Changes to the way of sealing and dissolving solution transfer of doxorubicin hydrochloride intermediate: <br>1. It is planned to add a special dosing device for doxorubicin hydrochloride (fermentation) in the M2309 isolator, and connect the R2322 airtight mobile storage tank with the dosing device For docking, it is also used for the transfer of primary crystallization and secondary crystallization solution of doxorubicin hydrochloride. <br>2. It is planned to change the packaging of doxorubicin hydrochloride (fermentation) product intermediates from double-layer PE bags with electric heat sealing to double-layer PE bags with strap sealing, and the use of the sealing machine is cancelled. The M2309 isolator was modified and the bag in and bag out device was added.
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