ACCESSION: MSBNK-MSSJ-MSJ01593
RECORD_TITLE: Clonazepam; LC-ESI-QQ; MS2; ESI; NEGATIVE; CE 50 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$MASS_SPECTROMETRY: COLLISION_ENERGY 50 V
AC$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$SPLASH: splash10-00ku-9570000000-032e7069afa2b8304a52
PK$NUM_PEAK: 31
PK$PEAK: m/z int. rel.int.
  26 305 17
  35 17714 999
  42 2334 132
  46 1899 107
  66 549 31
  79 611 34
  90 305 17
  122 305 17
  139 305 17
  140 2645 149
  146 557 31
  154 611 34
  164 2089 118
  165 1224 69
  176 305 17
  177 305 17
  190 305 17
  191 5878 331
  192 1142 64
  202 611 34
  204 918 52
  205 610 34
  219 9597 541
  220 608 34
  231 2083 117
  247 2345 132
  250 527 30
  279 305 17
  286 476 27
  288 584 33
  313 611 34
//