Manna, crystalline forms

Recently, French33 has been able to prepare verbascotetraitol in crystalline form, by separation of the reduced oligosaccharides from ash manna. Likewise, the trisaccharide galactotriose, which is a component moiety in verbascose, has been obtained33 as a crystalline material. Although these compounds may eventually prove to be valuable reference compounds in the detailed examination of the verbascose structure, definitive, structural studies on these new compounds are as yet lacking. 

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