7-Isopropyl-1,4-dimethylazulen

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Warnung

• Gefahrenhinweise

  H302：Gesundheitsschädlich bei Verschlucken.

• Sicherheit

  P264：Nach Gebrauch gründlich waschen.

  P264：Nach Gebrauch gründlich waschen.

  P270：Bei Gebrauch nicht essen, trinken oder rauchen.

  P301+P312：BEI VERSCHLUCKEN: Bei Unwohlsein GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.

  P501：Inhalt/Behälter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen.

Guaiazulene Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

  R22:Gesundheitsschädlich beim Verschlucken.
  R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.

• S-Sätze Betriebsanweisung:

  S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
  S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
  S22:Staub nicht einatmen.
  S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

• Chemische Eigenschaften

  DARK BLUE LOW MELTING CRYSTALLINE SOLID

• Originator

  AZ 8,Millet Roux

• Verwenden

  Guaiazulene can be used as a starting material for the synthesis of:
  
  • Azulene-based dye molecules such as 3-(7-isopropyl-1,4-dimethylazulen-3-yl)-2-cyanoacrylic acid and 5-(7-isopropyl-1,4-dimethylazulen-3-yl)-2-cyanopenta-2,4-dienoic acid.
  • Stilbazulenyl nitrone, a second-generation azulenyl nitrone which can be used as a chain-breaking antioxidant.
  • Bis-azulenyl based near-infrared fluorescence quencher.
  
  

• Verwenden

  antioxidant, inhibits lipid peroxidation inhibitor, antiinflammatory, hepatoprotectant; LD50(rat) 1550 mg/kg po

• Definition

  ChEBI: Guaiazulene is a sesquiterpene. It derives from a hydride of a guaiane.

• Manufacturing Process

  10 kg a gum of Guacum officinale was heated with 3-4 kg of sulfur to 130°C. The heating was slowly continued for 220°C under the nitrogen. The formed water steam was removed with the nitrogen current. The temperature should be higher 100°C in order to the water didnt fall into reaction mixture. H2S was obtained simultaneously the dehydrogenation and removed with water steam. Hydrogen sulfide was connected in an alkaline trap.
  When a H2S discharge stopped, the temperature was decreased to 120°C and the reaction mixture was distilled in vacuum 1-20 mm. The distillate had deep blue color and contained 6-7 kg oil with 20% of 7-isopropyl-1,4- dimethylazulene. It was dissolved in the 5-10 volumes of light petroleum, shook with sodium hydroxide for removing the sulfur containing substaneces, washed to neutral. Then petrolem layer was mixed with 10-15 L 62% H2SO4 for removing the by-products, the petroleum layer lost the blue color and the desired substance was in sulphuric acid layer. The last one was shook with ice and NaOH. As a result about 7% NaSO4 solution in sulfuric acid was obtained. It was diluted and azulene gave an emulsion, which was extracted with 10 L of petrolem and distilled. The 7-isopropyl-1,4-dimethylazulene is distilled at 167°-168°C/12 mm. Yield 10-15%.

• Therapeutic Function

  Antiinflammatory

• 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

• läuterung methode

  It forms blue-violet plates from EtOH. Also redistil it in vacuo until distillate solidifies. UV has max at 284nm (log 4.6, heptane). The picrate has m 122o(EtOH). [Beilstein 5 III 1677, 5 IV 1751.]

Guaiazulene Upstream-Materialien And Downstream Produkte

7-Isopropyl-1,4-dimethylazulen Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global(318)Suppliers

489-84-9, Guaiazulene Verwandte Suche: