Pyrazines
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Medchemexpress LLC Methyl red | 493-52-7 | MFCD00002425 | 98.7% | 269.30 g/mol | C15H15N3O2 | 100g
Methyl red is a pH-sensitive acid-base indicator and colorimetric reagent with a pKa of 5 1 Methyl red 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 is widely used in acid-base titration in chemical analysis and buffer pH monitoring in biochemistry[1][2]
