4-氯-3,5-二甲基苯酚、工业用乙二醛水溶液和工业用L-八氢吲哚-2-羧酸(2017) 4-Chloro-3,5-dimethylphenol, glyoxal in water for industrial use and L-octahydroindole-2-carboxylic acid for industrial use (2017) HGT5274~5276-2017, HG5274~