The tariff classification of N,N-Butylaniline (CAS # 1126-78-9), N,N-Diethyl-o-toluidine (CAS # 606-46-2), N-Methyl-m-toluidine (CAS # 696-44-6), N,N-Dimethyl-m-toluidine (CAS # 121-72-2), N-Ethyl-m-toluidine (CAS # 102-27-2), N,N-Diethyl-m-toluidine (CAS # 91-67-8), N,N-Butyl-m-toluidine (CAS # unknown) and N-Methylformanilide (CAS # 93-61-8) from Japan