| Chemistry name: | 1,8-naphthosultam-2,4-disulfonic acid |
| M Formula: | C10H4(SO3H)2NHSO2 |
| Properties: | |
| White solid. Soluble in water; slightly soluble in alcohol. | |
| Derivation: | |
| Sulfonation of 1-naphthylamine-8-sulfonic acid or 1-naphthylamine-4,8-disulfonic acid. | |
| Use: | |
| Intermediate for Chicago acid. | |