.beta.-D-Ribofuranose tetraacetate .beta.-D-Ribofuranose, tetraacetate 1,2,3,5-Tetra-O-acetyl-.beta.-D-ribofuranose 13035-61-5 NSC18738 Ribofuranose, tetraacetate, .beta.-D- Tetra-O-acetyl-.beta.-D-ribofuranose