4-Nitrophenethylamine Hydrochloride CAS 29968-78-3; N-Methyl-4-Nitrophenethylamine Hydrochloride CAS 166943-39-1 & 4-Nitrophenethyl Bromide CAS 5339-26-4 is pharma intermediates of ACTIVE PHARMACEUTICAL INGREDIENT (API) Dofetilide, Mirabegron. API are having therapeutic application in Anti-Arrhythmic categories.