Electron impact mass spectra of naturally occurring bornyl, 4-terpinenyl and α- terpinyl C3—C5 esters

The electron impact (70 eV) mass spectra of 15 monoterpene esters, namely bornyl, 4-terpinenyl and α-terpinyl propionates, butyrates, isobutyrates, valerates and isovalerates are reported and discussed: the fragment ions of diagnostic value for structural analyses are described.