1,1,1-三(羟甲基)乙烷

2,2-二羟甲基丙酸

β-hydroxy-isobutyraldehyde-(2,4-dinitro-phenylhydrazone)

2,2-bis(hydroxymethyl)propionaldehyde 2,4-dinitrophenylhydrazone

甲醛2,4-二硝基苯腙