C3h6o

C₃H₆O is the molecular formula for several organic compounds (it’s an isomeric formula). Examples include:
- **Propanal (propionaldehyde)** — an aldehyde with the structure CH₃CH₂CHO
- **Acetone (propanone)** — a ketone with the structure (CH₃)₂CO
- **Allyl alcohol** — an alcohol with the structure CH₂=CHCH₂OH

So, C₃H₆O represents compounds containing three carbon, six hydrogen, and one oxygen atom, arranged in various ways.