PQQ may stimulate growth of plants in hydroponic culture and may be the causative factor in plant growth. PQQSynonym: 4,5-Dihydro-4,5-dioxo-1H-pyrrolo [2,3-f] quinoline-2,7,9-tricarboxylicFormula: C14H6N2O8Mass: 330.0124CAS No.: 72909-34-3Introduction Appearance: Brown-red lyophilized mass or powderPurity: PQQ more than 98% (measured by RP-HPLC)Microbe: Microbiological test <500 cfu/g Fungus test ...