APIs para investigación e impurezas

<p>Decitabine impurity 14 is an impurity of decitabine. It is a stable, natural product that has been synthesized for use as an analytical standard and pharmacopoeia reference material. Decitabine impurity 14 is a white crystalline powder with a melting point of about 152°C. It is soluble in water, ethanol and ether. The chemical name for this compound is 2-amino-4,6-dihydroxypyrimidine-5-carbonitrile hydrochloride.</p>

<p>Tacrolimus is a macrolide that is used as an immunosuppressive drug. It has been shown to bind to the FK-binding protein, which in turn inhibits calcineurin. This prevents the release of IL-2, TNF-α and other cytokines. The immunosuppressive effects of tacrolimus have been evaluated using analytical methods such as coefficients, affinity, and monitoring techniques such as immunoassays and agglutination. These techniques are used to evaluate the plasma concentration of tacrolimus. Tacrolimus also binds to proteins in the blood samples and can be detected by turbidimetric or electrochemiluminescence immunoassay reagents.</p>