Gmp Standard Hormone powder Sildenafil/Viagra for male enhancer CAS 139755-83-2

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Product parameters:CAS: 139755-83-2/ chemical name: sildenafil (sildenafil base)Molecular formula/structured: C22H30N6O4SMolecular weight: 474.58Content (%) : 99.9Product specifications: 1 * 25Our advantages:(1)We will ship the goods within 24 hours after get your payments.   (2)We
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