Eosin B / Blue eosin / dibromodinitrofluorescein disodium / acid red 91

English name：Eosin B；Eosin bluish；Caesar red；4′, 5′-Dibromo-2′, 7′-dinitrofluorescein disodium salt；Eosin scarlet；Saffrosine；Hydroxydibromodinitro-o-carboxy-phenylfluorone sodium；Nophalin G；Acid red 91 

Other names:  Blue dawn; Dibromodinitrofluorescein disodium; 4', 5'- dibromo-3', 6'- dihydroxy-2', 7'- dinitro spiro (isobenzofuran-1 (3H), 9'- (9h) zhanton) - 3-one disodium salt; Acid red 91

CAS No.: 548-24-3

C20H6Br2N2O9Na2=624.06

Grade: BS

Spectral effective content: ≥ 85.0%

Biological staining test: qualified

Water dissolution test: acceptable

Drying loss: ≤ 5.0%

Physicochemical properties: red powder. It is easily soluble in water, the solution is green fluorescent, and soluble in ethanol. Maximum absorption wavelength 514 (395) NM

Purpose: biochemical research. Biological stain; Histology was used for staining epithelial cells, muscle fibers and nuclei; Adsorption and fluorescence indicator

Saving: RT