4-Pyrimidinecarboxylicacid, 5-[(4-methylphenyl)thio]-2-(methylthio)-;4-Pyrimidinecarboxylicacid, 2-(methylthio)-5-(p-tolylthio)- (8CI); 

Biotin, dethio-;5-Methyl-2-oxo-4-imidazolidinecaproic acid; (+)-Dethiobiotin; 4-Methyl-5-(w-carboxyamyl)imidazolidone-2; e-(4-Methyl-5-imidazolidone-2)caproic acid; d-Dethiobiotin;Dethiobiotin;4-Imidazolidinehexanoicacid, 5-methyl-2-oxo-, (4R,5S)-; Desthiobiotin;4-Imidazolidinehexanoicacid, 5-methyl-2-oxo-, (4R-cis)-;