The formation of organic compounds by the reaction of Iron(II) sulfide and carbonic acid is described by the following chemical equation:
2 FeS + H2CO3 --> 2 FeO + 1/n (CHOH)n + 2 S
If one of the carbon-containing products has a molar mass of 3.00 x 10^2 g/mol, what is the chemical formula of the product?