COA Center



EOSIN BLUE For Microscopy

C.I.No.45400 It is used for plasma staining, vital staining & staining Negri bodies in nerve tissue preparation.
4',5'-Dibromo-2',7'-dinitrofluorescein disodium salt, Acid Red 91, Eosin Scarlet, Eosin bluish, Saffrosine


25 g (00025)

100 g (00100)

1PB1200060 1PB1200100
Article No. 03640 Grade For Microscopy
Purity 85% dye content CAS No. 548-24-3
Molecular Formula C20H6Br2N2Na2O9 Molecular Weight 624.09
H.S. Code 3204.9000 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour Black powder


Appearance Brown to dark green powder Dye content (by spectrophotometry) Min 85%
Absorptivity (A 1%/1cm; at λmax; in water) Min 800 Solubility (0.1% in water) Clear solution
Absorption maxima in water 517 - 520 nm Loss on drying (at 110°C) Max 8%
Suitability (for microscopy) Passes test

Safety Information and Hazard Symbols

Safety Statement: 22-24/25
Revision Date: 09-Mar-2023

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