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Soluble organic compounds detected in the Murchison Meteorite (++++>1000 p.p.m., +++>100 p.p.m., ++>10 p.p.m., +>1 ppm. Adapted from (Pizzarello 2004).).
| amino acids | ++ |
| carboxylic acids | +++ |
| dicarboxylic acids | ++ |
| hydroxy acids | ++ |
| sulfonic acids | ++++ |
| basic N-heterocycles | + |
| purines & pyrimidines | + |
| pyridine carboxylic acids | + |
| amides | ++ |
| amines | ++ |
| alcohols | ++ |
| aldehydes & ketones | ++ |
| aliphatic hydrocarbons | ++ |
| aromatic hydrocarbons | ++ |
| sugar alcohols & acids | + |
