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产品基本信息 |
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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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