It seems like you are referring to a chemical notation. The "6O" likely indicates six oxygen atoms, and "little 2 at bottom" suggests that there is a subscript '2' next to the oxygen, which would denote that the notation is for O₂.
If you meant \( \text{C}6\text{H}{12}\text{O}_2 \), that could represent a specific organic compound like a fatty acid or other related compounds. If you're referring to something specific, please provide additional context, and I'll be happy to help!