上游原料
Ethanol amine;Ethanolamine;2-Aminoethanol; 2-Amino-1-ethanol；2-Aminoethyl alcoholN-(Benzhydryl)piperazine; 1-Benzhydrylpiperazine; 1-(dibenzyl)piperazine3-acetyl-6-methyl-2H-pyran-2,4(3H)-dione2,6-dimethyl-4-pyridinol4-chloro-2,6-dimethyl-3-nitropyridine2-[(2,6-dimethyl-3-nitro-4-pyridinyl)amino]-1-ethanol
