Ochratoxin A

from Aspergillus ochraceus, reference material

Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

biological source

Aspergillus ochraceus


analytical standard
reference material



shelf life

limited shelf life, expiry date on the label


HPLC: suitable
gas chromatography (GC): suitable

Featured Industry

Cleaning Products
Food and Beverages
Personal Care



storage temp.


SMILES string




InChI key


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General description

Ochratoxin A is one of the mycotoxins typically produced by the species of Aspergillus genus. It is a commonly found secondary metabolite in cereals, coffee, grape must, wine, beer, etc.


Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
Ochratoxin A may be used as an analytical reference standard for the determination of the analyte in:
  • Traditional Chinese medicines by ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS).
  • Wine samples by reversed-phase HPLC with fluorescence detection (HPLC-FLD).


Skull and crossbonesHealth hazard

Signal Word


Hazard Statements

Precautionary Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


UN 3462 6.1 / PGII

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Determination of ochratoxin A in beer marketed in Spain by liquid chromatography with fluorescence detection using lead hydroxyacetate as a clean-up agent.
Medina A, et al.
Journal of Chromatography A, 1083(1-2), 7-13 (2005)
Reversed-phase liquid chromatographic method for the determination of ochratoxin A in wine.
Dall?Asta C, et al.
Journal of Chromatography A, 1024(1-2), 275-279 (2004)
Zheng Han et al.
Journal of chromatography. A, 1217(26), 4365-4374 (2010-05-21)
The paper reported a reliable analytical method for simultaneous determination of ochratoxin A (OTA) and ochratoxin B (OTB) in traditional Chinese medicines (TCMs) by ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). The development of the method and investigations on the matrix...
Yan Wang et al.
Plant molecular biology, 82(4-5), 321-337 (2013-04-30)
Ochratoxin A (OTA) is a mycotoxin that is primarily produced by Aspergillus ochraceus and Penicillium verrucosum. This mycotoxin is a contaminant of food and feedstock worldwide and may induce cell death in plants. To investigate the dynamic growth process of...
Zheng Han et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 925, 46-53 (2013-03-26)
A combinatorial platform of liquid chromatography-tandem mass spectrometry (LC-MS/MS) and liquid chromatography coupled with time of flight mass spectrometry (LC-TOF-MS) has been developed to investigate the in vivo kinetics and biotransformation of ochratoxin A (OTA) in rats. The stable isotope...

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