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5-Hydroxy-1,4-naphthochinon

5-Hydroxy-1,4-naphthalenedione Struktur
481-39-0
CAS-Nr.
481-39-0
Bezeichnung:
5-Hydroxy-1,4-naphthochinon
Englisch Name:
5-Hydroxy-1,4-naphthalenedione
Synonyma:
JUGLONE;5-HYDROXY-1,4-NAPHTHOQUINONE;5-hydroxynaphthalene-1,4-dione;Nucin;Akhnot;Iuglon;Juglon;Yuglon;Juglane;Jugnlon
CBNumber:
CB5447002
Summenformel:
C10H6O3
Molgewicht:
174.15
MOL-Datei:
481-39-0.mol

5-Hydroxy-1,4-naphthochinon Eigenschaften

Schmelzpunkt:
161-163 °C (lit.)
Siedepunkt:
265.11°C (rough estimate)
Dichte
1.2346 (rough estimate)
Brechungsindex
1.5036 (estimate)
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
L?slichkeit
DMSO: 10 mg/ml; Ethanol: 10 mg/ml
pka
6.59±0.20(Predicted)
Aggregatzustand
Crystalline Powder
Farbe
Orange to brown
Wasserl?slichkeit
SOLUBLE IN HOT WATER
Sensitive 
Light Sensitive
Merck 
14,5269
BRN 
1909764
LogP
1.920
CAS Datenbank
481-39-0(CAS DataBase Reference)
NIST chemische Informationen
1,4-Naphthalenedione, 5-hydroxy-(481-39-0)
EPA chemische Informationen
1,4-Naphthalenedione, 5-hydroxy- (481-39-0)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher T
R-S?tze: 25-36/37/38
S-S?tze: 22-26-36/37/39-45-37/39-28A
RIDADR  UN 2811 6.1/PG 3
WGK Germany  3
RTECS-Nr. QJ5775000
HazardClass  6.1
PackingGroup  III
HS Code  29146990
Toxizit?t LD50 oral in rat: 112mg/kg
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H301 Giftig bei Verschlucken. Akute Toxizit?t oral Kategorie 3 Achtung GHS hazard pictogramssrc="/GHS06.jpg" width="20" height="20" /> P264, P270, P301+P310, P321, P330,P405, P501
Sicherheit
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P270 Bei Gebrauch nicht essen, trinken oder rauchen.
P301+P310 BEI VERSCHLUCKEN: Sofort GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.
P405 Unter Verschluss aufbewahren.
P501 Inhalt/Beh?lter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen.

5-Hydroxy-1,4-naphthochinon Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R25:Giftig beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-S?tze Betriebsanweisung:

S22:Staub nicht einatmen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.

Beschreibung

Juglone (5-hydroxynapthoquinone), is found in the leaves and other parts of walnut, hickory and pecan (1,2). Juglone is synthesized from isochorismic acid (a product of the shikimic acid pathway) and 2-oxo-glutaric acid (3). In plant tissue juglone exists as a free compound or as a glycoside (3,4). Action of a glucosidase releases 1,4,5-trihydroxynapthalene, which is then oxidized to juglone (3,4).

Chemische Eigenschaften

Orange to brown crystalline powder

Verwenden

antineoplastic, antifungal, antioxidant, Pin 1 inhibitor

Definition

ChEBI: A hydroxy-1,4-naphthoquinone that is 1,4-naphthoquinone in which the hydrogen at position 5 has been replaced by a hydroxy group.

Allgemeine Beschreibung

This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG

Pharmakologie

Juglone is probably best known as the allelochemical produced by black walnut. The glucoside of juglone leaches from the leaves and branches of black walnut, where it is converted to juglone in the soil. Juglone is toxic to certain plant species and also inhibits the germination of seeds (4). Thus its allelopathic activity may be the result of both phytotoxicity and a germination inhibitor. Juglone is also antifungal (1,5) and attempts to correlate its presence with disease resistance in pecan, black walnut, and hickory to several fungal pathogens have been reported (1,2,5,6). Positive correlations have been found for resistance of juvenile leaves of black walnut to anthracnose caused by Gnomia leptostyla (5) and of some Carya species to the scab pathogen Cladosporium carygenum (2). In some pecans (C. illinoensis), juglone may act as both a preformed and an induced defense factor because concentrations of juglone increase after infection by fungi (2). No correlation between juglone glycoside concentration in pecan leaves and resistance pecan to C. carygenum has been reported (6). Free juglone and the glycosides increase after infection, but these increases could not be correlated with scab resistance (6).

l?uterung methode

Crystallise Juglone from *benzene/pet ether or pet ether. [Beilstein 8 III 2558, 8 IV 2368.]

5-Hydroxy-1,4-naphthochinon Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


5-Hydroxy-1,4-naphthochinon Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 268)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Shaanxi Cuikang Pharmaceutical Technology Co., Ltd
+8618829768577
gao490372054@gamil.com China 1249 58
Zibo Hangyu Biotechnology Development Co., Ltd
+86-0533-2185556 +8617865335152
Mandy@hangyubiotech.com China 10986 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806
sales@capot.com China 29791 60
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21634 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3619 58
Chengdu Greenpure Biopharma CO.,Ltd
18283602253; +8618283602253
jancyzheng@gcgreenpure.com China 953 58
Chengdu GLP biotechnology Co Ltd
028-87075086 13350802083
scglp@glp-china.com CHINA 1824 58
Shenzhen Nexconn Pharmatechs Ltd
+86-755-89396905 +86-15013857715
admin@nexconn.com China 10311 58
Chengdu Biopurify Phytochemicals Ltd.
+8618080483897
sales@biopurify.com China 3772 58
Hubei Jusheng Technology Co.,Ltd.
18871490254
linda@hubeijusheng.com CHINA 28172 58

481-39-0(5-Hydroxy-1,4-naphthochinon)Verwandte Suche:


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  • 1,4-Naphthalenedione,5-hydroxy-
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  • 5-Hydroxy-1,4-naphthochinon
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