5,5-Dimethyl hydantoin (77-71-4);1,3-Dibromo-5,5-diemthyl hydantoin (77-48-5);1,3-Dichloro-5,5-Dimethyl hydantoin (118-52-5);1-Bromo-3-Chloro-5,5-Dimethyl hydantoin (16079-88-2);1,3-Diiodo-5,5-Dimethyl hydantoin (2232-12-4);5-Ethyl-5-Methyl hydantoin (16820-12-5);1-Benzyl hydantoin (6777-05-5);2-Bromothiophene (1003-09-4);2-Thiophene Ethanol (5402-55-1);2-Thiophene Aldehyde (98-03-3);2-Chlorothiophene (96-43-5);Thiophene (110-02-1)