> "The diversity of soluble organic molecules detected in the Ryugu samples is comparable to the diversity of organic molecules found in carbonaceous meteorites. However, the molecular distribution of low-molecular-weight organic compounds is relatively low, similar to the distribution of organic matter in carbonaceous meteorites that have been strongly affected by aqueous alteration. This is also consistent with mineralogical characteristics revealed by the initial analysis teams."

So there's a class of meteorites, carbonaceous chondrites that have up to 3% of organic matter. 5% of all meteorites belong to this class. The Hayabusa2 samples have the same level of organic matter.

Cool. A new rock. But the cooler part is that these rocks were likely exposed to water.