COA Center



ERYTHROSINE B For Microscopy

C.I.No.45430 It is used as a food colouring, in printing inks, as a biological stain, a dental plaque disclosing agent and a radiopaque medium.
Red No. 3, Solvent Red 140, Acid Red 51, FD&C #3 C.I. Food Red 14; 3',6'-Dihydroxy-2',4',5',7'-tetraiodospiro[isobenzofuran-1(3H0,9'-[9H]xanthen]-3-one disodium salt


25 g (00025)

500 g (00500)

100 g (00100)

1PB1200060 1PB1201250 1PB1200200
Article No. 03700 Grade For Microscopy
Purity 80% CAS No. 16423-68-0
Molecular Formula C20H6I4Na2O5 Molecular Weight 879.84
H.S. Code 3204.9000 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour Dark red
Melting point/ Freezing point [°C] 303 °C Solubility in water [% weight] Soluble in water


Appearance Dark red coloured powder Dye content Min 80%
Absorption maxima 524 - 527 nm Specific Absorptivity A 1%/1cm (λmax; 0.005 g/l; water) 930 - 1170
Loss on drying (at 110°C) Max 10.0%

Safety Information and Hazard Symbols

Exclamation Mark
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H302-H413
Precaution Statement: P273 - P301 + P312 + P330
Revision Date: 12-Jul-2021

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