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. 2013 Dec 17;3(4):538–549. doi: 10.3390/life3040538

Table 2.

Amino acids found under early Earth experimental conditions.

Residue Mass (m/z) (monoisotopic, MH+1) Peak Identification Chemical Formula
72.03712 Alanine C3H5NO
58.02147 Glycine C2H3NO
116.02695 Aspartic Acid C4H5NO3
114.08407 Isoleucine C6H11NO
88.03203 Serine C3H5NO2
102.04768 Threonine C4H7NO2
113.08407 Leucine C6H11NO
115.04293 Asparagine C4H6N2O2
129.09497 Lysine C6H12N2O
100.06842 Valine C5H9NO
130.0426 Glutamic Acid C5H7NO3
148.06842 Phenylalanine C9H9NO
98.05277 Proline C5H7NO