r 818

Flecainide acetate (R-818) 是位于心脏的 Nav1.5钠离子通道的阻断剂，具有抗心律失常的作用。

Mpro inhibitor 818 是一种针对SARS-CoV-2主要蛋白酶的新型片段样抑制剂，具有体外抗病毒活性。

VUN 00829, also known as N-(m-PEG4)-N'-(PEG4-acid)-Cy5 is a near infrared (NIR) fluorescent Cy 5 labeled PEG derivative containing free terminal carboxyl acid. Terminal carboxylic acid can react with primary amine groups in the presence of of activators (e.g. EDC, or DCC) to form a stable amide bond. The hydophilic PEG spacer increases solubility in aqueous media. Cy5 labeled PEG derivative can be easily traced from its blue color and strong fluorescence. This product has no formal name at the moment. For the convenience of communication, a temporary code name was therefore proposed according to MedKoo Chemical Nomenclature (see web page: https: www.medkoo.com page naming).