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Sigma Aldrich Fine Chemicals Biosciences Bromothymol Blue, 76-59-5, MFCD00005872, 5 g

Supplier:  Sigma Aldrich Fine Chemicals Biosciences 1144135G

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Empirical Formula (Hill Notation): C27H28Br2O5S, Molecular Weight: 624.38, ACS reagent, Dye content 95 %, Synonym: 3′,3″-Dibromothymolsulfonphthalein. Bromothymol Blue (BTB) is a pH indicator (pKa approx. 7.1) that is used as a biological slide vital stain to define cell walls or nuclei under the microscope. BTB is also a component of several bacterial growth and detection substrates such as cystine lactose electrolyte deficient (CLED/BROLACIN); polymyxin pyruvate egg yolk mannitol bromothymol blue (PEMBA) and MacConkey agar.

Catalog No. NC0705954


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