822. Asaprol

Nomenclature

CAS number: 516-18-7
2-Hydroxy-1-naphthalenesulfonic acid calcium salt (2:1); calcium 2-hydroxy-1-naphthalenesulfonate; calcium β-naphthol-α-monosulfonate; calcium 2-naphthol-1-sulfonate; 2-naphthol-1-sulfonic acid calcium salt; Abrastol; Calcinaphthol.
C20H14CaO8S2; mol wt 486.53.
C 49.37%, H 2.90%, Ca 8.24%, O 26.31%, S 13.18%.

Description and references

Prepn: Hagers Handb. Pharm. Praxis Band 2, 204 (Berlin, 1930).

Chemical structure

Derivative

Trihydrate.

Properties

Reddish-white, odorless powder. Dec at about 50°. One gram dissolves in 1.5 ml water, 3 ml alc.

Use

Has been used instead of gypsum to plaster wines.