2,2':5',2'':4'',3''':4''',4'''':2'''',2''''':5''''',2''''''-Septithiophene,2''',5'''-dihydro-5,5'',5'''',5''''''-tetramethyl-
CAS No. 918412-91-6
BETABELLIN 14D 161247-62-7
L-VALANOL 226-48-4