Viagra Powder 99% Sildenafil and Sildenafil Citrate for men CAS 139755-83-2

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Product DescriptionCAS: 139755-83-2Assay: 99% min. USP32Packing: 1kg/foil bag, 5kg/drum.Delivery: Express courier.MF: C28H38N6O11S MW: 666.7 Our Advantages:1.High quality: the purity is 99%min.through multiple producing procedures.2.Competitive price : low price because of our skilled
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