COA Center



EOSIN YELLOW For Microscopy

C.I.No.45380 It can be used to stain cytoplasm, collagen and muscle fibers for examination under the microscope.
Eosin Y


25 g (00025)

100 g (00100)

500 g (00500)

1PB1200060 1PB1200100 1PB1200750
Article No. 03660 Grade For Microscopy
Purity 90% dye content CAS No. 17372-87-1
Molecular Formula C20H6Br4Na2O5 Molecular Weight 691.88
H.S. Code 3204.9000 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour Brownish red
Density [g/cm3] 1.018 g/cm3


Appearance Brownish red fine powder Absorption maxima 515 - 518 nm
Dye content (by spectrophotometry) Min 90% Solubility (0.1% in water) Clear solution
Absorptivity (A 1%/1cm; at λmax; in water) 1200 - 1400 Loss on drying (at 110°C) Max 8%
Copper (Cu) Max 0.005% Iron (Fe) Max 0.005%
Nickel (Ni) Max 0.005% Lead (Pb) Max 0.005%
Suitability (for microscopy) Passes test

Safety Information and Hazard Symbols

Exclamation Mark
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H319
Precaution Statement: P305 + P351 + P338
Revision Date: 01-Apr-2021

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