Natural delta hexalactone's cas code is 823-22-3
Natural gamma butyrolactone's cas code is 96-48-0
Natural gamma valerolactone's cas code is 108-29-2
Natural gamma hexalactone's cas code is 695-06-7
Natural gamma heptalactone's cas code is 105-21-5
Natural gamma octalactone's cas code is 104-50-7
