Structural formula

Common name

Alizarin red S

Suggested name

Alizarin red S

C.I. number

58005

Class

Anthraquinone

Solubility in water

7.7%

Solubility in ethanol

0.15%

Absorption maximum

557

Empirical formula

C₁₄H₇O₇SNa

Formula weight

342.267