MassBank Record: MSBNK-MSSJ-MSJ01590
ACCESSION: MSBNK-MSSJ-MSJ01590
RECORD_TITLE: Clonazepam; LC-ESI-QQ; MS2; ESI; NEGATIVE; CE 20 V; [M-H]-
DATE: 2023.03.24
AUTHORS: Koji Yamaguchi, Department of Legal Medicine, Nippon Medical School, 1715 Kamagari, Inzai-shi, Chiba 270-1694, Japan.
LICENSE: CC BY
COPYRIGHT: Koji Yamaguchi, Department of Legal Medicine, Nippon Medical School, 1715 Kamagari, Inzai-shi, Chiba 270-1694, Japan.
COMMENT: Original data are in the 20230324-3.xlsx file.
COMMENT: This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 23HP8017 to the Mass Spectrometry Society of Japan.
CH$NAME: Clonazepam
CH$COMPOUND_CLASS: Non-natural product
CH$FORMULA: C15H10ClN3O3
CH$EXACT_MASS: 315.04105
CH$SMILES: C1C(=O)NC2=C(C=C(C=C2)[N+](=O)[O-])C(=N1)C3=CC=CC=C3Cl
CH$IUPAC: InChI=1S/C15H10ClN3O3/c16-12-4-2-1-3-10(12)15-11-7-9(19(21)22)5-6-13(11)18-14(20)8-17-15/h1-7H,8H2,(H,18,20)
CH$LINK: CAS
1622-61-3
CH$LINK: CHEMSPIDER
2700
CH$LINK: INCHIKEY
DGBIGWXXNGSACT-UHFFFAOYSA-N
CH$LINK: PUBCHEM
CID:2802
AC$INSTRUMENT: LCMS-8040 coupled to Nexera XR (Shimadzu, Kyoto, Japan).
AC$INSTRUMENT_TYPE: LC-ESI-QQ
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 20 V
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$CHROMATOGRAPHY: COLUMN_NAME InertSustain C18 ID 2.1 microm, 2.1 x 100 mm (GL Science, Tokyo, Japan).
AC$CHROMATOGRAPHY: FLOW_GRADIENT 90/10 at 0 min, linear gradient from 90/10 to 2/98 at 0-9 min, 2/98 at 9-12 min, linear gradient from 2/98 to 90/10 at 12-12.1 min, 90/10 at 12.1-15 min.
AC$CHROMATOGRAPHY: FLOW_RATE 200 microl/min
AC$CHROMATOGRAPHY: RETENTION_TIME 8.612 min
AC$CHROMATOGRAPHY: SOLVENT A water with 10 mM ammonium formate
AC$CHROMATOGRAPHY: SOLVENT B methanol
MS$FOCUSED_ION: PRECURSOR_M/Z 314.03323
MS$FOCUSED_ION: PRECURSOR_TYPE [M-H]-
PK$SPLASH: splash10-004r-0090000000-710795f9d09daf85a01a
PK$NUM_PEAK: 15
PK$PEAK: m/z int. rel.int.
35 10888 51
205 4466 21
219 3054 14
220 4176 19
232 22563 105
247 31044 145
248 53048 247
261 6576 31
266 2605 12
269 2454 11
271 2646 12
278 214249 999
286 120480 562
287 10462 49
314 37811 176
//