Cresol red

REF : 114472-5G
Marca : Sigma-Aldrich
Descrição :Cresol red indicator grade, Dye content 95 %
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CAS :
Descrição detalhada : Cresol Red, also known as o-cresol red, belongs to the phthalein and sulphonphthalein group of dyes. Cresol red changes color from orange to yellow at pH between 0.2-1.8 and yellow to violet at pH between 7.0-8.8. In alkaline solutions, cresol red is present as a hydrophilic dianion. The dianion is small and is violet in color, possessing a larger conjugated system than the yellow hydroxyquinone.
Sinónimos : o-Cresolsulfonphthalein
Fórmula molecula r: C21H18O5S
Armazenamento : room temp
Embalagem : 1X5G