Thermo Scientific Chemicals

Eosin B, Thermo Scientific Chemicals

Catalog number: A17377.22
100 g, Each
Thermo Scientific Chemicals

Eosin B, Thermo Scientific Chemicals

Catalog number: A17377.22
100 g, Each
Quantity
Catalog number: A17377.22
also known as A17377-22
Price (USD)
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Chemical Identifiers

CAS
548-24-3
IUPAC Name
disodium 2-(4,5-dibromo-2,7-dinitro-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate
Molecular Formula
C20H6Br2N2Na2O9
InChI Key
GYYTYUGGVBYJHE-UHFFFAOYSA-L
SMILES
[Na+].[Na+].[O-]C(=O)C1=CC=CC=C1C1=C2C=C(C(=O)C(Br)=C2OC2=C(Br)C([O-])=C(C=C12)[N+]([O-])=O)[N+]([O-])=O
Loss on Drying
≤10.0% (105?C/constant wt)
Specific Absorbance (E 1%/1cm)
>700 (@ 519 in water)
Form
Powder
Appearance (Color)
Dark green to red/brown or dark brown
lambda-max (UV-Vis)
515-525nm ( in water)

Description

Eosin B sodium salt is a cell and tissue stain. Eosin B sodium salt is used as a counter stain for collagen, as a tissue stain for cell granules, nuclei, and microorganisms when coupled with Azure A (sc-203729), and as a stain for cell differentiation of the anterior pituitary.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Eosin B sodium salt is a cell and tissue stain. Eosin B sodium salt is used as a counter stain for collagen, as a tissue stain for cell granules, nuclei, and microorganisms when coupled with Azure A (sc-203729), and as a stain for cell differentiation of the anterior pituitary.

Solubility
Soluble in water (390 g/L at 20°C), and ethanol.

Notes
Store at room temperature. Keep away from strong oxidizing agents.
RUO – Research Use Only

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