Kalmar "aldo-hexose" kalma ce ta kimiyya da aka yi amfani da ita a cikin nazarin halittu don kwatanta nau'in kwayoyin carbohydrate. Musamman, yana nufin kwayar cutar sikari mai guda shida wacce ta ƙunshi ƙungiyar aldehyde (-CHO) azaman rukunin aikinta. Misalan aldo-hexoses sun haɗa da glucose, mannose, da galactose.
