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32937

Supelco

Ochratoxin A

from Aspergillus ochraceus, reference material

Synonym(s):
N-[(3R)-(5-Chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl]-L-phenylalanine
Empirical Formula (Hill Notation):
C20H18ClNO6
CAS Number:
Molecular Weight:
403.81
Beilstein:
1301486
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

biological source

Aspergillus ochraceus

grade

analytical standard
reference material

shelf life

limited shelf life, expiry date on the label

application(s)

HPLC: suitable
gas chromatography (GC): suitable

Featured Industry

Cleaning Products
Cosmetics
Food and Beverages
Personal Care

format

neat

storage temp.

−20°C

SMILES string

C[C@@H]1Cc2c(Cl)cc(c(O)c2C(=O)O1)C(=O)N[C@@H](Cc3ccccc3)C(O)=O

InChI

1S/C20H18ClNO6/c1-10-7-12-14(21)9-13(17(23)16(12)20(27)28-10)18(24)22-15(19(25)26)8-11-5-3-2-4-6-11/h2-6,9-10,15,23H,7-8H2,1H3,(H,22,24)(H,25,26)/t10-,15+/m1/s1

InChI key

RWQKHEORZBHNRI-BMIGLBTASA-N

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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.

Application

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).

Pictograms

Skull and crossbonesHealth hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 2 Oral - Carc. 2

Storage Class Code

6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

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)
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)
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...
Abdelhamid Abbas et al.
International journal of food microbiology, 161(3), 172-181 (2013-01-22)
The ochratoxin A (OTA) polyketide synthase otapks gene has been cloned from Penicillium verrucosum. A P. verrucosum mutant in which the otapksPV gene has been interrupted cannot synthesize ochratoxin A. The protein is most similar to the citrinin polyketide synthase...
Xia Geng et al.
Analytical and bioanalytical chemistry, 405(8), 2443-2449 (2013-01-31)
By taking advantage of the intrinsic fluorescence of ochratoxin A (OTA), we present a fluorescence anisotropy approach for rapid analysis of the interactions between OTA and aptamers. The specific binding of OTA with a 36-mer aptamer can induce increased fluorescence...

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