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14982-50-4, D-半乳糖醛酸,, D-Galacturonic acid,CAS:14982-50-4 C6H12O8 /212.15 MFCD00071585Product name: D-Galacturonic acid monohydrate CAS: 14982-50-4 M.F.: C6H12O8 M.W.: 212.15 No: 20120208 Quantity: 732g Items Standards Results Appearance White powder Complies MS and NMR Should comply Complies Identification IR and TLC Complies A (UV, at 260 nm) <0.3 Complies Optical activity [a ] 20D (in H2O) From +55° to +60° +58.2° Residue on ignition Max. 0.5% 0.1% TLC One spot One spot Water Max. 10% 8.3% Assay by titration Min. 97% 98.2% References: 1. Tang HR, Belton PS, Davies SC, Hughes DL, Carbohydr. Res. 2001, Feb15, 330(3), p391-9 2. Barbiera M, Granda E, Kovensky J, Carbohydr. Res. 2007, 342, 17, p2635-2640