What is the IUPAC name of cch2oh4?

'cch2oh4' is structurally incorrect. It is also symbolically incorrect.

Structurally it is written as 'CH3CH2OH'

Symbolically, elemental one letter symbols are ALWAYS a CAPITAL letter.

The IUPAC name is 'Ethanol' . Archaically, it is 'ethyl alcohol', or just 'alcohol', the stuff that you drink in beers, wines and spirits.