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倍他米松ep杂质b
目录号: pi20012003     品名: betamethasone ep impurity b
cas no:25122-41-2 ||chemical formula:c22h28clfo4 ||molecular weight:410.91040 ||exact mass:410.16602||21-chloro-9-fluoro-11β,17-dihydroxy-16β-methylpregna-1,4-d……
倍他米松ep杂质c
目录号: pi20012004     品名: betamethasone ep impurity c
cas no:13504-15-9||chemical formula:c22h28o4||molecular weight:356.46200||exact mass:356.19876 "||17,21-dihydroxy-16β-methylpregne-1,4,9(11)-triene-3,20-dione
倍他米松ep杂质g
目录号: pi20012008     品名: betamethasone ep impurity g
cas no:n/a||chemical formula:c22h30o5||molecular weight:374.47700||exact mass:374.20932||11α,17,21-trihydroxy-16β-methylpregne-1,4-diene-3,20-dione
倍他米松ep杂质l
目录号: pi20012012     品名: betamethasone ep impurity l
cas no:n/a||chemical formula:c22h31fo5||molecular weight:394.48340||exact mass:394.21555||9-fluoro-11β,17,21-trihydroxy-16β-methylpregn-4-ene-3,20-dione (1,2-di……

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