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610-05-5, 甲基-beta-木糖苷, Methyl beta-D-xylopyranoside, CAS:610-05-5 C6H12O5 / 164.16COA: Product name: Methyl  beta-D-xylopyranoside       CAS: 610-05-5  M.F.: C6H12O5          M.W.: 164.16      Batch No: 100610      Quantity: 1g from 7g     Items Standards Results Appearance White crystalline power Positive Solubility Soluble in H2O and less soluble in petroleum ether Complies Appearance of solution Dissolve 0.5 gin 10 ml of water, and the solution should be clear Complies NMR and ESI-MS Should comply Complies Identification IR and TLC Positive Melting point 145℃ ~ 150℃ 148℃ ~ 150℃ Optical Activity [α]20/D (in water) -64 o ~ -65o -65.4° Loss Weight On Dryness Max. 0.5% Complies Residue on ignition Max. 0.5% 0.05% Heavy metal Max. 20ppm Complies TLC (15%H2SO4-C2H5OH) One spot Complies Assay Min. 98% 99.2%