BiochemicalChina Food Flavour Enhancer Pure Methyl Cyclopentenolone CAS 80-71-7, Find details about China 2-Hydroxy-3-Methylcyclopent-2-Enone, 2-Hydroxy-3-Methyl-2-Cyclopentene-1-One from Food Flavour Enhancer Pure Methyl Cyclopentenolone CAS 80-71-7