ROCOCH2CH2CH2CH2CH3

ROCOCH2CH2CH2CH2CH3 refers to the chemical compound propyl butanoate. It is an ester with the molecular formula C7H14O2. The "ROCO" part of the name indicates the ester functional group, where R is an alkyl group. In this case, the R group attached to the oxygen is propyl (CH2CH2CH3), and the acyl group is derived from butanoic acid, which is butanoyl (COCH2CH2CH3). Therefore, propyl butanoate is formed from the reaction of butanoic acid and propanol.

Propyl butanoate is a colorless liquid with a fruity aroma, often described as resembling apple or pineapple. This characteristic scent makes it useful in the flavor and fragrance industry. It can be found naturally in some fruits, contributing to their overall scent profile. Due to its ester structure, it is relatively stable under normal conditions but can undergo hydrolysis in the presence of acids or bases to revert back to butanoic acid and propanol. Its solubility in water is limited, but it is miscible with many organic solvents.