遇氫氧化鈉成淺紫色，在硫酸中為棕色溶液。溶于乙醇和水。最大吸收波長518nm。有刺激性。文獻上也有指本品為中性紅(Neutral red)的。Colour Index Number 60760 水中溶解度:1 g/l (25°C)。

結(jié)締組織細胞核染色。測定血清中鈣的試劑。

It turns pale purple when exposed to sodium hydroxide and brown solution in sulfuric acid. Soluble in ethanol and water. The maximum absorption wavelength is 518nm. Irritating. There are also references that this product is Neutral red. Colour Index Number 60760 solubility in water: 1 g/l (25 c).

Nuclear staining of connective tissue. Reagent for determination of calcium in serum.