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Medchemexpress LLC M-methyl red | 20691-84-3 | MFCD00059641 | 98.0% | 269.30 g/mol | C15H15N3O2 | 5 G
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Supplier:  Medchemexpress LLC HYW1301285G

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m-Methyl red is an azo dye and pH-sensitive acid-base indicator supplied as a solid for laboratory and analytical applications, including titration endpoint detection and staining in research settings.

  • Indicator: pH transition around 4.4-6.2 (pKa ≈5.1)
  • Useful for visual titration endpoint detection
  • Chemical formula C15H15N3O2 and molecular weight 269.30 g/mol
  • Provided as a solid suitable for staining and analytical uses
  • CAS number 20691-84-3 for precise chemical identification

Catalog No. 50-002-82622


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