CAS 1971915-89-5
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4 produits concernés.
Ethyl 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate
CAS :Couleur et forme :Neat3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid
CAS :Produit contrôlé<p>Applications 3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-ethyl ester Benzenesulfonic acid is used in the preparation of sildenafil impurity for pharmaceutical quality control by esterification.<br>References Xu, G., et al.: Faming Zhuanli Shenqing (2016), CN 105753870 A 20160713<br></p>Formule :C19H24N4O5SCouleur et forme :White To Off-WhiteMasse moléculaire :420.48
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