2,3,6a alpha, 8,9,9a alpha-Hexahydro-4-methoxy-cyclopenta-(c)furo(2',3',:4,5)furo(2,3-h)chromen-1,11-dion

Bezeichnung:2,3,6a alpha, 8,9,9a alpha-Hexahydro-4-methoxy-cyclopenta-(c)furo(2',3',:4,5)furo(2,3-h)chromen-1,11-dion

CAS-Nr7220-81-7

Englisch Name:AFLATOXIN B2

CBNumberCB0236746

SummenformelC17H14O6

Molgewicht314.29

MOL-Datei7220-81-7.mol

Synonyma

2,3,6aα,8,9,9aα-Hexahydro-4-methoxycyclopenta[c]furo[2',3':4,5]furo[2,3-h]chromen-1,11-dion

2,3,6a alpha, 8,9,9a alpha-Hexahydro-4-methoxy-cyclopenta-(c)furo(2',3',:4,5)furo(2,3-h)chromen-1,11-dion

2,3,6a alpha, 8,9,9a alpha-Hexahydro-4-methoxy-cyclopenta-(c)furo(2',3',:4,5)furo(2,3-h)chromen-1,11-dion physikalisch-chemischer Eigenschaften

Schmelzpunkt	286-289 °C
alpha	D -492° (c = 0.1 in CHCl3)
Siedepunkt	373.98°C (rough estimate)
Dichte	1.2564 (rough estimate)
Brechungsindex	1.4800 (estimate)
Flammpunkt	11 °C
storage temp.	2-8°C
Löslichkeit	DMF: 20 mg/ml; DMF:PBS(pH 7.2)(1:1): 0.5 mg/ml; DMSO: 12 mg/ml
Wasserlöslichkeit	15mg/L(temperature not stated)
Merck	13,180
BRN	1355115
LogP	1.802 (est)
CAS Datenbank	7220-81-7

Sicherheit

Kennzeichnung gefährlicher	T+,T,F,Xn
R-Sätze:	45-26/27/28-39/23/24/25-23/24/25-11-65-48/23/24/25-36/38-46-36-20/21/22
S-Sätze:	53-36-45-36/37-26-62-28-16
RIDADR	UN 3462 6.1/PG 1
WGK Germany	3
RTECS-Nr.	GY1722000
F	10
HazardClass	6.1(a)
PackingGroup	I
HS Code	29322090
Giftige Stoffe Daten	7220-81-7(Hazardous Substances Data)
Toxizität	LD50 orally in day old duckling: 84.8 mg/50 gm body wt (Carnaghan)

Gefahreninformationscode (GHS)

AFLATOXIN B2 Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R45:Kann Krebs erzeugen.
R26/27/28:Sehr giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
R39/23/24/25:Giftig: ernste Gefahr irreversiblen Schadens durch Einatmen, Berührung mit der Haut und durch Verschlucken.
R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
R11:Leichtentzündlich.
R65:Gesundheitsschädlich: kann beim Verschlucken Lungenschäden verursachen.
R48/23/24/25:Giftig: Gefahr ernster Gesundheitsschäden bei längerer Exposition durch Einatmen, Berührung mit der Haut und durch Verschlucken.
R36/38:Reizt die Augen und die Haut.
R46:Kann vererbbare Schäden verursachen.
R36:Reizt die Augen.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-Sätze Betriebsanweisung:
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S62:Bei Verschlucken kein Erbrechen herbeiführen. Sofort ärztlichen Rat einholen und Verpackung oder dieses Etikett vorzeigen.
Chemische Eigenschaften
The aflatoxins are a group of molds produced by the fungus Aspergillus flavus. They are natural contaminants of fruits, vegetables, and grains. They are also described as a series of condensed ring heterocyclic compounds. They form colorless to pale yellow crystals. Practically insoluble in water.
Chemische Eigenschaften
off-white powder
Verwenden
Aflatoxins B1, B2, G1, G2 as secondary metabolites of fungal species such as Aspergillus flavus or Aspergillus parasiticus growing on a variety of foods (peanuts, nuts, spices, cereals). Aflatoxins are a group of very carcinogenic mycotoxins with hepatotoxic effects.
Verwenden
Aflatoxin B2 is the minor analogue of the blue fluorescent family of bisfuranocoumarin mycotoxins produced by Aspergillus flavus and related species. Alfatoxins are one of the most potent mycotoxins known but are in fact "pre-toxins", requiring metabolic activation to the toxic principle. Aflatoxins are found widely in nature in trace amounts, particularly in grains and nuts. The toxicity of these metabolites was first recognised in the 1950s and their structures elucidated in 1963. Aflatoxins have been extensively reviewed.
Verwenden
Aflatoxins are naturally occuring mycotoxins produced by various species of the mold Aspergillus, which can be found in legumes, corn, soybeans, rice, milk, and cheese. They are highly carcinogenic substances that are metabolized by the liver to a reactive epoxide intermediate, which produces adducts that modify DNA. Aflatoxin B1 induces transversion of G to T at codon 249 of the p53 tumor suppressor gene. This transversion is common in hepatocellular carcinoma patients living in regions with high levels of aflatoxin contamination. Aflatoxin B2 is the dihydro derivative of aflatoxin B1, a naturally occuring mycotoxin and food contaminant that is a likely pathogen that causes hepatocellular carcinoma.[Cayman Chemical]
Definition
ChEBI: An aflatoxin having a hexahydrocyclopenta[c]furo[3',2':4,5]furo[2,3-h]chromene skeleton with oxygen functionality at positions 1, 4 and 11.
Allgemeine Beschreibung
Aflatoxin B₂ is one of the fungal metabolic products produced in food and feed, contaminated by?Aspergillus?species.
Sicherheitsprofil
Confirmed human carcinogen with experimental tumorigenic data. Poison by ingestion. Mutation data reported. When heated to decomposition it emits acrid smoke and fumes. See also various aflatoxins.
mögliche Exposition
Aflatoxins are a group of toxic metabolites produced by certain types of fungi. Aflatoxins are not commercially manufactured; they are naturally occurring contaminants that are formed by fungi on food during conditions of high temperatures and high humidity. Most human exposure to aflatoxins occurs through ingestion of contaminated food. The estimated amount of aflatoxins that Americans consume daily is estimated to be 0.15 0.50 μg. Grains, peanuts, tree nuts, and cottonseed meal are among the more common foods on which these fungi grow. Meat, eggs, milk, and other edible products from animals that consume aflatoxincontaminated feed may also contain aflatoxins. Aflatoxins can also be breathed in
Versand/Shipping
UN3172 Toxins, extracted from living sources, solid or liquid, Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
Inkompatibilitäten
Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.
Waste disposal
Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Use of oxidizing agents, such as hydrogen peroxide or 5% sodium hypochlorite bleach. Acids and bases may also be used.

AFLATOXIN B2 Upstream-Materialien And Downstream Produkte

2,3,6a alpha, 8,9,9a alpha-Hexahydro-4-methoxy-cyclopenta-(c)furo(2',3',:4,5)furo(2,3-h)chromen-1,11-dion Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

7220-81-7, AFLATOXIN B2 Verwandte Suche:

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