DOXYCYCLINE IMPURITY
Doxycycline EP Impurity A
CAS No: 444.43 ; 480.90 ; Mol. Wt: 3219-99-6 (base) ; 41411-66-9 (HCl) ; Other Technical Details: Doxycycline USP RC A ; 6Epi Doxycycline ; (4S,4aR,5S,5aR,6S,12aS)-4(Dimethylamino)-3,5,10,12,12a-pentahydroxy-6methyl-1,11-dioxo-1,4,4a,5,5a,6,11,12aoctahydrotetracene-2-carboxamide ; Molecular Formula: C22H24N2O8 (base) ; C22H25ClN2O8 (HCl salt) ;
Doxycycline EP Impurity B
CAS No: 442.42 ; 478.88 ; Mol. Wt: 914-00-1 (base) ; 3963-95-9 (HCl) ; Other Technical Details: Methacycline HCl ; (4S,4aR,5S,5aR,12aS)-4-(Dimethylamino)3,5,10,12,12a-pentahydroxy-6-methylene-1,11dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2carboxamide HCl ; Molecular Formula: C22H22N2O8 (base) ; C22H23ClN2O8 (base) ;
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