99254-95-2 Benzenepropanamine, N-(2-(3,4-dimethoxyphenyl)ethyl)-5-methoxy-N,alpha-dimethyl-2-(phenylethynyl)- Mcn 5691 Mcn-5691 N-(2-(3,4-Dimethoxyphenyl)ethyl)-5-methoxy-N-dimethyl-2-(phenylethynyl)benzenepropanamine