Heparin sodium

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Warnung

• Gefahrenhinweise

  H315：Verursacht Hautreizungen.

  H319：Verursacht schwere Augenreizung.

  H335：Kann die Atemwege reizen.

• Sicherheit

  P261：Einatmen von Staub vermeiden.

  P271：Nur im Freien oder in gut belüfteten Räumen verwenden.

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

Heparin sodium Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

  R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
  R42/43:Sensibilisierung durch Einatmen und Hautkontakt möglich.

• S-Sätze Betriebsanweisung:

  S22:Staub nicht einatmen.
  S24:Berührung mit der Haut vermeiden.
  S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
  S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.

• Beschreibung

  Reviparin sodium, a second-generation low molecular weight heparin produced from porcine mucosal heparin, has been introduced for the prevention of deep vein thrombosis and pulmonary embolism following surgery. It has sustained activity and increased bioavailability over unfractioned heparin. More noticeably, reviparin shows a pronounced inhibitory effect, both in vitro and in vivo , on smooth muscle cell proliferation which plays a predominant role in restenosis following angioplasty. Indeed, a lower incidence of restenosis without major bleeding complications has been reported for reviparin treated patients who successfully underwent percutaneous transluminal coronary angioplasty.

• Chemische Eigenschaften

  off-white powder

• Originator

  Knoll (Germany)

• Verwenden

  Heparin sodium salt is used as a blood anti-coagulant. It is also used as an effective inhibitor of mesenchymal cell proliferation. Further, it binds to antithrombin III, which inhibits coagulation proteases. It is used as a major component of serum free media for preventing cell aggregation. It is also used as an anti-cancer agent in in vitro cancer research.

• Verwenden

  for coagulation proteins, nucleic acids

• Verwenden

  corrosive moisture sensitive

• Manufacturing Process

  Heparinic acid a highly acidic mucopolysaccharide formed of equal parts of sulfated D-glucosamine and D-glucuronic acid with sulfaminic bridges. The molecular weight ranges from six to twenty thousand. Heparin occurs in and is obtained from liver, lung, mast cells, etc., of vertebrates. Its function is unknown, but it is used to prevent blood clotting in vivo and vitro, in the form of many different salts.
  In a self-regulated process for depolymerizing a heparin in an aqueous solution by providing about 0.02 to 0.1 M nitrous acid and a pH of about 2 to 3 in said solution, so that process occurs when all the nitrous acid has been consumed and mucopolysaccharides are produced from the heparin having an average molecular weight of less than 6,000. Heparin has molecular weight from 2000 to 50000. The products obtained by a below described method are constituted by a major part of species of molecular weight of about 2,000 to 8,000, which corresponds to structures having from about 8 to 40 saccharide entities (the molecular weights are measured by the HPLC method, by means, for example, of a 0.5 M sodium sulphate buffer).
  Self-Regulated Depolymerization of Heparin and Production of MPS of Low Molecular Weight.
  Into 15 liters of distilled water at +20°C, 1,500 grams of commercial heparin having a YW/USP ratio in the vicinity of 1 and a USP titer of 160 iu, are dissolved. 51.8 g of sodium nitrate dissolved in 300 ml of distilled water are added, and immediately the pH is lowered to 2.5 by pure hydrochloric acid.
  The reaction then takes place and its progress is checked until the absence of nitrous ions. After 40 minutes, the presence or absence of nitrous ions is checked at regular intervals in the reaction medium. Starch-iodine paper, for example, is used, checking every 5 minutes. After about 60 minutes of reaction, the nitrous acid had been entirely consumed and no more NO2 - ions remained in the reaction medium. The pH was then adjusted to 7 with pure caustic soda, and the products of the reaction were recovered by the addition of 31 liters of pure ethanol (2 volumes). The precipitate formed was collected by centrifugation, washed with ethanol and dried at 60°C under vacuum. 1,200 g of products having the following characteristics were collected: USP titer: 19 μ/mg; APTT titer: 13 μ/mg; Yin and Wessler titer: 202 μ/mg.
  In 10 liters of distilled water, at room temperature (15°-20°C) 1,000 grams of commercial injectable heparin having a USP titer of 170 μ/mg and a YW titer of 160 μ/mg, are dissolved. 38 g of sodium nitrite (final molarity 0.055 M) dissolved in 200 ml of water, is added. The pH is immediately lowered to 2.5 by pure hydrochloric acid. The reaction is checked as above at regular intervals of time (5-10 minutes). After 30 minutes, NO2 - ions are no longer detected in the reaction medium. The pH is then adjusted to 7 with 5 N soda; the products of the reaction are recovered by the addition of 21 liters of pure ethanol (2 volumes). The precipitate formed is collected by centrifugation, washed with ethanol and dried at 60°C under vacuum. Finally there are obtained 780 grams of white coloured powder having the following characteristics: USP Titer: 22 μ/mg; Yin and Wessler Titer: 260 μ/mg; APTT Titer: 10 μ/mg. Content of nitrites-nitrates: 5 ppm: <4 ppm. Average molecular weight: less than 6,000. Percentage of species whose molecular weight exceeds 10,000: less than 1%.

• Trademarks

  Normiflo (Pharmacia & Upjohn);Clivarin.

• Therapeutic Function

  Anticoagulant, Antithrombotic

• Allgemeine Beschreibung

  Heparin is mainly responsible for the delay in the coagulation of blood. It enhances the antithrombin-mediated inactivation of proteases in the coagulation pathway.

• Veterinary Drugs and Treatments

  Heparin’s primary uses in small animal medicine has included treatment of Disseminated Intravascular Coagulation (DIC) and prophylaxis of thromboembolic disease. In horses, it has been used in the treatment of DIC and as prophylactic therapy for laminitis (unproven efficacy).
  Use for treating DIC has become increasingly controversial. The most recent evidence suggests that heparin not be used during DIC in patients with concurrent inflammatory processes.

• Lager

  Desiccate at RT

• läuterung methode

  Dissolve the salt in 0.1M NaCl (1g/100mL) and precipitate it by additing EtOH (150mL). [Wolfrom et al. J Org Chem 29 540 1946, Huggard Adv Carbohydr Chem 10 336-368 1955.]

Heparin sodium Upstream-Materialien And Downstream Produkte

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