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OCHRATOXIN B

CAS No.
4825-86-9
Chemical Name:
OCHRATOXIN B
Synonyms
OCHRATOXIN B;(r)-carbonyl);Ochratoxin B(OTB);ochratoxin b solution;Ochratoxin B 10ug/ml in ACN;ochratoxin B from aspergillus ochraceus;Ochratoxin B, 99%, from Aspergillus ochraceus;Ochratoxin B Solution (10μg/ml in Acetonitrile Solution);ochratoxin b from aspergillus ochraceus (aspergillus oryzae);N-[(8-Hydroxy-3-Methyl-1-oxo-7-isochroManyl)carbonyl]-3-phenyl-L- alanine
CBNumber:
CB2297543
Molecular Formula:
C20H19NO6
Molecular Weight:
369.37
MDL Number:
MFCD00133680
MOL File:
4825-86-9.mol
MSDS File:
SDS
Last updated:2023-06-08 09:02:17

OCHRATOXIN B Properties

Melting point 221° (van der Merwe)
alpha D -35° (c = 0.15 in ethanol)
Boiling point 632.4±55.0 °C(Predicted)
Density 1.361±0.06 g/cm3(Predicted)
Flash point -11 °C
storage temp. 2-8°C
solubility DMF: 10 mg/ml; DMSO: 15 mg/ml; Ethanol: 50 mg/ml; Ethanol:PBS (pH 7.2) (1:1): 0.50 mg/ml
form A crystalline solid
pka 3.40±0.10(Predicted)
FDA UNII ECJ5WS94N2
EPA Substance Registry System L-Phenylalanine, N-[[(3R)-3,4-dihydro-8-hydroxy-3-methyl-1-oxo-1H-2-benzopyran-7-yl]carbonyl]- (4825-86-9)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS02,GHS07
Signal word  Danger
Hazard statements  H225-H302-H312-H319-H332
Precautionary statements  P210-P280-P305+P351+P338
Hazard Codes  Xn,T,F
Risk Statements  22-36/37/38-65-48/23/24/25-36/38-11-46-45-36-20/21/22
Safety Statements  26-36-45-16-53-36/37-62
RIDADR  UN 3462 6.1/PG 3
WGK Germany  3
RTECS  AY6825000
HazardClass  6.1(a)
PackingGroup  I
HS Code  39229000
NFPA 704
0
2 0

OCHRATOXIN B price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 32411 Ochratoxin B solution 10?μg/mL in acetonitrile, analytical standard 4825-86-9 1ML $515 2024-03-01 Buy
Cayman Chemical 16167 Ochratoxin B ≥98% 4825-86-9 500μg $111 2024-03-01 Buy
Cayman Chemical 16167 Ochratoxin B ≥98% 4825-86-9 1mg $210 2024-03-01 Buy
Cayman Chemical 16167 Ochratoxin B ≥98% 4825-86-9 5mg $601 2024-03-01 Buy
Usbiological O5305-04 Ochratoxin B 4825-86-9 1mg $426 2021-12-16 Buy
Product number Packaging Price Buy
32411 1ML $515 Buy
16167 500μg $111 Buy
16167 1mg $210 Buy
16167 5mg $601 Buy
O5305-04 1mg $426 Buy

OCHRATOXIN B Chemical Properties,Uses,Production

Description

Ochratoxins are mycotoxins produced by Aspergillus and Penicillium species of fungi that contaminate foods. Ochratoxin A (OTA, ) is a chlorinated form with toxicity that targets the kidneys, causing nephropathy and renal adenomas. OTB is a non-chlorinated analog of OTA that has cytotoxic effects on kidney and liver cells in vitro but only minor effects in vivo, due to its rapid metabolism and excretion. OTB inhibits cell proliferation of human liver HepG2 cells at doses as low as 1 μg/ml but lacks the genotoxic activity of OTA, even at higher concentrations.

Uses

Ochratoxin B is the non-chlorinated analogue of the much more extensively studied ochratoxin A. It is co-produced by the same species of Aspergillus and Penicillium that are associated with food spoilage. Ochratoxin B has received little focused investigation and its mode of action and potential hazards have been inferred from ochratoxin A.

Uses

Ochratoxins are toxic metabolites from Aspergillus orchraceus.

Definition

ChEBI: Ochratoxin B is a phenylalanine derivative resulting from the formal condensation of the amino group of L-phenylalanine with the carboxy group of (3R)-8-hydroxy-3-methyl-1-oxo-3,4-dihydro-1H-2-benzopyran-7-carboxylic acid. Ochratoxin B differs from the more naturally abundant ochratoxin A in the absence of the dihydroisocoumarin chlorine atom. It has cytotoxic effects on kidney and liver cells in vitro but only minor effects in vivo, due to its rapid metabolism and excretion. It inhibits cell proliferation of human liver HepG2 cells at doses as low as 1 mug/ ml but lacks the genotoxic activity of ochratoxin A, even at higher concentrations. It has a role as an Aspergillus metabolite, a Penicillium metabolite, a mycotoxin and a calcium channel blocker. It is a phenylalanine derivative, a N-acyl-L-phenylalanine, a member of isochromanes and a monocarboxylic acid. It is a conjugate acid of an ochratoxin B(1-).

General Description

Crystals that exhibit blue fluorescence.

Reactivity Profile

OCHRATOXIN B is incompatible with strong oxidizing agents, strong acids and strong bases. OCHRATOXIN B is a carboxylic acid derivative. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt.

Fire Hazard

Flash point data for OCHRATOXIN B are not available. OCHRATOXIN B is probably combustible.

303-47-9
4825-86-9
Synthesis of OCHRATOXIN B from OCHRATOXIN A

OCHRATOXIN B Preparation Products And Raw materials

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2-[((3R)-8-HYDROXY-3-METHYL-1-OXOISOCHROMAN-7-YL)CARBONYLAMINO](2S)-3-PHENYLPR OPANOIC ACID OCHRATOXIN B (r)-carbonyl) l-phenylalanine,n-((3,4-dihydro-8-hydroxy-3-methyl-1-oxo-1h-2-benzopyran-7-yl) N-[(8-Hydroxy-3-Methyl-1-oxo-7-isochroManyl)carbonyl]-3-phenyl-L- alanine N-[[(3R)-3,4-Dihydro-8-hydroxy-3-Methyl-1-oxo-1H-2-benzopyran-7-yl]carbonyl]-L-phenylalanine ochratoxin B from aspergillus ochraceus ochratoxin b from aspergillus ochraceus (aspergillus oryzae) ochratoxin b solution (-)-N-[[(R)-3,4-Dihydro-8-hydroxy-3-methyl-1-oxo-1H-2-benzopyran-7-yl]carbonyl]-L-phenylalanine N-[[(3R)-1-Oxo-3-methyl-8-hydroxy-3,4-dihydro-1H-2-benzopyran-7-yl]carbonyl]-L-phenylalanine N-[[(R)-1-Oxo-3α-methyl-8-hydroxyisochroman-7-yl]carbonyl]-L-phenylalanine (2S)-2-[[(3R)-8-hydroxy-1-keto-3-methyl-isochromane-7-carbonyl]amino]-3-phenyl-propionic acid (2S)-2-[[(3R)-8-hydroxy-3-methyl-1-oxo-3,4-dihydroisochromen-7-yl]carbonylamino]-3-phenyl-propanoic acid (2S)-2-[[(3R)-8-hydroxy-3-methyl-1-oxo-3,4-dihydroisochromene-7-carbonyl]amino]-3-phenylpropanoic acid Ochratoxin B(OTB) Ochratoxin B, 99%, from Aspergillus ochraceus Ochratoxin B Solution (10μg/ml in Acetonitrile Solution) L-Phenylalanine, N-[[(3R)-3,4-dihydro-8-hydroxy-3-methyl-1-oxo-1H-2-benzopyran-7-yl]carbonyl]- Ochratoxin B 10ug/ml in ACN (2S)-2-[[(3R)-8-hydroxy-3-methyl-1-oxo-3,4-dihydroisochromene-7-carbonyl]amino]-3-phenylpropanoicaci 4825-86-9 Heterocycles Intermediates & Fine Chemicals Metabolites & Impurities Pharmaceuticals Cell Signaling and Neuroscience Mold Toxins and Venoms Biotoxins Mycotoxins Single component solutions