Source:http://linkedlifedata.com/resource/umls/id/C0035549
MSH: A pentose active in biological systems usually in its D-form.,CSP: aldopentose found in riboflavin and ribonucleic acid (RNA) as well as in free ribonucleosides and ribonucleotides.,NCI: A pentose which is an epimer at C-3 (in Fisher projection) of xylose. Structurally, it is a xylose with the OH and H groups interchanged at carbon-3.