1.2.5.6-tetrakis-(2.4.6-trimethyl-phenyl)-hexadiene-(1.5)-diol-(1.6) of mp: 208 degree

丙酮

(E)-1,4-bis(2,4,6-trimethylphenyl)but-2-ene-1,4-dione

氢溴酸

醋酸