Name

Molecular Structure

Molecular Formula

Monoisotopic Mass [M+H]⁺

Average Mass [M+H]⁺

3-hydroxypicolinic acid (3-hydroxy-2-pyridinecarboxylic acid)

C₆H₅NO₃

140.0347

140.119

nicotinic acid-N-oxide

C₆H₅NO₃

140.0347

140.119

2'-6'-dihydroxyacetophenone

C₈H₈O₃

153.0552

153.158

gentisic acid
(2,5-dihydroxybenzoic acid)

C₇H₆O₄

155.0344

155.130

a-cyano-4-hydroxycinnamic acid

C₁₀H₇NO₃

190.0502

190.178

ferulic acid
(4-hydroxy-3-methoxycinnamic acid)

C₁₀H₁₀O₄

195.0657

195.195

sinapinic acid
(3,5-dimethoxy-4-hydroxycinnamic acid)

C₁₁H₁₂O₅

225.0763

225.222