2 mg) étaient séparément portés à reflux à 70°C pendant 18 h dans 2.5 ml de méthanol contenant 1.5 ml de 0.9 N HCl sous agitation magnétique. Les deux milieux réactionnels étaient neutralisés avec une solution aqueuse de sodium carbonate et extraits au chloroforme. L'analyse en spectrométrie de masse utilisant l'ionisation douce (MALDI-TOF) montrait seulement le pic correspondant à la longue chaine de base de chaque céramide ,
Poudre amorphe; C 17 H 34 O 2 ,
Solide amorphe; C 21 H 42 O 2 ,
Poudre blanche; C 30 H 50 O; P.F. [266-268]°C ,
Poudre blanche; C 30 H 50 O 2 ; P.F. [256-257] o C, p.75 ,
Poudre blanche; C 30 H 48 O 3 ; P.F. 170 o C ,
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