| 62893-20-3 | Cefoperazone sodium | C25H27N9O8S2. Na |
| 62893-19-0 | Cefoperazone | C25H27N9O8S2 |
| 62893-24-7 | (2R)-2-[(4-Ethyl-2,3-dioxopiperazinyl)carbonylamino]-2-(4-hydroxyphenyl)acetic acid | C15H17N3O6 |
| 62893-17-8 | 3(2H)-Pyridazinone,6-[3-[3-[(1,1-dimethylethyl)amino]-2-hydroxypropoxy]-4-methylphenyl]-,hydrazone | C18H27N5O2 |