Fig. 2. Exploring carbonaceous asteroid from multi-approaches of organic astrochemistry.

Pyrimidine nucleobase (uracil) and the intramolecular electrostatic potential are shown as a representative primordial organic molecule¹³. Chiral amino acids and the chromatographic enantiomer separation are shown as one of primary science targets^11,15. The carbonate, sulfate, and halide salts formed by the interaction of water and minerals will gives us an insight into indigenous aqueous alteration processes¹⁷. Both soluble and insoluble organic matter (SOM and IOM) are important organic components in the asteroid parent body^11,18. The SOM and IOM pie charts do not show a strict quantitative relationship between the two fractions.