sulfanilic acids การใช้

• "' Metanilic acid "'is an isomer of sulfanilic acid with the sulfonic acid with molecular formula and molecular weight 173.18968 g / mol.
• "' Sulfanilic acid "'( "'4-aminobenzenesulfonic acid "') is an off-white crystalline solid which finds application in quantitative analysis of nitrate and nitrite ions.
• It is formally derived from 1-naphthylamine by replacing the hydrogen atoms on the amino group with methyl groups . " N ", " N "-Dimethyl-1-naphthylamine is used in the nitrate reductase test to form a red precipitate of Prontosil by reacting with a nitrite-sulfanilic acid complex.