Description / Application
Neutral red is a hydrochloride obtained by combining the free base of neutral red with one equivalent of hydrochloric acid. Neutral red acts as a pH indicator, changing from red to yellow between pH 6.8 and 8.0. It has a role as a dye, an acid-base indicator and a two-colour indicator. It contains a neutral red(1+).
Identities
| Alternative Name | 3-Amino-7-dimethylamino-2-methylphenazine hydrochloride, Basic Red 5; C.I. 50040 |
|---|---|
| Molecular Formula | C15H17ClN4 |
| Molecular Weight | 288.77 |
| MFCD | MFCD00012651 |
Safety
| Pictograms |
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|---|---|
| Signal Word | Warning |
| Hazard Statements | H315;H319;H335 |
| Precautionary Statements | P261;P264;P271;P280;P302+P352;P304+P340;P305+P351+P338;P312;P321;P332+P313;P337+P313;P362;P403+P233;P405;P501 |