Met; H-DL-Ala-DL-Met-OH; N-Alanyl methionine; (RS)-2-((RS)-2-Amino-propanoylamino)-4-methylsulfanyl-butyric acid
EINECS	217-900-4

Quality Control

Our Dl-Alanyl-Dl-Methionine is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identification, assay, and impurity profiling, to ensure it meets high-purity standards suitable for research and industrial applications. A Certificate of Analysis (COA) detailing specific results for purity, heavy metals, residual solvents, and related substances is provided with every shipment.

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). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation and clumping.

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 (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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