formation constants for thallium ( i ) complexes of l-cysteine ( cysh2 ) , dl-penicillamine ( penh2 ) , n-acetyl-l-cysteine ( acyh2 ) , and n-acetyl-dl-penicillamine ( apeh2 ) in aqueous solution have been determined in 150 mmol dm-3 nacl medium at 37 degrees c by potentiometric titrations using a glass electrode .
C0010654
l-cysteine
C0001047
n-acetyl-l-cysteine