8a-hydroxy-avermectin B1a

8a-hydroxy-avermectin B1a, term code RF-00005890-PAR of the EFSA Harmonized terminology for scientific research. IDENTIFIERS: IUPAC name: (2aE,4Z,5'S,6S,6'R,7S,8Z,11R,13S,15S,17aR,20R,20aR,20bS)-6'-[(2S)-butan-2-yl]-2,20,20b-trihydroxy-5',6,8,19-tetramethyl-17-oxo-5',6,6',10,11,14,15,17,17a,20,20a,20b-dodecahydro-2H,7H-spiro[11,15-methanofuro[4,3,2-pq][2,6]benzodioxacyclooctadecine-13,2'-pyran]-7-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-a-L-arabino-hexopyranosyl)-3-O-methyl-a-L-arabino-hexopyranoside. Chemical formula: C48H72O15. Simplified molecular-input line-entry system (SMILES) notation: CO[C@H]1CC@@HO[C@@H]2C@@HCC@@HO[C@@H]3C(C)=CC[C@@H]6CC@HC[C@@]7(O6)C=CC@HC@HC@@HCC. International Chemical Identifier (InChITM): InChI=1S/C48H72O15/c1-11-24(2)42-27(5)17-18-47(63-42)23-32-20-31(62-47)16-15-26(4)41(59-38-22-36(55-10)43(30(8)57-38)60-37-21-35(54-9)40(50)29(7)56-37)25(3)13-12-14-33-45(51)61-44-39(49)28(6)19-34(46(52)58-32)48(33,44)53/h12-15,17-19,24-25,27,29-32,34-45,49-51,53H,11,16,20-23H2,1-10H3/b13-12-,26-15-,33-14-/t24-,25-,27-,29-,30-,31+,32?,34-,35-,36-,37-,38-,39+,40-,41-,42+,43-,44+,45?,47+,48+/m0/s1.