Eprinomectin
C50H75NO14 (Component B1a)
914.13
C49H73NO14 (Component B1b) 900.10
Component B1a
Avermectin A1a, 4″-(acetylamino)-5-O-demethyl-4″-deoxy-, (4″R)-;
(2aE,4E,5′S,6S,6′R,7S,8E,11R,13S,15S,17aR,20R,20aR,20bS)-6′-(S)-sec-butyl-5′,6,6′,7,10,11,14,15,17a,20,20a,20b-dodecahydro-20,20b-dihydroxy-5′,6,8,19-tetramethyl-17-oxospiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2′-[2H]pyran]-7-yl-4-O-(4-acetamido-2,4,6-trideoxy-3-O-methyl-α-l-lyxo-hexopyranosyl)-2,6-dideoxy-3-O-methyl-α-l-arabino-hexopyranoside [or (4″R)-4″-(acetylamino)-5-O-demethyl-4″-deoxyavermectin A1a]
[133305-88-1] Component B1b
Avermectin A1a, 4″-(acetylamino)-5-O-demethyl-25-de(1-methylpropyl)-4″-deoxy-25-(1-methylethyl)-, (4″R)-;
(2aE,4E,5′S,6S,6′R,7S,8E,11R,13S,15S,17aR,20R,20aR,20bS)-5′,6,6′,7,10,11,14,15,17a,20,20a,20b-Dodecahydro-20,20b-dihydroxy-6′-isopropyl-5′,6,8,19-tetramethyl-17-oxospiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2′-[2H]pyran]-7-yl-4-O-(4-acetamido-2,4,6-trideoxy-3-O-methyl-α-l-lyxo-hexopyranosyl)-2,6-dideoxy-3-O-methyl-α-l-arabino-hexopyranoside [or (4″R)-4″-(acetylamino)-5-O-demethyl-25-de(1-methyl-propyl)-4″-deoxy-25-(1-methylethyl)avermectin A1a] [133305-89-2]
C49H73NO14 (Component B1b) 900.10
Component B1a
Avermectin A1a, 4″-(acetylamino)-5-O-demethyl-4″-deoxy-, (4″R)-;
(2aE,4E,5′S,6S,6′R,7S,8E,11R,13S,15S,17aR,20R,20aR,20bS)-6′-(S)-sec-butyl-5′,6,6′,7,10,11,14,15,17a,20,20a,20b-dodecahydro-20,20b-dihydroxy-5′,6,8,19-tetramethyl-17-oxospiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2′-[2H]pyran]-7-yl-4-O-(4-acetamido-2,4,6-trideoxy-3-O-methyl-α-l-lyxo-hexopyranosyl)-2,6-dideoxy-3-O-methyl-α-l-arabino-hexopyranoside [or (4″R)-4″-(acetylamino)-5-O-demethyl-4″-deoxyavermectin A1a]
[133305-88-1] Component B1b
Avermectin A1a, 4″-(acetylamino)-5-O-demethyl-25-de(1-methylpropyl)-4″-deoxy-25-(1-methylethyl)-, (4″R)-;
(2aE,4E,5′S,6S,6′R,7S,8E,11R,13S,15S,17aR,20R,20aR,20bS)-5′,6,6′,7,10,11,14,15,17a,20,20a,20b-Dodecahydro-20,20b-dihydroxy-6′-isopropyl-5′,6,8,19-tetramethyl-17-oxospiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2′-[2H]pyran]-7-yl-4-O-(4-acetamido-2,4,6-trideoxy-3-O-methyl-α-l-lyxo-hexopyranosyl)-2,6-dideoxy-3-O-methyl-α-l-arabino-hexopyranoside [or (4″R)-4″-(acetylamino)-5-O-demethyl-25-de(1-methyl-propyl)-4″-deoxy-25-(1-methylethyl)avermectin A1a] [133305-89-2]
DEFINITION
Eprinomectin is a mixture of component B1a (C50H75NO14) and component B1b (C49H73NO14). It contains NLT 90.0% of component B1a (C50H75NO14) and NLT 95.0% of components B1a (C50H75NO14) and B1b (C49H73NO14), calculated on the anhydrous, solvent-free, and antioxidant-free basis. It may contain small amounts of a suitable antioxidant.