87424-82-6, 2-丙烯醛,2 -甲基-3 - (4 - 甲基-2- 氧代-2H-吡喃-6 - 基) - (E) -, (E)-2-METHYL-3-(4-METHYL-2-OXO-2H-PYRAN-6-YL)PROPENAL
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