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A hyclate (Latin: hyclas) is a pharmaceutical term for hydrochloride hemiethanolate hemihydrate [1] [2] (·HCl ...
Sample of a hydrochloride salt, triethylammonium chloride. In chemistry, a hydrochloride is an acid salt resulting, or regarded as resulting, from the reaction of hydrochloric acid with an organic base (e.g. an amine). An alternative name is chlorhydrate, which comes from French.
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Doxycycline, doxycycline monohydrate and doxycycline hyclate are yellow, crystalline powders with a bitter taste. The latter smells faintly of ethanol , a 1% aqueous solution has a pH of 2–3, and the specific rotation is [ α ] D 25 {\displaystyle [\alpha ]_{D}^{25}} −110° cm 3 /dm·g in 0.01 N methanolic hydrochloric acid .
It is used as a precursor in the industrial synthesis of doxycycline hyclate. [citation needed] It has been found to act as an agonist of the human pregnane X receptor ligand-binding domain and to induce CYP3A4 expression in vitro. [1]
In part because of its high polarity, HCl is very soluble in water (and in other polar solvents). Upon contact, H 2 O and HCl combine to form hydronium cations [H 3 O] + and chloride anions Cl − through a reversible chemical reaction: HCl + H 2 O → [H 3 O] + + Cl −. The resulting solution is called hydrochloric acid and is a strong acid.
Tetracycline hydrochloride is available as yellow crystalline powder. Since tetracycline is absorbed into bone, it is used as a marker of bone growth for biopsies in humans. Tetracycline labeling is used to determine the amount of bone growth within a certain period of time, usually a period around 21 days.
Hydrochloride, the salt of hydrochloric acid and an organic base; Hydrogen chloride, chemical formula HCl; Hypomania Checklist, a questionnaire used to screen for hypomania and bipolar spectrum disorders; HCL color space, a color space model designed to accord with human perception of color