Rhodamine B

Product introduction:

Alkaline rose essence is a synthetic red alkaline fluorescent dye, commonly known as flower pink. As a fluorescent reagent, the dye has been widely used in colored glass, mining, steel and other fields. It is a common basic dye in industry.

Alias: C.I. 45170; C.I. Basic Violet 10; C.I. Food Red 15; C.I. No. 45170; Tetraethylrhodamine; 9-(2-carboxyphenyl)-3,6-bis(diethylamino)xanthylium chloride; N-[9-(2-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]-N-ethylethanaminium chloride; Basic rose red.

CAS：81-88-9

Molecular formula：C₂₈H₃₁ClN₂O₃

Molecular weight：479.01

Structure：

Character:

Bright green glittering crystalline powder, soluble in water and alcohol, easily soluble in fibrin and slightly soluble in acetone. In case of concentrated sulfuric acid, it is yellow brown and has strong green fluorescence. After dilution, it is bright red and turns to blue red and orange. The aqueous solution was heated with sodium hydroxide and precipitated in rose red villous shape.

Purpose:

It is mainly used for batik paper, printing paper, glossy paper, colored paper, toilet paper, etc. Used for making paints, pictures and other pigments and lakes. It is used for dyeing acrylic fiber, hemp, silk and other fabrics and dyeing straw and leather products. Used for coloring plastics, sanitary incense, matches and pesticides.