Milbemycin Oxime
Mixture of milbemycin A3 oxime and milbemycin A4 oxime
[129496-10-2] Milbemycin A3 Oxime
C31H43NO7 541.68
Milbemycin B, 5-O-demethyl-28-deoxy-25-methyl-6,28-epoxy-23-hydroxyimino-, [6R,23S,25S(E)]-; (2αE,4E,5′S,6R,6′S,8E,11R,13R,15S,17αR,20αR,20βS)-3′,4′,5′,6,6′,7,10,11,14,15,17α,20,20α,20β-tetradecahydro-20β-hydroxy-5′,6′,6,8,19-pentamethylspiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2′-[2H]pyran]-17-one 20-oxime.
Milbemycin A4 Oxime
C32H45NO7 555.70
Milbemycin B, 5-O-demethyl-28-deoxy-25-ethyl-6,28-epoxy-23-hydroxyimino-, [6R,23S,25S(E)]-; (2αE,4E,5′S,6R,6′S,8E,11R,13R,15S,17αR,20αR,20βS)-6′-ethyl-3′,4′,5′,6,6′,7,10,11,14,15,17α,20,20α,20β-tetradecahydro-20β-hydroxy-5′,6,8,19-tetramethylspiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2′-[2H]pyran]-17-one 20-oxime.
[129496-10-2] Milbemycin A3 Oxime
C31H43NO7 541.68
Milbemycin B, 5-O-demethyl-28-deoxy-25-methyl-6,28-epoxy-23-hydroxyimino-, [6R,23S,25S(E)]-; (2αE,4E,5′S,6R,6′S,8E,11R,13R,15S,17αR,20αR,20βS)-3′,4′,5′,6,6′,7,10,11,14,15,17α,20,20α,20β-tetradecahydro-20β-hydroxy-5′,6′,6,8,19-pentamethylspiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2′-[2H]pyran]-17-one 20-oxime.
Milbemycin A4 Oxime
C32H45NO7 555.70
Milbemycin B, 5-O-demethyl-28-deoxy-25-ethyl-6,28-epoxy-23-hydroxyimino-, [6R,23S,25S(E)]-; (2αE,4E,5′S,6R,6′S,8E,11R,13R,15S,17αR,20αR,20βS)-6′-ethyl-3′,4′,5′,6,6′,7,10,11,14,15,17α,20,20α,20β-tetradecahydro-20β-hydroxy-5′,6,8,19-tetramethylspiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2′-[2H]pyran]-17-one 20-oxime.
DEFINITION
Milbemycin Oxime is a mixture of milbemycin A4 oxime and milbemycin A3 oxime. It contains NLT 95.0% and NMT 102.0% of the sum of milbemycin A4 oxime and milbemycin A3 oxime, calculated on the anhydrous basis. The ratio of milbemycin A4 oxime is NLT 0.75.