Description

Ochratoxin B Methyl Ester is a chemically modified derivative of Ochratoxin B, a mycotoxin produced by certain species of *Aspergillus* and *Penicillium* fungi. This analytical standard is of critical importance for research, method development, and quality control in food safety and toxicology laboratories. It serves as a key reference material for scientists and quality assurance professionals in the food, feed, and agricultural industries who require precise calibration and validation for the accurate detection and quantification of ochratoxin contaminants.

Application

• Analytical Reference Standard: Primary use as a certified standard for calibrating HPLC, LC-MS/MS, and other analytical instrumentation.
• Method Development & Validation: Essential for developing, optimizing, and validating new analytical methods for mycotoxin detection.
• Food & Feed Safety Testing: Used in quality control labs to ensure compliance with regulatory limits for ochratoxins in grains, coffee, wine, and animal feed.
• Toxicological Research: Serves as a reagent in studies investigating the metabolism, toxicity, and biological effects of ochratoxins.
• Pharmaceutical Impurity Profiling: Potential use in screening for fungal metabolite impurities in natural product-based pharmaceuticals.
• Proficiency Testing: Incorporated into inter-laboratory comparison programs to ensure accuracy and consistency of test results across different facilities.

Basic Information

Product Name	Ochratoxin B Methyl Ester
CAS No.	18496-57-6
Molecular Formula	C21H20ClNO6
Molecular Weight	417.84 g/mol
Synonyms	Ochratoxin B methyl ester; Methyl (R)-N-[(3R)-5-chloro-8-hydroxy-3-methyl-1-oxo-3,4-dihydro-1H-isochromen-7-yl]carbonyl]phenylalaninate; 7-Carboxy-5-chloro-8-hydroxy-3,4-dihydro-3R-methylisocoumarin-L-phenylalanine methyl ester; OTB-Me; OTB Methyl Ester; Methyl ester of Ochratoxin B
EINECS	Contact for details

Quality Control

Every batch of Ochratoxin B Methyl Ester is produced and analyzed under strict quality management protocols to ensure identity, purity, and consistency. Our products undergo rigorous quality testing, including chromatographic purity analysis and structural confirmation, to ensure compliance with industry standards for high-purity reference materials. Certificates of Analysis (COA) detailing batch-specific results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. The product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Water Content (KF)	≤ 1.0%

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