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  3. Erythrosine B free acid

Erythrosine B free acid  (Synonyms: Tetraiodofluorescein)

Cat. No.: HY-107864
Handling Instructions

Erythrosine B free acid is a visibly red dye with colorimetric and fluorescent properties that serves as an important dye for many Gram-positive and -negative bacteria. Erythrosine B free acid can be used for live/dead determination in both colorimetric and fluorescence-based assays for low, medium and high-throughput experimentation.

For research use only. We do not sell to patients.

Erythrosine B free acid Chemical Structure

Erythrosine B free acid Chemical Structure

CAS No. : 15905-32-5

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Description

Erythrosine B free acid is a visibly red dye with colorimetric and fluorescent properties that serves as an important dye for many Gram-positive and -negative bacteria. Erythrosine B free acid can be used for live/dead determination in both colorimetric and fluorescence-based assays for low, medium and high-throughput experimentation[1].

Molecular Weight

835.89

Formula

C20H8I4O5

CAS No.
SMILES

O=C1OC2(C3=CC(I)=C(C(I)=C3OC4=C(C(O)=C(C=C42)I)I)O)C5=C1C=CC=C5

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Purity & Documentation
References
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  • Molarity Calculator

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The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Erythrosine B free acid
Cat. No.:
HY-107864
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