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Eosin Y (C.I. 45380), 50 g

for microscopy
Mogelijke gevolgen: leiden tot schade aan de gezondheid, irriteren organen, huid of luchtwegen. Leiden in grotere hoeveelheden tot de dood. Veiligheid: zoals hierboven; bij huidirritaties of oogcontact met water of geschikt middel spoelen.
i causes serious eye irritation
P280 P305+P351+P338
i wear protective gloves/protective clothing/eye protection/face protection, IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
Eosine Yellowish
Empirical formula C20H6Br4Na2O5
Molar mass (M) 691,86 g/mol
Melting point (mp) 296 °C
CAS No. [17372-87-1]
EG-Nr. 241-409-6

Eosin Y is a slightly acid fluorescent dye, which stains cytoplasm red. It is soluble in alcohol and ...
Type analysis

33,90 €/VE 

Excl. btw | 50 g Per VE

Bestelnr. 7089.1

In stock
Vrij van verzendingskosten vanaf 125 €
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Vanaf 6 VE 32,20 €/VE
Vanaf 24 VE 30,51 €/VE
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Spore staining acc. to Rakette

Boil the heat fixed smear with malachite green, Art. No. 5895, (5 % solution in water) for 20 sec and allow to act for at least 30 sec. Rinse in running tap water, counterstain with Eosin Y, Art. No. 7089, (2.5 % solution in water) for 1 min, rinse again and dry.

Result: Spores green, other bacteria parts red.

Acc. to Dieter Gerlach: Bot. Mikrotechnik, 2. Auflage, Thieme (1977)

Eosin Y (C.I. 45380) for microscopy

Eosin Y is a slightly acid fluorescent dye, which stains cytoplasm red. It is soluble in alcohol and water (usual concentrations: 0.5 - 2.0 %). Manifold use, e.g. for hematoxylin-eosin (H&E) staining, spore staining etc.

Excitation maximum: 534 nm
Emission maximum: 544 nm

Technische informatie
Absorption max. 510-520 nm  
Staining tote Zellen rot  
Kleuromslag yellow - red  
Transition range pH 0,0 – 3,0  
Eosin Y (C.I. 45380)
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Bestelnr. Verp. Pack. Prijs Hoeveelheid
7089.1 50 g glass 33,90 €
7089.2 100 g glass 57,55 €
7089.3 500 g glass 182,65 €
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Algemene informatie

Indicators and Dyes

Roth offers many indicators and dyes of high purity, which can be used in special applications.


Hier kunt u uw analysecertificaat voor het geselecteerde product zoeken en downloaden. Geef een chargenummer op.
De volgende analysecertificaten werden gevonden:

Type analysis

Maximum absorption510-520 nm
Solubilityin alcohol and water

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