Diacetone-D-xylose, CAS:20881-04-3

1,2:3,5-Di-O-isopropylidene-a-D-xylofuranose, CAS Number20881-04-3Product Name1,2:3,5-Di-O-isopropylidene-alpha-D-xylofuranoseIUPAC Name(1S,2R,6R,8R)-4,4,11,11-tetramethyl-3,5,7,10,12-pentaoxatricyclo[6.4.0.02,6]dodecaneMolecular FormulaC11H18O5Molecular Weight230.26 g/molInChIInChI=1S/C11H18O5/c1-10(2)12-5-6-7(14-10)8-9(13-6)16-11(3,4)15-8/h6-9H,5H2,1-4H3/t6-,7+,8-,9-/m1/s1InChI KeyNKZDPBSWYPINNF-BZNPZCIMSA-NSMILESCC1(OCC2C(O1)C3C(O2)OC(O3)(C)C)CCanonical SMILESCC1(OCC2C(O1)C3C(O2)OC(O3)(C)C)CIsomeric SMILESCC1(OC[C@@H]2[C@H](O1)[C@@H]3[C@H](O2)OC(O3)(C)C)C CAS No: 20881-04-3 Synonyms: Diacetone-D-xylose MDL No: MFCD00063224 Chemical Formula: C11H18O5 Molecular Weight: 230.26COA:Product name:?1,2:3,5-Di-O-isopropylidene-alpha-D-xylofuranose;?Diacetone-D-xyloseCAS:?20881-04-3??????????????M.F.:?C11H18O5??????????????M.W.:?230.26Batch No: 20120208? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Quantity:836gItemsStandardsResultsAppearanceWhite crystalline powderPositiveSolubilitySoluble in CHCl3?andinsoluble in waterCompliesNMR and ESI-MSShould complyCompliesIdentificationIR and TLCPositiveMelting point40??~45?43??~45?Optical Activity[?]20/D (c=3 inAcetone)18?o?~ 20o19.4?Loss Weight On DrynessMax. 0.5%CompliesResidue on ignitionMax. 0.5%0.05%Heavy metalMax. 20ppmCompliesTLC?(15%H2SO4-C2H5OH)One spotCompliesAssayMin. 98%99.2%References:1. Lin TY, Chang HC, Lagow RJ, J. Org. Chem. 1999, Oct 29, 64(22), 8127-8129