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CAS 1340-02-9

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methyl purple

Description:
Methyl purple, also known as methyl violet 2B, is a synthetic dye and pH indicator commonly used in various applications, including microbiology and histology. It is characterized by its vibrant purple color, which changes depending on the pH of the solution it is in. Methyl purple exhibits a color transition from yellow at acidic pH levels to purple at neutral to alkaline conditions, making it useful for determining the acidity or basicity of a solution. The compound is soluble in water and alcohol, which enhances its utility in laboratory settings. Methyl purple is also known for its stability and relatively low toxicity, although safety precautions should still be observed when handling it. In addition to its role as a pH indicator, methyl purple can be used in staining procedures to visualize cellular structures under a microscope. Its chemical structure includes a quaternary ammonium group, contributing to its dyeing properties and interaction with biological tissues. Overall, methyl purple is a versatile compound with significant applications in scientific research and education.
Formula:C67H62N8Na4O14S3
InChI:InChI=1/C37H36N2O10S3.2C15H15N3O2.4Na/c1-3-38(24-26-7-5-9-33(21-26)50(41,42)43)30-15-11-28(12-16-30)37(35-20-19-32(40)23-36(35)52(47,48)49)29-13-17-31(18-14-29)39(4-2)25-27-8-6-10-34(22-27)51(44,45)46;2*1-18(2)12-9-7-11(8-10-12)16-17-14-6-4-3-5-13(14)15(19)20;;;;/h5-23H,3-4,24-25H2,1-2H3,(H3,41,42,43,44,45,46,47,48,49);2*3-10H,1-2H3,(H,19,20);;;;/q;;;4*+1/p-4/b;2*17-16+;;;;/rC37H34N2Na2O10S3.2C15H15N3O2.2Na/c1-3-38(24-26-7-5-9-33(21-26)52(43,44)45)30-15-11-28(12-16-30)37(35-20-19-32(42)23-36(35)54(48,49)51-41)29-13-17-31(18-14-29)39(4-2)25-27-8-6-10-34(22-27)53(46,47)50-40;2*1-18(2)12-9-7-11(8-10-12)16-17-14-6-4-3-5-13(14)15(19)20;;/h5-23H,3-4,24-25H2,1-2H3,(H,43,44,45);2*3-10H,1-2H3,(H,19,20);;/q;;;2*+1/p-2/b;2*17-16+;;
Synonyms:
  • Methyl Purple solution
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