PROBLEMS To provide novel crystals of 4-{3-[4-(3-{4-[amino(butoxycarbonylimino)methyl]phenoxy} propyl)-1-piperidinyl]propoxy}-N'-(butoxycarbonyl) benzamidine. MEANS FOR SOLVING THE PROBLEMS The type II crystal, the type III crystal and the type IV crystal of 4-{3-[4-(3-{4-[amino(butoxycarbonylimino)methyl]phenoxy} propyl)-1-piperidinyl]propoxy}-N'-(butoxycarbonyl) benzamidine are useful as excellent drug substances of antifungal agents.