940. Badische Acid

Nomenclature

CAS number: 86-60-2
7-Amino-1-naphthalenesulfonic acid; 2-naphthylamine-8-sulfonic acid.
C10H9NO3S; mol wt 223.25.
C 53.80%, H 4.06%, N 6.27%, O 21.50%, S 14.36%.

Description and references

Prepd by sulfonation of 2-naphthylamine: Green, Vakil, J. Chem. Soc. 113, 35 (1918); Hennion, Schmidle, J. Am. Chem. Soc. 65, 2468 (1943).

Chemical structure

Properties

Needles or prisms. Sol in 1680 parts water, in alkalies; slightly sol in alc.