| 25892-63-1 | 4-Methylumbelliferone sulfate | C10H8 O6 S |
| 25892-68-6 | Cyclopentanecarboxylicacid, 2-[2-(2-cyanoacetyl)hydrazinylidene]-, methyl ester | C10H13 N3 O3 |
| 25892-74-4 | 4-methyl-1-(3-{4-[(oxoammonio)methylidene]pyridin-1(4H)-yl}propyl)pyridinium dibromide | C15H19 N3 O . 2 Br |