Milbemycin Oxime
Mixture of milbemycin A3 oxime and
milbemycin A4 oxime
[129496-10-2] Milbemycin A3 Oxime
C31H43NO7 541.69
Milbemycin B, 5-demethoxy-28-deoxy-6,28-epoxy-5-(hydroxyamino)-25-methyl-, (6R,25R)-; (2R,2a′E,2a1′S,4′E,5S,6R,6′R,8′E,11′R,15′S,17a′R,20′Z,20a′R)-2a1′-Hydroxy-20′-(hydroxyimino)-5,6,6′,8′,19′-pentamethyl-2a1′,3,4,5,6,6′,7′,10′,11′,14′,15′,17a′,20′,20a′-tetradecahydro-2′H,17′H-spiro[pyran-2,13′-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17′-one.
Milbemycin A4 Oxime
C32H45NO7 555.71
Milbemycin B, 5-demethoxy-28-deoxy-6,28-epoxy-25-ethyl-5-(hydroxyamino)-, [6R,25R]-; (2R,2a′E,2a1′S,4′E,5S,6R,6′R,8′E,11′R,15′S,17a′R,20′Z,20a′R)-6-Ethyl-2a1′-hydroxy-20′-(hydroxyimino)-5,6′,8′,19′-tetramethyl-2a1′,3,4,5,6,6′,7′,10′,11′,14′,15′,17a′,20′,20a′-tetradecahydro-2′H,17′H-spiro[pyran-2,13′-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17′-one.
[129496-10-2] Milbemycin A3 Oxime
C31H43NO7 541.69
Milbemycin B, 5-demethoxy-28-deoxy-6,28-epoxy-5-(hydroxyamino)-25-methyl-, (6R,25R)-; (2R,2a′E,2a1′S,4′E,5S,6R,6′R,8′E,11′R,15′S,17a′R,20′Z,20a′R)-2a1′-Hydroxy-20′-(hydroxyimino)-5,6,6′,8′,19′-pentamethyl-2a1′,3,4,5,6,6′,7′,10′,11′,14′,15′,17a′,20′,20a′-tetradecahydro-2′H,17′H-spiro[pyran-2,13′-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17′-one.
Milbemycin A4 Oxime
C32H45NO7 555.71
Milbemycin B, 5-demethoxy-28-deoxy-6,28-epoxy-25-ethyl-5-(hydroxyamino)-, [6R,25R]-; (2R,2a′E,2a1′S,4′E,5S,6R,6′R,8′E,11′R,15′S,17a′R,20′Z,20a′R)-6-Ethyl-2a1′-hydroxy-20′-(hydroxyimino)-5,6′,8′,19′-tetramethyl-2a1′,3,4,5,6,6′,7′,10′,11′,14′,15′,17a′,20′,20a′-tetradecahydro-2′H,17′H-spiro[pyran-2,13′-[11,15]methano[1,5]dioxacyclooctadecino[9,8,7-cd]benzofuran]-17′-one.
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.