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Sildenafil Grondstoffen

jinan jianfeng chemical co ltd



Dimethyl sulfate-->4-Dimethylaminopyridine-->Ethyl 3-n-propylpyrazole-5-carboxylate-->Thionyl chloride-->Sodium hydroxide-->Nitric acid-->Hydrochloric acid-->Triethylamine-->2-Ethoxybenzoyl chloride-->4-Methylpiperidine-->Hydrogen peroxide-->Tin(II)chloridedihydraat


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