ACCESSION: MSBNK-Eawag-EQ435851
RECORD_TITLE: [D-Asp3,E-Dhb7]-Microcystin-RR; 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 4358
COMMENT: NaToxAq - Natural Toxins and Drinking Water Quality - From Source to Tap (https://natoxaq.ku.dk)
CH$NAME: [D-Asp3,E-Dhb7]-Microcystin-RR
CH$NAME: 8,15-bis[3-(diaminomethylideneamino)propyl]-2-ethylidene-18-(6-methoxy-3,5-dimethyl-7-phenylhepta-1,3-dienyl)-5,19-dimethyl-3,6,9,13,16,20,25-heptaoxo-1,4,7,10,14,17,21-heptazacyclopentacosane-11,22-dicarboxylic acid
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C48H73N13O12
CH$EXACT_MASS: 1023.5502
CH$SMILES: CC=C1C(=O)NC(C(=O)NC(C(=O)NC(CC(=O)NC(C(=O)NC(C(C(=O)NC(CCC(=O)N1)C(=O)O)C)C=CC(=CC(C)C(CC2=CC=CC=C2)OC)C)CCCN=C(N)N)C(=O)O)CCCN=C(N)N)C
CH$IUPAC: InChI=1S/C48H73N13O12/c1-7-31-42(66)55-29(5)41(65)59-34(16-12-22-54-48(51)52)44(68)61-36(46(71)72)25-39(63)57-33(15-11-21-53-47(49)50)43(67)58-32(28(4)40(64)60-35(45(69)70)19-20-38(62)56-31)18-17-26(2)23-27(3)37(73-6)24-30-13-9-8-10-14-30/h7-10,13-14,17-18,23,27-29,32-37H,11-12,15-16,19-22,24-25H2,1-6H3,(H,55,66)(H,56,62)(H,57,63)(H,58,67)(H,59,65)(H,60,64)(H,61,68)(H,69,70)(H,71,72)(H4,49,50,53)(H4,51,52,54)
CH$LINK: CAS
202120-08-9
CH$LINK: PUBCHEM
CID:91977111
CH$LINK: INCHIKEY
JIVQGWHGELHXHV-UHFFFAOYSA-N
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 7.057 min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B MeOH with 0.1% formic acid
MS$FOCUSED_ION: BASE_PEAK 190.928
MS$FOCUSED_ION: PRECURSOR_M/Z 1022.5429
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$SPLASH: splash10-00di-9000000000-f857a39aa3de1568a7a2
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
1004.5294 C48H70N13O11- 1 1004.5323 -2.88
1022.5436 C48H72N13O12- 1 1022.5429 0.7
PK$NUM_PEAK: 2
PK$PEAK: m/z int. rel.int.
1004.5294 35457.9 28
1022.5436 1260228.5 999
//
