Question
M+ is 154

Identify fragments of 84, 93, 111, 121, 141 m/z
PST SET ot+ SOT 36
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in the mass spectrum fragments are formed when some group is cleaved from the main structure

Он (EJ Он (Z) (E) formed by loss of methyl group m/z 141 (E) (E) (Z) (E) m/z 93 m/z 121 (E) (E (Z) m/z 111 m/z 84

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