The term diphenylhydantoin is identified in base64 scheme by the sequence ZGlwaGVueWxoeWRhbnRvaW4=, while the MD5 signature is equal to 619ea09482033cadbd8bade425e5fca9. The ASCII encoding of diphenylhydantoin in hexadecimal notation is 64697068656e796c687964616e746f696e.