Description

Ochratoxin A-o-Methyl, Methyl Ester CAS NO 4825-87-0 is a chemically modified derivative of Ochratoxin A, a mycotoxin produced by certain Aspergillus and Penicillium fungi. This methylated derivative is a critical analytical standard and reference material used primarily for the calibration and validation of detection methods in food safety and toxicology research. It is essential for laboratories and research institutions focused on mycotoxin analysis, method development, and quality control. The compound's defined structure allows for precise quantification and identification of the parent toxin in complex matrices.

Application

• Analytical Reference Standard: Primary use for calibrating HPLC, LC-MS/MS, and ELISA systems in mycotoxin testing laboratories.
• Method Development & Validation: Crucial for developing, optimizing, and validating new analytical protocols for Ochratoxin A detection.
• Food & Feed Safety Testing: Used in quality control labs to ensure compliance with regulatory limits for Ochratoxin A in grains, coffee, wine, and animal feed.
• Toxicological & Metabolic Studies: Serves as a stable analog in research investigating the metabolism, toxicity, and biological fate of Ochratoxin A.
• Pharmaceutical Impurity Testing: Potential use as a reference compound for monitoring mycotoxin contamination in herbal medicines and raw botanical ingredients.
• Certified Reference Material (CRM) Production: Sourced by manufacturers to produce certified, traceable CRM kits for laboratory accreditation.

Basic Information

Product Name	Ochratoxin A-o-Methyl, Methyl Ester
CAS No.	4825-87-0
Molecular Formula	C21H20ClNO6
Molecular Weight	417.84 g/mol
Synonyms	O-Methylochratoxin A Methyl Ester; 7-Carboxy-5-chloro-8-hydroxy-3,4-dihydro-3R-methylisocoumarin-7-L-β-phenylalanine Methyl Ester; Methyl (3R)-5-Chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanecarboxylate-L-phenylalanine Methyl Ester; Ochratoxin A Methyl Ester; OTA Methyl Ester; N-[(3R)-5-Chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanyl]carbonyl]-L-phenylalanine Methyl Ester
EINECS	Contact for details

Quality Control

Our Ochratoxin A-o-Methyl, Methyl Ester is produced and handled under strict quality protocols suitable for analytical and research applications. Each batch is characterized using advanced spectroscopic and chromatographic techniques to ensure identity, purity, and stability. A comprehensive Certificate of Analysis (COA) detailing batch-specific results for identity (IR, NMR), purity (HPLC), and related substances is provided. We support compliance with relevant laboratory quality standards, including ISO/IEC 17025.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. This product is hygroscopic (moisture-sensitive). For long-term storage, consider desiccation. Keep container tightly sealed in a dry and well-ventilated place.

Specification

Item	Specification
Appearance	White to off-white powder or crystals
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Water Content (KF)	≤ 2.0%
Specific Rotation	Contact for details

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