Avanafil 330784-47-9
Mirodenafil 862189-95-5

Sildenafil
Sildenafil Citrate 171599-83-0
Sildenafil Mesylate 139755-83-2
Dimethyl Sildenafil 1416130-63-6
Hydroxyhomosildenafil
Homosildenafil 642928-07-2
Thiosildenafil 479073-79-5
Thiohomosildenafil
N-Desmethyl Sildenafil 139755-82-1
Thiodimethyl Sildenafil (Dimethylthiosildenafil) 1260112-90-0
Pyrazole N-desmethyl sildenafil
Sildenafil HCl
Benzyl Sildenafil
N-Desmethyl sildenafil 139755-82-1
Sildenafil N-Oxide
Sildenafil amide
Sildenafil Amine HCl

Tadalafil
Aminotadalafil 385769-84-6

DeMethyltadalafil 171596-36-4
Nortadalafil; DeMethyltadalafil ;N-DesMethyl Tadalafil;Tadalafil IMpurity:IMpurity C;(6R,12aR)-6-(1,3-Benzodioxol-5-yl)-2,3,6,7,12,12a-hexahydropyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione;(6R-trans)-6-(1,3-Benzodioxol-5-yl)-2,3,6,7,12,12a-hexahydropyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione


methyltadalafil 171488-11-2
acetaminotadalafil
methylhydroxyhomosildenafil



Udenafil 268203-93-6
Vardenafil
Vardenafil HCl 224785-90-4
Hydroxy Vardenafil

Acetildenafil (Hongdenafil) 831217-01-7
Dimethyl acetildenafil N/A
Dioxohongdenafil
N-Desmethyl Acetildenafil
Hydroxy acetildenafil
Nor-acetildenafil 949091-38-7
Piperi acetildenafil

Estrone 18850-57-5

PDE-5 Inhibitor (Sildenafil Related Compound)
Sildenafil Impurity A Related Compound (Isomer of Isobutyl Sildenafil)
Sildenafil Impurity ((1-methyl-4-Nitro -3-n-propyl pyrazole-5- carboxylic acid)
Sildenafil Analogue I (Propoxyphenyl-Thiohydroxyhomosildenafil) 479073-90-0