Ion Species

Measured m/z [M-H]⁻

Molecular Formula (MFG) [M]

Difference (ppm)

Unknown-SE

405.0058

C₁₃H₁₄N₂O₉S₂

2.4

ES

197.9858

C₇H₅NO₄S

4.3

Unknown-SE-ES

207.0200

C₆H₉NO₅S

0.77