Molecular formula： C13H12N8O4S3
Usage：Pharmaceutical intermediates,it is used in the production of ceftiazole crude drugs.
Molecular formula：C16H16N2O6S2
Usage：Pharmaceutical intermediates,it is used in the production of ceft-thiophene sodium and cefsidine apis.
Molecular formula： C4H14N3O5P
Usage：Used for synthesizing COP.
