纯度  98%。提供LC-MS  H谱 C谱  告知货期和价格

4-(5-Amino-3-oxo-4-phenylmethanesulfonyloxy-2,3-dihydro-furan-2-yl)-benzoic acid methyl ester

C19H17NO7S

Exact Mass: 403.07

Mol. Wt.: 403.41

m/e: 403.07 (100.0%), 404.08 (21.7%), 405.07 (4.5%), 405.08 (3.8%), 404.07 (1.2%)

C, 56.57; H, 4.25; N, 3.47; O, 27.76; S, 7.95