Wiktionary
methyl formate
n. (context organic compound English) the methyl ester of formic acid (HCO2CH3)
Wikipedia
Methyl formate
Methyl formate, also called methyl methanoate, is the methyl ester of formic acid. The simplest example of an ester, it is a colorless liquid with an ethereal odour, high vapor pressure, and low surface tension. It is a precursor to many other compounds of commercial interest.
In some cases people have found that the pleasant smell is of lemons or lemonade.
Usage examples of "methyl formate".
I am most concerned about the flammable gases extant on the planet, such as methane, hydrogen, and methyl formate.