16015-11-5 己酮可可碱杂质21
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英文别名Pentoxifylline Impurity 21; 2-Methyl-5,6-dihydro-4H-pyran; 3,4-Dihydro-6-methyl-2H-pyran; 2H-Pyran, 3,4-dihydro-6-methyl-; Pentoxifylline Impurity 12; 6-methyl-3,4-dihydro-2H-pyran; 2-Methyl-3,4-dihydro-2H-pyrane; 2H-Pyran,3,4-dihydro-6-methyl; 6-methyl-2,3-dihydropyran; methyl-6 dihydro-3,4 (2H)-pyranne
