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Merck

O1877

Sigma-Aldrich

Ochratoxin A

Ochratoxin A
1 of 1 reviewers received a sample product or took part in a promotion

from Petromyces albertensis, ≥98% (HPLC), powder, mycotoxin

Sinónimos:

N-[(3R)-(5-Chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl]-L-phenylalanine

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About This Item

Fórmula empírica (notación de Hill):
C20H18ClNO6
Número de CAS:
Peso molecular:
403.81
Beilstein/REAXYS Number:
1301486
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77
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Nombre del producto

Ochratoxin A, from Petromyces albertensis, ≥98% (HPLC)

biological source

Petromyces albertensis

Quality Level

assay

≥98% (HPLC)

form

powder

impurities

Benzene, free

solubility

ethanol: soluble

mode of action

enzyme | inhibits
protein synthesis | interferes

storage temp.

2-8°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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Application

Ochratoxin A has been used as a mycotoxin:
  • to test its effect on metabolism and hypoxia in human embryonic kidney (HEK293) cells[1]
  • to test its cytotoxic effects in bovine mammary epithelial cells[2]
  • as a standard for gamma radiation studies with food products and in cytotoxic studies using Hep G2 cells[3]

Biochem/physiol Actions

Ochratoxin A (OTA), a renal toxin, is produced majorly by Aspergillus and Penicillium fungal species.[1] It is immunotoxic, teratogenic[2] myelotoxic, and mutagenic.[3] It effectively interrupts the intestinal barrier functions.[2] OTA displays a long elimination half-life[3] and stimulates the major inflammatory cytokines release.[2]
Ochratoxin A is a mycotoxin found in food that is nephrotoxic and carcinogenic in the kidney and induces differentiation in cloned renal cell lines. Increases endoplasmic reticulum ATP-dependent Ca2+ pump activity.

Preparation Note

This product is also soluble in chloroform (9.80 - 10.20 mg/ml), methanol (10 mg/ml), ethanol (50 mM), and DMSO (100 mM).

pictograms

Skull and crossbonesHealth hazard

signalword

Danger

hcodes

Hazard Classifications

Acute Tox. 2 Oral - Carc. 2

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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A Dörrenhaus et al.
Archives of toxicology, 71(11), 709-713 (1997-01-01)
In cultured rat hepatocytes the mycotoxin ochratoxin A (OTA) induced unscheduled DNA synthesis (UDS) only in a narrow concentration range. Using a culture medium supplemented with 1% fetal calf serum, at 750 nM OTA a weak induction and at 1
A Pfohl-Leszkowicz et al.
Molecular carcinogenesis, 23(2), 76-85 (1998-11-10)
Ochratoxin A (OTA), a nephrotoxic and carcinogenic mycotoxin, is implicated in the etiology of Balkan endemic nephropathy (BEN), a chronic disease affecting populations in the Balkans. Patients suffering from Balkan endemic nephropathy, urinary-tract tumors, or both are more frequently extensive
X Chong et al.
Biochemical pharmacology, 44(7), 1401-1409 (1992-10-06)
A disruption of calcium homeostasis, leading to a sustained increase in cytosolic calcium levels, has been associated with cytotoxicity in response to a variety of agents in different cell types. We have observed that administration of a single high dose
G Dirheimer et al.
IARC scientific publications, 115(115), 171-186 (1991-01-01)
Ochratoxin A has a number of toxic effects in mammals, the most notable of which is nephrotoxicity. It is also immunosuppressive, teratogenic and carcinogenic. The biochemical and molecular aspects of its action were first studied in bacteria. The appearance of
M Gekle et al.
Toxicology and applied pharmacology, 152(1), 282-291 (1998-10-17)
Ochratoxin A (OTA) is a ubiquitous fungal metabolite with predominant nephrotoxic action. OTA impairs postproximal renal electrolyte handling and increases the incidence of renal adenoma and carcinoma. Furthermore, it is supposed to be involved in the pathogenesis of different forms

Artículos

DNA damage and repair mechanism is vital for maintaining DNA integrity. Damage to cellular DNA is involved in mutagenesis, the development of cancer among others.

Questions

  1. Which solvents can be used for an OTA standard solution? PBS, alcoholic solvents (methanol or ethanol)?

    1 answer
    1. The analytical standard version of this compound, 34037, is a 10ug/mL solution in acetonitrile. This product is also soluble in chloroform (9.80 - 10.20 mg/ml), methanol (10 mg/ml), ethanol (50 mM), and DMSO (100 mM). The choice of solvent would be best determined by the researcher.

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Reviews

1 of 1 reviewers received a sample product or took part in a promotion

Active Filters

  1. 1 Ratings-Only Review

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