ACCESSION: MSBNK-Eawag-EQ324951
RECORD_TITLE: MCLW; LC-ESI-QFT; MS2; CE: 15%; R=17500; [M-H]-
DATE: 2020.02.03
AUTHORS: E. Janssen [dtc], B. Lauper [com]
LICENSE: CC BY-SA
COPYRIGHT: Copyright (C) Eawag 2019
COMMENT: CONFIDENCE standard compound
COMMENT: UCHEM_ID 3249
COMMENT: NaToxAq - Natural Toxins and Drinking Water Quality - From Source to Tap (https://natoxaq.ku.dk)
CH$NAME: MCLW
CH$NAME: Microcystin LW
CH$NAME: (5R,8S,11R,12S,15S,18S,19S,22R)-15-(1H-indol-3-ylmethyl)-18-[(1E,3E,5S,6S)-6-methoxy-3,5-dimethyl-7-phenylhepta-1,3-dienyl]-1,5,12,19-tetramethyl-2-methylidene-8-(2-methylpropyl)-3,6,9,13,16,20,25-heptaoxo-1,4,7,10,14,17,21-heptazacyclopentacosane-11,22-dicarboxylic acid
CH$COMPOUND_CLASS: NA
CH$FORMULA: C54H72N8O12
CH$EXACT_MASS: 1024.5270
CH$SMILES: CO[C@@H](Cc1ccccc1)[C@@H](C)/C=C(C)/C=C/[C@@H]2NC(=O)[C@H](Cc3c[nH]c4ccccc34)NC(=O)[C@@H](C)[C@@H](NC(=O)[C@H](CC(C)C)NC(=O)[C@@H](C)NC(=O)C(=C)N(C)C(=O)CC[C@@H](NC(=O)[C@H]2C)C(O)=O)C(O)=O
CH$IUPAC: InChI=1S/C54H72N8O12/c1-29(2)24-42-52(69)61-46(54(72)73)33(6)48(65)59-43(27-37-28-55-40-19-15-14-18-38(37)40)51(68)57-39(21-20-30(3)25-31(4)44(74-10)26-36-16-12-11-13-17-36)32(5)47(64)58-41(53(70)71)22-23-45(63)62(9)35(8)50(67)56-34(7)49(66)60-42/h11-21,25,28-29,31-34,39,41-44,46,55H,8,22-24,26-27H2,1-7,9-10H3,(H,56,67)(H,57,68)(H,58,64)(H,59,65)(H,60,66)(H,61,69)(H,70,71)(H,72,73)/b21-20+,30-25+/t31-,32-,33-,34+,39-,41+,42-,43-,44-,46+/m0/s1
CH$LINK: CAS
157622-02-1
CH$LINK: CHEBI
133298
CH$LINK: PUBCHEM
CID:16760564
CH$LINK: INCHIKEY
CJIASZBWXIFQMU-LNXRSHCCSA-N
CH$LINK: CHEMSPIDER
21395874
AC$INSTRUMENT: Q Exactive Plus Orbitrap Thermo Scientific
AC$INSTRUMENT_TYPE: LC-ESI-QFT
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE HCD
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 15 % (nominal)
AC$MASS_SPECTROMETRY: RESOLUTION 17500
AC$CHROMATOGRAPHY: COLUMN_NAME XBridge C18 3.5um, 2.1x50mm, Waters
AC$CHROMATOGRAPHY: FLOW_GRADIENT 90/10 at 0 min, 50/50 at 4 min, 5/95 at 17 min, 5/95 at 25 min, 90/10 at 25.1 min, 90/10 at 30 min
AC$CHROMATOGRAPHY: FLOW_RATE 200 uL/min
AC$CHROMATOGRAPHY: RETENTION_TIME 11.783 min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B MeOH with 0.1% formic acid
MS$FOCUSED_ION: BASE_PEAK 1023.5204
MS$FOCUSED_ION: PRECURSOR_M/Z 1023.5197
MS$FOCUSED_ION: PRECURSOR_TYPE [M-H]-
MS$DATA_PROCESSING: RECALIBRATE loess on assigned fragments and MS1
MS$DATA_PROCESSING: REANALYZE Peaks with additional N2/O included
MS$DATA_PROCESSING: WHOLE RMassBank 2.99.1
PK$SPLASH: splash10-00di-9000000000-667e7e8ceca06cdeaa3d
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
1005.5094 C54H69N8O11- 1 1005.5091 0.27
1023.5199 C54H71N8O12- 1 1023.5197 0.25
PK$NUM_PEAK: 2
PK$PEAK: m/z int. rel.int.
1005.5094 444960.2 37
1023.5199 11781251 999
//
