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Hot New Products Thymolphthalein CAS 125-20-2 for Acid-Base Indicators


  • CAS: 125-20-2
  • Molecular formula: C28H30O4
  • Molecular weight: 430.54
  • EINECS number: 204-729-7
  • Synonym: 3,3-bis(4-hydroxy-2-methyl-5-(1-methylethyl)phenyl)-1(3H)-Isobenzofuranone; 3,3-bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-1(3h)-isobenzofuranon; Thymolphthalein,foranalysisACS;Thymolphthalein,indicator,pure; THYMOLPHTHALEINREAGENT(ACS); THYMOLPHTHALEINSOLUTION
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    Well-run tools, skilled gross sales team, and improved after-sales companies; We’re also a unified huge family members, absolutely everyone stick to the organization benefit “unification, devotion, tolerance” for Hot New Products Thymolphthalein CAS 125-20-2 for Acid-Base Indicators, To significantly increase our service quality, our corporation imports a large number of overseas advanced devices. Welcome clientele from home and overseas to connect with and inquire!
    Well-run tools, skilled gross sales team, and improved after-sales companies; We’re also a unified huge family members, absolutely everyone stick to the organization benefit “unification, devotion, tolerance” for , By integrating manufacturing with foreign trade sectors, we can offer total customer solutions by guaranteeing the delivery of right items to the right place at the right time, which is supported by our abundant experiences, powerful production capability, consistent quality, diversified product portfolios and the control of the industry trend as well as our mature before and after sales services. We’d like to share our ideas with you and welcome your comments and questions.

    Thymolphthalein‘s scientific name is “3,3-bis(4-hydroxy-5-isopropyl-2-methylphenyl)-phthalide”, which is an organic reagent. The chemical formula is C28H30O4, and the molecular weight is 430.54. It is a white crystalline powder. It is easily soluble in ether, acetone, sulfuric acid and alkaline solutions, and insoluble in water. It is often used as an acid-base indicator, and its pH color change range is 9.4-10.6, and the color changes from colorless to blue. When used, it is often prepared into a 0.1% 90% ethanol solution. It is also often prepared with other indicators to form a gentle combined indicator to make its color change range narrower and the observation clearer.

    ITEM

    STANDARD

    RESULT

    Identification

    White to off-white powder

    Complies

    1H-NMR

    Identical spectrum with reference

    Pass

    HPLC purity

    ≥98%

    99.6%

    Loss on drying

    1%max

    0.24%

    Thymolphthalein is often used as an acid-base indicator, with a pH color change range of 9.4 to 10.6, and a color change from colorless to blue. When used, it is often prepared as a 0.1% 90% ethanol solution, and is often mixed with other indicators to form a mixed indicator to make its color change range narrower and clearer to observe. For example, an indicator made by mixing a 0.1% ethanol solution of this reagent with a 0.1% ethanol solution of phenolphthalein is colorless in an acidic solution, purple in an alkaline solution, and rose at pH 9.9 (color change point), which is very easy to observe.

    Products are packaged in bag,25kg/drum

    Well-run tools, skilled gross sales team, and improved after-sales companies; We’re also a unified huge family members, absolutely everyone stick to the organization benefit “unification, devotion, tolerance” for Hot New Products Thymolphthalein CAS 125-20-2 for Acid-Base Indicators, To significantly increase our service quality, our corporation imports a large number of overseas advanced devices. Welcome clientele from home and overseas to connect with and inquire!
    Hot New Products Thymolphthalein and CAS 125-20-2, By integrating manufacturing with foreign trade sectors, we can offer total customer solutions by guaranteeing the delivery of right items to the right place at the right time, which is supported by our abundant experiences, powerful production capability, consistent quality, diversified product portfolios and the control of the industry trend as well as our mature before and after sales services. We’d like to share our ideas with you and welcome your comments and questions.


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