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115936 Erythrosine B (C.I. 45430)

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Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaMolar Mass
16423-68-0240-474-8C₂₀H₆I₄Na₂O₅879.84 g/mol


Catalogue NumberPackaging Qty/Pack
1159360025 Glass bottle 25 g
Catalogue Number115936
SynonymsTetraiodofluorescein disodium salt
OverviewErythrosin B (C.I. 45430) is a CERTISTAIN® dry dye for microscopy that is often used as a counterstain, vizualising proteins, connective tissues, fibers and keratin in sample material of human origin. Depending on user requirements and personal preferences, it can be used for the preparation of the commonly used aqueous or alcoholic Erythrosin B staining solutions.
As the dye belongs to the portfolio of Certistain® dyes, it is chemically analyzed according to strict specifications before release (CE marked and IVD product) and a high staining quality, with reliable staining results is guaranteed.
Product Information
CAS number16423-68-0
EC number240-474-8
Hill FormulaC₂₀H₆I₄Na₂O₅
Molar Mass879.84 g/mol
HS Code3204 12 00
Structure formula ImageStructure formula Image
ApplicationCertistain® dry dye used for counterstaining
Biological Information
Physicochemical Information
pH value6 - 7 (10 g/l, H₂O, 20 °C)
Bulk density470 kg/m3
Solubility100 g/l
Materials Information
Toxicological Information
LD 50 oralLD50 Rat 1840 mg/kg
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Statement(s)H302: Harmful if swallowed.
Signal WordWarning
Storage class10 - 13 Other liquids and solids
WGKWGK 2 obviously hazardous to water
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Safety Information
Hazard Symbols Hazard SymbolsHarmful
Categories of dangerharmful
R PhraseR 22
Harmful if swallowed.
Product Usage Statements
Storage and Shipping Information
StorageStore at +5°C to +30°C.
Packaging Information
Transport Information
Supplemental Information
Dye content (gravimetrically)≥ 80 %
- sodium

passes test
- UV/VIS-Spectrumpasses test
Absorption maximum λ max (water)524 - 527 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; water)930 - 1170
TLC-Testpasses test
Loss on drying (110 °C)≤ 10 %
Suitability for microscopypasses test

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IVD/OEM Materials & Reagents > Microscopy > Dyes for Microscopy > Certistain® Dyes
Reagents, Chemicals and Labware > Inorganic Reagents > Safety Products and General Applications > Indicators > Acid Alkali Indicators or pH Indicators
Reagents, Chemicals and Labware > Inorganic Reagents > Safety Products and General Applications > Indicators > Fluorescence Indicators