CH3CH2C
CH3CH2C is not a recognized chemical formula for a stable molecule in standard organic chemistry nomenclature. The sequence of atoms CH3CH2- typically represents an ethyl group, which is a radical or a substituent. The trailing 'C' suggests a single carbon atom that is not adequately bonded to complete a stable octet.
In organic chemistry, carbon atoms generally form four covalent bonds. An ethyl group (CH3CH2-) has its terminal
It is possible that CH3CH2C represents a fragment or a transition state in a reaction mechanism, or