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  3. 4-(4-Nitrophenylazo)resorcinol

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

目录号: HY-D0228
产品使用指南

4-(4-Nitrophenylazo)resorcinol 是一种偶氮类紫色染料,在实验上用作 pH 指示剂,在 pH 值低于 11 时呈黄色,在 pH 值高于 13 时呈紫色。在微碱性或碱性环境中,在存在镁盐的情况下,它也会变成深蓝色。偶氮紫也可用于测试铵离子的存在。氯化铵或氢氧化铵溶液的颜色将根据所用偶氮紫的浓度而变化。

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4-(4-Nitrophenylazo)resorcinol Chemical Structure

4-(4-Nitrophenylazo)resorcinol Chemical Structure

CAS No. : 74-39-5

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  • 生物活性

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生物活性

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.

分子量

259.22

Formula

C12H9N3O4

CAS 号
中文名称

偶氮紫; 镁试剂Ⅰ

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

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

纯度 & 产品资料
参考文献
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The molarity calculator equation

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

质量   浓度   体积   分子量 *
= × ×

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start) × 体积 (start) = 浓度 (final) × 体积 (final)
× = ×
C1   V1   C2   V2
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产品名称:
4-(4-Nitrophenylazo)resorcinol
目录号:
HY-D0228
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