Description

Dl-Ethionine CAS NO 67-21-0 is a synthetic amino acid analog of methionine, widely recognized for its role in biochemical research and industrial applications. This compound is a crucial reagent for studying methionine metabolism, methylation processes, and liver function in experimental models. It serves as a vital building block and research chemical for pharmaceutical development, nutritional studies, and life science research. Industries ranging from academic research institutions to contract manufacturing organizations rely on its consistent quality for reproducible scientific and production outcomes.

Application

• Biochemical & Pharmaceutical Research: A key tool for inducing experimental models of liver injury and studying methionine metabolism, methylation pathways, and hepatocarcinogenesis.
• Nutritional Science Studies: Used to investigate amino acid antagonism, protein synthesis, and the metabolic effects of methionine deficiency in animal models.
• Reference Standard: Employed as a high-purity analytical standard in HPLC, LC-MS, and other chromatographic methods for quality control and method validation.
• Life Science Reagent: Serves as a critical component in cell culture media studies and metabolic pathway analysis in biotechnology applications.
• Chemical Synthesis: Acts as a chiral building block or precursor in the synthesis of more complex peptides, derivatives, and specialized fine chemicals.

Basic Information

Product Name	Dl-Ethionine
CAS No.	67-21-0
Molecular Formula	C6H13NO2S
Molecular Weight	163.24 g/mol
Synonyms	DL-2-Amino-4-(ethylthio)butyric acid; (±)-Ethionine; Ethionine, DL-; NSC 7514; DL-α-Amino-γ-ethylmercaptobutyric acid; Ethionine (DL-); rac-Ethionine; DL-Ethionine
EINECS	200-647-7

Quality Control

Our Dl-Ethionine is manufactured under a strict quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including identification (IR), assay (HPLC), and impurity profiling, to meet exacting research-grade specifications. A detailed Certificate of Analysis (COA) documenting purity, physical characteristics, and test results is provided with every shipment to support your quality assurance protocols.

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); the container must be kept tightly sealed in a dry environment to prevent absorption of moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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