![Phenol Red sodium salt ACS reagent, Dye content 90 %](/deepweb/assets/sigmaaldrich/product/structures/269/966/a807b2c1-44f4-4c2e-ae02-2f2f62edb1d8/640/a807b2c1-44f4-4c2e-ae02-2f2f62edb1d8.png)
Phenol red sodium salt
![Phenol Red sodium salt ACS reagent, Dye content 90 %](/deepweb/assets/sigmaaldrich/product/structures/269/966/a807b2c1-44f4-4c2e-ae02-2f2f62edb1d8/640/a807b2c1-44f4-4c2e-ae02-2f2f62edb1d8.png)
Synonym(s):
Phenol red sodium salt, Phenolsulfonephthalein sodium salt
Empirical Formula (Hill Notation):
C19H13NaO5S
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