English Name:Nuclear fast red；Calcin red；Kernechtrot；1-Amino-2,4-dihydroxyanthraquinone-3-sulfonic acid sodium salt ；C.I. 60760

Other names: nuclear fast red; Calcium red; Nuclear fast red; Glyoxal bis (o-nitrophenol)

CAS No.: 6409-77-4

C14H8NNaO7S=357.27

Dyeing test: qualified

Water dissolution test: acceptable

Infrared spectrum identification: qualified

Physicochemical Properties: reddish to dark brown powder. It turns pale purple in the presence of sodium hydroxide and brown in sulfuric acid. Soluble in ethanol and water. The maximum absorption wavelength is 518nm. Irritating. It is also mentioned in the literature that this product is neutral red

Purpose: biochemical research. Nuclear staining of connective tissue. Reagent for determination of calcium

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