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Eosin 0.5 %, in ethanol 70 %

Eosin 0.5% in ethanol 70% is a solution containing the synthetic dye eosin (tetrabromofluorescein, molecular formula: C_20H_8Br_4O_5) in a 70% alcohol solution with a concentration of 0.5%. This eosin solution is mainly used in histology and cytology to stain cell structures and the extracellular matrix. Eosin has a high affinity for basic structures such as proteins and typically stains them pink or red.

The use of a 70% alcohol solution has implications for staining kinetics and quality. Compared to other concentrations of alcohol in the eosin solution, a 70% solution allows a good balance between staining kinetics and color intensity. It is not as concentrated as a 90% alcohol solution, which results in slower staining, but also less risk of overstaining. At the same time, it is more concentrated than a 50% alcohol solution, which allows for faster staining and better penetration of the dye into the tissue.

Eosin 0.5% in ethanol 70% is thus a versatile and balanced option for histological and cytological applications. The moderate concentration of alcohol and eosin achieves good staining kinetics, maintains color intensity and sharpness of staining, and allows sufficient differentiation of cellular and extracellular structures.

Article no.: 13044

Staining of tissue samples

  •   Container size and order number Net price Amount
    Eosin 0.5 %, in ethanol 70 % - 250 ml
    Order number: 13044.00250
    18,21 €
    Eosin 0.5 %, in ethanol 70 % - 500 ml
    Order number: 13044.00500
    26,77 €
    Eosin 0.5 %, in ethanol 70 % - 1.000 ml
    Order number: 13044.01000
    33,51 €
    Eosin 0.5 %, in ethanol 70 % - 2.500 ml
    Order number: 13044.02500
    62,10 €

Important Information

UN-Nummer: 1170

Warning labels:

Lagerung: 15 … 25 °C

Haltbarkeit: 24 Monate

safety data sheet


product information

Relevant Incredients:
• Ethyl alcohol
• Eosin Y (C.I.: 45380)
• Acetic acid 99%

instruction manual

Technical informations

specifications

Hazard and safety instructions

Signal Word 1: Gefahr
Signal Word 2: flamme, exclam, ,
Warning labels: