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Efinaconazole
  Product name CAS NO.
  (2r,3s)-2-(2,4-difluorophenyl)-3-methyl-((1h-1,2,4-triazol-1-yl)methyl)oxirane 127000-90-2
  (2r,3r)-2-(2,4-difluorophenyl)-1-(1h-1,2,4-triazol-1-yl)-2,3-butanediol 133775-25-4
  1-boc-4-methylenepiperidine 159635-49-1
  4-methylenepiperidine hydrochloride 144230-50-2
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