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  4. 4-(4-Nitrophenylazo)resorcinol

4-(4-Nitrophenylazo)resorcinol  (Synonyms: Azo Violet; Magneson I)

Cat. No.: HY-D0228
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4-(4-Nitrophenylazo)resorcinol is an azo purple dye used experimentally as a pH indicator, showing yellow when the pH value is lower than 11 and purple when the pH value is higher than 13. In slightly alkaline or alkaline environments, it also turns dark blue in the presence of magnesium salts. Azo Violet can also be used to test for the presence of ammonium ions. The color of the ammonium chloride or ammonium hydroxide solution will change depending on the concentration of azo violet used.

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

4-(4-Nitrophenylazo)resorcinol Chemical Structure

4-(4-Nitrophenylazo)resorcinol Chemical Structure

CAS No. : 74-39-5

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4-(4-Nitrophenylazo)resorcinol Related Antibodies

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Description

4-(4-Nitrophenylazo)resorcinol is an azo purple dye used experimentally as a pH indicator, showing yellow when the pH value is lower than 11 and purple when the pH value is higher than 13. In slightly alkaline or alkaline environments, it also turns dark blue in the presence of magnesium salts. Azo Violet can also be used to test for the presence of ammonium ions. The color of the ammonium chloride or ammonium hydroxide solution will change depending on the concentration of azo violet used.

Molecular Weight

259.22

Formula

C12H9N3O4
CAS No.
SMILES

OC1=CC=C(C(O)=C1)/N=N/C2=CC=C(C=C2)[N+]([O-])=O
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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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4-(4-Nitrophenylazo)resorcinol Related Classifications

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The molarity calculator equation

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

Mass   Concentration   Volume   Molecular Weight *
= × ×

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
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  • 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.

Keywords:

4-(4-Nitrophenylazo)resorcinol74-39-5Azo Violet Magneson IFluorescent DyeInhibitorinhibitorinhibit

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