Hupharma Sildenafil Citrate Viagra sex enhancement powder CAS 139755-83-2

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Product DescriptionCas No:139755-83-2molecular formula: C22H30N6O4Sdensity: 1.4±0.1 g/cm3boiling point: 672.4ºC at 760 mmHgmelting point: 187-189°CAppearance: white powderPSA: 121.80000Our advantages:1, high quality with competitive price:1)
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