Sildenafil Citrate/Viagra Assay:99%min Appearance:white powder Packing:on reqest; Shanghai Everchem Co.,Ltd.is a reliable manufacturer of API,organic intermediates and fine chemicals,also offers to custom synthesis. Your kind inquiry should be highly appreciated! Contact: Miss Karry, Tel:0086-21-51923949 Fax:0086-21-51923940 e-mail: sales@everchem.cn. http://www.everchem.cn
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