CAS 1301254-50-1 Propanoic acid, 2-[[(Z)-[1-(2-amino-4-thiazolyl)-2-oxo-2-[[(5aR,6R)-1,4,5a,6-tetrahydro-1,7-dioxo-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl]amino]ethylidene]amino]oxy]-2-methyl- (HCID 178682897)|化工社