cas 21898-19-1, Clenbuterol hydrochloride | Articles data

Articles about 21898-19-1Total 3 be found

Environment-friendly non-toxic synthesis method of clenbuterol hydrochloride
The invention provides an environment-friendly non-toxic synthesis method of clenbuterol hydrochloride. The synthesis method comprises the following steps: 1) preparing an intermediate 1; 2) preparingan intermediate 2; 3) preparing clenbuterol; and 4) preparing the clenbuterol hydrochloride. The synthesis method comprises the following steps: synthesizing an intermediate 1 by adopting an oxidation method; and then forming a Schiff base intermediate 2 with tert-butylamine, and then preparing clenbuterol by reduction so that the condition that an alpha-bromo-structure intermediate with genotoxicity is prepared by using liquid bromine or other brominating agents in a traditional production process is avoided, the new synthesis method is environment-friendly and non-toxic, and the clinical use risk of clenbuterol hydrochloride is effectively reduced.
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Paragraph 0032; 0050; 0056-0059

(2020/07/21)

Sustained release pharmaceutical plaster
A sustained release pharmaceutical plaster which is characterized in that it is a pharmaceutical preparation mainly composed of an adhesive compound layer and a supporter which supports the adhesive compound layer, inside of which there is an arrangement of hollow fibers, that have radially arranged open pores, with their tubular hollows filled with medicines.
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(2008/06/13)

Chemical Properties

Appearance/Colour :Colourless microcrystalline powder
Melting Point: 174-175.5 °C
Boiling Point: 404.9 °C at 760 mmHg
Flash Point:198.7 °C
Density: 1.25g/cm3
Solubility:Soluble in water and in ethanol (96 per cent), slightly soluble in acetone.
Storage Temp.:2-8°C
Merck: 14,2347
PSA: 58.28000
LogP: 4.77120

This product is a nationally controlled contraband, and the Lookchem platform doesn't provide relevant sales information.