It is a designer drug which acts as a phosphodiesterase inhibitor. It is a structural analogue of Sidenafil (Viagra), which has been detected in numerous different brands of supposedly ”herbal” aphrodisiac products sold to boost libido and alleviate erectile dysfunction.Form:Off-White to Pale Yelow SolidMelting Point:146-148°C (dec.)Solubility:Chloroform, Dichloromethane, Ethyl Acetate