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甲基紫2B

此条目缺少或没有列出参考或来源,或者有未能查证的内容。 (2015年4月4日)维基百科所有的内容都应该可供查证,化学类条目亦需严谨。请协助添加来自可靠来源的引用以改善这篇化学类条目无法查证的内容可能被提出异议而移除。
甲基紫2B
IUPAC名
Methyl violet 2B
识别
CAS号 8004-87-3  checkY
PubChem 196986
ChemSpider 170606
SMILES
 
  • [Cl-].CN(C)c1ccc(cc1)C(=C2C=CC(=[NH2+])
    C=C2)c3ccc(cc3)N(C)C
性质
化学式 C24H28ClN3
摩尔质量 393.958 g/mol(6B) g·mol⁻¹
熔点 137 ℃ (279 ℉)
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

甲基紫2B是一种有机化合物,化学式为C23H26ClN3

制备方法

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常见用途

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酸碱指示剂

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Methyl violet 2B酸碱指示剂
低于pH 0.0 时 高于pH 1.6 时
0.0 1.6

甲基紫本身为碱性,pH变色范围为:

  • 0.13~0.5:黄至绿
  • 1.0~1.5:绿至蓝
  • 2.0~3.0:蓝至紫

一般配制为0.1%的水溶液作测试。


参见

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甲基紫2B
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