63451-28-5
Chemical Structure
Methyl red hydrochloride
- CAS. Nr.: 63451-28-5
- Formula:C15H16ClN3O2
- Molecular Weight:305.76
IUPAC Name: (E)-2-((4-(dimethylamino)phenyl)diazenyl)benzoic acid hydrochloride
InChIKey: ICTWKXAVJAHRMK-CMBBICFISA-N
SMILES: O=C(C1=C(/N=N/C2=CC=C(N(C)C)C=C2)C=CC=C1)O.Cl
Biological Activity: Methyl red hydrochloride is a pH-sensitive acid-base indicator and colorimetric reagent with a pKa of 5.1. Methyl red hydrochloride achieves visual judgment of the titration endpoint through reversible structural changes of protonation (red, pH < 4.4) and deprotonation (yellow, pH > 6.2). Methyl red hydrochloride is widely used in acid-base titration in chemical analysis and buffer pH monitoring in biochemistry[1][2].
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Methyl red hydrochloride | Methyl red hydrochloride is a pH-sensitive acid-base indicator and colorimetric reagent with a pKa of 5.1. Methyl red hydrochloride achieves visual judgment of the titration endpoint through reversible structural changes of protonation (red, pH < 4.4) and deprotonation (yellow, pH > 6.2). Methyl red hydrochloride is widely used in acid-base titration in chemical analysis and buffer pH monitoring in biochemistry. | |||||||||||||||||||||
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References
- [1]. Ikram M, et al. Biodegradation of Azo Dye Methyl Red by Pseudomonas aeruginosa: Optimization of Process Conditions. Int J Environ Res Public Health. 2022 Aug 12;19(16):9962. [Content Brief]
- [2]. Kasai, et al. Menthol induces surgical anesthesia and rapid movement in fishes. Open Neuroscience Journal 8 (2014): 1-8.
