5-Thio-alpha-D-glucopyranose

5-Thio-D-glucose CAS No 10227-19-7 MDL No MFCD00006663 Chemical Formula C6H12O5S Molecular Weight 196.22 g/mol Smiles C(C1C(C(C(C(S1)O)O)O)O)O Harmonized Tariff Codes Switzerland: 29349999 - USA: 2934999001 - Slovakia: 2934999090 - UK: 2934999090 - China: 2934999099 CAS No: 20408-97-3,10227-19-7 MDL No: MFCD00148892 Chemical Formula: C6H12O5S Molecular Weight: 196.22 COA: Product name: 5-Thio-D-glucose, predominantly alpha-anomer M.F. : C 6 H 12 O 5 S M.W. : 196.22 CAS : 20408-97-3 Items Standards Results Appearance White or off-white powder Complies Solubility Easily soluble in water, insoluble in CHCl 3 Complies NMR and MS Should comply Complies Melting point 130 ? ~140 ? 135 ? ~137 ? Optical Activity [?]20/D (c=1 in0.1 MHCl) +220 o ~ +230 o +223.5? Residue on ignition Max. 0.5% 0.1% Heavy metal Max.50ppm Complies TLC Should be one spot One spot Assay by HPLC Min. 98% 98.4% References: 1. Cantour-Galcera M-O, Ortiz-Mellet C, Defaye J, Carhohydr. Res. 1996, 281, p119