Name: Rhodamine B

Other names: Rhodamine 610; Rose Red B; Ruixiang Red B; Rose Extract B; Rhodamine B

Chemical formula: C28H31ClN2O3

Molecular weight: 479.01

CAS Registry Number: 81-88-9

EINECS accession number: 201-383-9

Melting point (ºC):): 210

Water solubility: easily soluble in water and ethanol, slightly soluble in acetone, chloroform, hydrochloric acid and sodium hydroxide solution.

External view: green crystal or red-purple powder.

Application: used in the cosmetics industry

Security description: S26 S39

Hazard symbol: R22 R41

Usage description

Photometric determination of gold, gallium, mercury, antimony (V), thallium (III), fluorescence determination of manganese, cobalt, etc., colorimetric determination of cadmium; redox indicator for titration of tin, antimony, niobium, tantalum precipitation agent, biological staining Agent series laser dyes.

In the cosmetics industry, it can be used for coloring products such as bath lotion, shampoo, cold water, etc., but not for eye, oral and lip cosmetics.