Offter to Sell

penem intermediate

  • Post Date:

    Nov 03,2019

  • Expiry Date:

    May 01,2020

  • Detailed Description:

    AS:[76855-69-1]
    4-acetoxyazetidin-2-one ( penem intermediate )
    (3R,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-2-azetidinone
    Appearance: white or off-white crystal
    Optical Purity : 99%(ee)
    Assay : ≥98.5%( external standard method )
    Specific optical rotation : [a] 25 D : +46 ~ +49?( c=0.56 CHCl3 )
    Melting point: 104 ~ 108

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