Description

Dl-Methionine CAS NO 59-51-8 is a vital sulfur-containing amino acid essential for protein synthesis and metabolic functions. It serves as a critical nutritional supplement and feed additive to ensure optimal growth and health in livestock and poultry. This compound is indispensable for manufacturers in the animal feed, pharmaceutical, and food fortification industries, where consistent quality and reliable supply are paramount.

Application

• Animal Feed Additive: A primary source of essential sulfur amino acids (methionine) in poultry, swine, and aquaculture feed to promote growth, improve feed efficiency, and support feathering and wool production.
• Pharmaceutical Intermediates: Used in the synthesis of various pharmaceuticals, including parenteral nutrition solutions and drugs requiring sulfur-containing moieties.
• Food & Beverage Fortification: Employed as a nutritional supplement to enhance the amino acid profile in human food products, dietary supplements, and clinical nutrition formulas.
• Biochemical Research: Utilized as a standard or reagent in microbiological media and life science research for studying amino acid metabolism and protein chemistry.
• Cosmetic & Personal Care: Incorporated into formulations for hair and skin care products, leveraging its role as a precursor in keratin synthesis.

Basic Information

Product Name	Dl-Methionine
CAS No.	59-51-8
Molecular Formula	C5H11NO2S
Molecular Weight	149.21 g/mol
Synonyms	DL-2-Amino-4-(methylthio)butyric acid; (±)-Methionine; DL-Methionine; DL-α-Amino-γ-methylmercaptobutyric acid; Methionine, DL-; Racemic Methionine; Met; Acimethin; MHA precursor
EINECS	200-432-1

Quality Control

Our Dl-Methionine is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets specifications for identity, purity, and safety. We can supply grades compliant with Feed Grade, Food Chemical Codex (FCC), and pharmaceutical standards as required. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.5%
Specific Rotation	-0.1° to +0.1°
Loss on Drying	≤ 0.5%
Residue on Ignition (Sulfated Ash)	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 2 ppm

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