label: 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, mixt. with copper(2+) sulfate (1:1), sodium hydrogen carbonate and sodium hydroxide
label_lc: 1,2,3-propanetricarboxylic acid, 2-hydroxy-, mixt. with copper(2+) sulfate (1:1), sodium hydrogen carbonate and sodium hydroxide