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| Analysis on Electron Impact Fragmentation Characteristics of Indazole-3-carboxamide Analogues Synthetic Cannabinoids |
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| DOI： |
| KeyWord:new psychoactive substances synthetic cannabinoids indazole-3-carboxamide gas chromatography mass fragmentation characteristics |
| Author | Institution |
| XU Fang-min，LI Hai-bo，WEI Wan-li，WANG Rui-hua，LIU Ling-yun，LI Qiang |
1. Institute of Forensic Science，Public Security Bureau of Jiangyin，Jiangyin ，China; 2. Institute of Forensic Science，Public Security Bureau of Changzhou，Changzhou ，China; 3. Institute of Forensic Science，Public Security Bureau of Wuxi，Wuxi ，China; 4. Institute of Forensic Science， Ministry of Public Security，Beijing ，China |
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| Abstract: |
| A gas chromatography－mass spectrometry（GC－MS） was applied to investigate the mass fragmentation characteristics of 9 indazole-3-carboxamide analogues synthetic cannabinoids in electron ionization（EI），including MDMB－CHMINACA，5F－AB－PINACA，5F－AMB，AB－CHMINACA，AB－FUBINACA，AB－PINACA，MDMB－FUBINACA，AMB－FUBINACA and ADB－BUTINACA．The obtained mass spectra were analyzed and the EI fragmentation patterns of indazole-3-carboxamide analogues synthetic cannabinoids were speculated．Results showed that in the EI mode，the C—N cleavage of the amide group connected to the indazole ring at position 3 is the main fragmentation pathway，and the McLafferty rearrangement was happened during the fragmentation．The main fragmentation ions and mass fragmentation characteristic of indazole-3-carboxamide analogues synthetic cannabinoids in EI modes were summarized in this paper，which is useful for identification on the new psychoactive substances of unknown indazole-3-carboxamide analogues synthetic cannabinoids in practical work． |
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