Carbinoxaminhydrogenmaleat

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H301：Giftig bei Verschlucken.

  H315：Verursacht Hautreizungen.

  H319：Verursacht schwere Augenreizung.

  H335：Kann die Atemwege reizen.

• Sicherheit

  P302+P352：BEI BERÜHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckmäßig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.

  P305+P351+P338：BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

CARBINOXAMINE MALEATE SALT Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

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

• S-Sätze Betriebsanweisung:

  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 möglich, dieses Etikett vorzeigen).

• Beschreibung

  Carbinoxamine is a competitive histamine H₁ receptor antagonist (K_i = 2.3 nM) and first generation antihistamine. It also competes with [³H]diltiazem, an L-type calcium channel blocker, for binding to the benzothiazepine site on rat cardiomyocytes (K_i = 1.08 nM). Carbinoxamine decreases negative inotropic activity in isolated guinea pig left atria by 76% (EC₅₀ = 250 nM) and negative chronotropic activity in guinea pig spontaneously beating isolated right atria (EC₅₀s = 250 and 480 nM, respectively) by 48% compared with control. Formulations containing carbinoxamine have been used in the treatment of allergic rhinitis.

• Chemische Eigenschaften

  Off-White Solid

• Originator

  Clistin,McNeil,US,1953

• Verwenden

  antihistaminic

• Verwenden

  Analgesic and anti-inflammatory compound

• Definition

  ChEBI: The maleic acid salt of carbinoxamine. An ethanolamine-type antihistamine, used for treating hay fever, as well as mild cases of Parkinson's disease.

• Manufacturing Process

  As described in US Patent 2,800,485 a solution of p-chlorophenylmagnesium bromide is prepared by adding dropwise a solution of 230 g (1.2 mols) of p-bromochlorobenzene in 900 cc of anhydrous ether to 26.7 g (1.1 g-atoms) of magnesium suspended in 100 cc of anhydrous ether containing a small crystal of iodine. To this solution, 107 g (1 mol) of 2-pyridinealdehyde are added slowly with stripping at a rate to maintain refluxing. The reaction mixture is then stirred for one hour at room temperature. The mixture is then poured onto an equal volume of crushed ice and water and acidified with concentrated hydrochloric acid. The ether layer is removed. The aqueous layer is made basic with ammonia and extracted with ether. The ether solution is evaporated and the residue dried by addition of benzene and removal by distillation to give 208 g (95%) of solid alpha-(p-chlorophenyl)-2-pyridinemethanol melting at 78° to 80°C. The p-chlorophenyl pyridinemethanol may alternatively be prepared from 4-chloroacetophenone, pyridine and granular aluminum as described in US Patent 2,606,195. In either case, the synthesis then proceeds as described in US Patent 2,800,485.
  A solution of 219 g (1 mol) of α-(p-chlorophenyl)-2-pyridinemethanol in one liter of dry toluene is heated to 100°C with stirring. Twenty-three grams (1 g-atom) of sodium are then added in portions. After all the sodium has reacted, a dried solution of 2-dimethylaminoethyl chloride in benzene is added. This benzene solution is prepared by dissolving 173 g (1.2 mols) of 2- dimethylaminoethyl chloride hydrochloride in the minimum amount of water, adding 500 cc of benzene followed by 300 g of sodium carbonate decahydrate, stirring, separating the benzene layer and drying.
  The mixture is refluxed with stirring for ten hours, cooled and filtered. The filtrate is extracted three times with 200 cc portions of 6 N acetic acid. The aqueous acetic acid solution is then made strongly basic with 10% sodium hydroxide solution, and extracted three times with 200 cc portions of ether. The ether extract is dried with anhydrous sodium sulfate, stirred with 5 g of activated carbon and filtered to provide 2-[p-chloro-α(2-dimethylaminoethoxy) benzyl]pyridine in solution. Addition of a solution of 116 g (1 mol) of maleic acid in 1,500 cc of ether gives 323 g (79%) of solid which, on recrystallization from ethyl acetate, gives white solid 2-[p-chloro-α(2-dimethylaminoethoxy) benzyl]pyridine maleate melting at 117° to 119°C.

• Trademarks

  Clistin (Ortho- McNeil).

• Therapeutic Function

  Antihistaminic

• Allgemeine Beschreibung

  Carbinoxamine is availableas a bitter bimaleate salt, (d, l)-2-[p-chloro- -[2-(dimethylamino)ethoxy]benzyl]pyridine bimaleate (Clistin), which isa white crystalline powder that is very soluble in water andfreely soluble in alcohol and in chloroform. The pH of a 1%solution is between 4.6 and 5.1.
  Carbinoxamine is a potent antihistaminic and is availableas the racemic mixture. It differs structurally from chlorpheniramineonly in having an oxygen atom separate theasymmetric carbon atom from the aminoethyl side chain. Themore active levo isomer of carbinoxamine has the (S) absoluteconfiguration and can be superimposed on the moreactive dextro isomer (S configuration) of chlorpheniramine.

CARBINOXAMINE MALEATE SALT Upstream-Materialien And Downstream Produkte

Carbinoxaminhydrogenmaleat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global(206)Suppliers

3505-38-2, CARBINOXAMINE MALEATE SALT Verwandte Suche: