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How to prepare 3,3'-Dimethylnaphthidine indicator?

Jun 29，2026

3,3'-Dimethylnaphthidine is used as redox indicator. Add 1.0 g 3,3'-Dimethylnaphthidine in 100 mL acetic acid glacial, it transitions from colorless in its reduced state to purplish-red in its oxidized state.

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3,3'-DIMETHYLNAPHTHIDINE

13138-48-2

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How to prepare 3,3'-Dimethylnaphthidine indicator?

3,3'-DIMETHYLNAPHTHIDINE