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Pyrocatechol Violet
产品基本信息
产品编号:P998890
产品名称:Pyrocatechol Violet
产品CAS:115-41-3
规格含量:10g
产品价格:面议
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产品详细介绍
标准品编号: P998890
名称: Pyrocatechol Violet
别名: Catechol Violet, Pyrocatecholsulfonphthalein; 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[1,2-benzenediol]; 3,3-Bis(3,4-dihydroxyphenyl)-3H-2,1-benzoxathiole 1,1-Dioxide; NSC 8805; PKF; Pyrocatechin Sulfonephthalein; Pyrocatechol Sulfonephthalein; 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis-1,2-benzenediol S,S-Dioxide
CAS号: 115-41-3
分子式: C₁₉H₁₄O₇S
分子量: 386.38
类别: Research Tools;
应用: Pyrocatechol Violet is a complexometric indicator dye. This phthalein dye chelates metals to form blue to blue-violet complexs. It is also a pH indicator with a transition interval from 0 - 8 (red to violet). It is known to be unstable when alkaline. The stability is improved at a neutral pH. When the pH is between 2-7 the color may be yellow. Dyes and metabolites.
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