ACCESSION: MSBNK-Athens_Univ-AU263602
RECORD_TITLE: Emamectin B1a; LC-ESI-QTOF; MS2; CE: 20 eV; R=35000; [M+H]+
DATE: 2019.05.30
AUTHORS: Nikiforos Alygizakis, Katerina Galani, Nikolaos Thomaidis, University of Athens
LICENSE: CC BY
COPYRIGHT: Copyright (C) 2019 Department of Chemistry, University of Athens
COMMENT: CONFIDENCE standard compound
COMMENT: INTERNAL_ID 2636
CH$NAME: Emamectin B1a
CH$NAME: Emamectin
CH$NAME: (1`R,2R,3S,4`S,6S,8`R,10`E,12`S,13`S,14`E,16`E,20`R,21`R,24`S)-2-[(2S)-butan-2-yl]-21`,24`-dihydroxy-12`-[(2R,4S,5S,6S)-4-methoxy-5-[(2S,4S,5S,6S)-4-methoxy-6-methyl-5-(methylamino)oxan-2-yl]oxy-6-methyloxan-2-yl]oxy-3,11`,13`,22`-tetramethylspiro[2,3-dihydropyran-6,6`-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene]-2`-one
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C49H75NO13
CH$EXACT_MASS: 885.5238415
CH$SMILES: CC[C@H](C)[C@H]1O[C@@]2(C[C@@H]3C[C@@H](C\C=C(C)\[C@@H](O[C@H]4C[C@H](OC)[C@@H](O[C@H]5C[C@H](OC)[C@@H](NC)[C@H](C)O5)[C@H](C)O4)[C@@H](C)\C=C\C=C4/CO[C@@H]5[C@H](O)C(C)=C[C@@H](C(=O)O3)[C@]45O)O2)C=C[C@@H]1C
CH$IUPAC: InChI=1S/C49H75NO13/c1-12-26(2)44-29(5)18-19-48(63-44)24-35-21-34(62-48)17-16-28(4)43(27(3)14-13-15-33-25-56-46-42(51)30(6)20-36(47(52)59-35)49(33,46)53)60-40-23-38(55-11)45(32(8)58-40)61-39-22-37(54-10)41(50-9)31(7)57-39/h13-16,18-20,26-27,29,31-32,34-46,50-51,53H,12,17,21-25H2,1-11H3/b14-13+,28-16+,33-15+/t26-,27-,29-,31-,32-,34+,35-,36-,37-,38-,39-,40-,41-,42+,43-,44+,45-,46+,48+,49+/m0/s1
CH$LINK: CHEBI
39231
CH$LINK: PUBCHEM
CID:11549937
CH$LINK: INCHIKEY
CXEGAUYXQAKHKJ-NSBHKLITSA-N
CH$LINK: CHEMSPIDER
16738622
AC$INSTRUMENT: Bruker maXis Impact
AC$INSTRUMENT_TYPE: LC-ESI-QTOF
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE POSITIVE
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE CID
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 20 eV
AC$MASS_SPECTROMETRY: RESOLUTION 35000
AC$CHROMATOGRAPHY: COLUMN_NAME Acclaim RSLC C18 2.2um, 2.1x100mm, Thermo
AC$CHROMATOGRAPHY: FLOW_GRADIENT 99/1 at 0-1 min, 61/39 at 3 min, 0.1/99.9 at 14-16 min, 99/1 at 16.1-20 min
AC$CHROMATOGRAPHY: FLOW_RATE 200 uL/min at 0-3 min, 400 uL/min at 14 min, 480 uL/min at 16-19 min, 200 uL/min at 19.1-20 min
AC$CHROMATOGRAPHY: RETENTION_TIME 12.172 min
AC$CHROMATOGRAPHY: SOLVENT A 90:10 water:methanol with 0.01% formic acid and 5mM ammonium formate
AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.01% formic acid and 5mM ammonium formate
MS$FOCUSED_ION: BASE_PEAK 886.5328
MS$FOCUSED_ION: PRECURSOR_M/Z 886.5311
MS$FOCUSED_ION: PRECURSOR_TYPE [M+H]+
MS$DATA_PROCESSING: RECALIBRATE identity on assigned fragments and MS1
MS$DATA_PROCESSING: WHOLE RMassBank 2.10.1
PK$SPLASH: splash10-000i-0000000090-16e21d54ff335a5daaa4
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
126.0896 C4H14O4+ 2 126.0887 7.11
158.1164 C8H16NO2+ 2 158.1176 -7.26
159.1203 C7[13]CH16NO2+ 1 159.1215 -7.06
302.1964 C15H28NO5+ 6 302.1962 0.52
886.5361 C49H76NO13+ 1 886.5311 5.58
887.5386 C48[13]CH76NO13+ 1 887.535 4.09
888.542 C47[13]C2H76NO13+ 1 888.5384 4.1
PK$NUM_PEAK: 7
PK$PEAK: m/z int. rel.int.
126.0896 1288 5
158.1164 27972 111
159.1203 2144 8
302.1964 5476 21
886.5361 250172 999
887.5386 135300 540
888.542 35548 141
//
