Abamectin

Abamectin is a mixture of the natural macrocyclic lactones avermectin B1a and avermectin B1b (Cay-17453). It has both insecticidal and anthelmintic actions and is used in both agriculture and veterinary medicine. Abamectin can inhibit nicotinic acetylcholine receptors of worms. It can also inhibit chikungunya virus (EC50 = 1.5 µM) and yellow fever virus. Formulations containing abamectin have been used in the control of insects in agriculture.Formal Name: Avermectin B1a: (10E,14E,16E)-(1R,4S,5'S,6S,6'R,8R,12S,13S,20R,21R,24S)-6'-[(S)-sec-butyl]-21,24-dihydroxy-5',11,13,22-tetramethyl-2-oxo-(3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene)-6-spiro-2'-(5',6'-dihydro-2'H-pyran)-12-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-alpha-L-arabino-hexopyranosyl)-3-O-methyl-alpha-L-arabino-hexopyranoside, , Avermectin B1b: (10E,14E,16E)-(1R,4S,5'S,6S,6'R,8R,12S,13S,20R,21R,24S)-21,22-dihydroxy-6'-isopropyl-5',11,13,22-tetramethyl-2-oxo-(3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene)-6-spiro-2'-(5',6'-dihydro-2'H-pyran)-12-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-alpha-L-arabino-hexopyranosyl)-3-O-methyl-alpha-L-arabino-hexopyranoside. CAS Number: 71751-41-2. Synonyms: Avermectin B1, Avermectin B1a (~80%) and Avermectin B1b (~20%) Mixture, MK-936, Rustomectin. Molecular Formula: C48H72O14 (for Avermectin B1a). Formula Weight: 873.1. Purity: >95%. Formulation: (Request formulation change), A crystalline solid. SMILES: C/C([C@@H](O[C@@]1([H])C[C@H](OC)[C@@H](O[C@]2([H])O[C@@H](C)[C@H](O)[C@@H](OC)C2)[C@H](C)O1)[C@@H](C)/C=C/C=C(CO3)/[C@@]([C@@]3([H])[C@H](O)C(C)=C4)(O)[C@]4([H])C5=O)=C\C[C@]6([H])C[C@@](O5)([H])C[C@]7(C=C[C@H](C)[C@@H](C(C)C)O7)O6.C/C([C@@H](O[C@@]. InChi Code: InChI=1S/C48H72O14.C47H70O14/c1-11-25(2)43-28(5)17-18-47(62-43)23-34-20-33(61-47)16-15-27(4)42(26(3)13-12-14-32-24-55-45-40(49)29(6)19-35(46(51)58-34)48(32,45)52)59-39-22-37(54-10)44(31(8)57-39)60-38-21-36(53-9)41(50)30(7)56-38,1-24(2)41-27(5)16-17-4. InChi Key: IBSREHMXUMOFBB-JFUDTMANSA-N.