Hello, I would appreciate some help with this question, thank you!Screenshot 2026-03-04 at 10.38.07 AM.png
Molecular ion peak
m/z 158 = M⁺•
CH3CH2CH2CH2CH2C(=O)OCH2CH2CH3⁺•
Base peak
m/z 56
This is the tallest or most abundance peak, so this is the base peak.
mass spectrum.png