CAS No.:139755-83-2 Other Names:Viagra or Sildenafil MF:C22H30N6O4S EINECS No.:139755-83-2 Type:Auxiliaries and Other Medicinal Chemicals Grade Standard:Medicine Grade Usage:Animal Pharmaceuticals Purity:99%min Appearance:White Powder Application:Sexual Enhancement Storage:in cool place Assay:98%~101% Sample:Availiable Show More