4-Hydroxy-7-methylamino-2-naphthalenesul, fonicacid, 10 g

4-Hydroxy-7-methylamino-2-naphthalenesul, fonicacid, Molar mass (M) 253,28 g/mol, Storage temp. +2 to +8 °C, CAS No. 22346-43-6, Empirical formula C₁₁H₁₁NO₄S