. 2008 Mar 6;43(8):1099–1109. doi: 10.1002/jms.1394

Table 1.

LC/Q‐TOF MS and MS² data obtained for arbidol and M1

	Measured mass	Calculated mass	Formula	Error		Ion type
	Measured mass	Calculated mass	Formula	mDa	ppm	Ion type
Arbidol	477.0847	477.0848	C₂₂H₂₆N₂O₃SBr	−0.1	−0.2	Even electron
MS² (m/z 477)	432.0259	432.0269	C₂₀H₁₉NO₃SBr	−1.0	−2.3	Even electron
	387.9991	388.0007	C₁₈H₁₅NO₂SBr	−1.0	−2.3	Even electron
	323.0153	323.0157	C₁₄H₁₄NO₃Br	−0.4	−1.3	Odd electron
	293.9763	293.9767	C₁₂H₁₁NO₃Br	−0.4	−1.3	Even electron
	278.9880	278.9895	C₁₂H₁₀NO₂Br	−1.5	−5.3	Odd electron
M1	493.0797	493.0798	C₂₂H₂₆N₂O₄SBr	−0.1	−0.2	Even electron
MS² (m/z 493)	368.0717	368.0736	C₁₆H₂₁N₂O₃Br	−1.9	−5.0	Odd electron
	323.0153	323.0157	C₁₄H₁₄NO₃Br	−0.4	−1.3	Odd electron
	278.9886	278.9895	C₁₂H₁₀NO₂Br	−0.9	−3.2	Odd electron

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