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Alfa Aesar™ m-Cresol Purple

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Quantity:
5g
25g
2303-01-7
C21H18O5S
382.43
MFCD00005871
OLQIKGSZDTXODA-UHFFFAOYSA-N
m-Cresolsulfonephthalein
73030
4-[3-(4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methylphenol
CC1=C(C=CC(=C1)O)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=C(C=C(C=C4)O)C
2303-01-7
C21H18O5S
382.43
MFCD00005871
OLQIKGSZDTXODA-UHFFFAOYSA-N
m-Cresolsulfonephthalein
73030
4-[3-(4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methylphenol
CC1=C(C=CC(=C1)O)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=C(C=C(C=C4)O)C
Applications
m-Cresol Purple acts as a pH indicator dye. It plays an important role in spectrophotometric pH measurements. It operates in the pH ranges 1.2 - 2.8 (red to yellow) and 7.4 - 9.0 (yellow to violet). Further, it is employed to stain epithelial cells and proteins.

Solubility
Soluble in water and sodium hydroxide solution. Slightly soluble in alcohol.

Notes
Transition interval (acid): pH 1.2 (red) to pH 2.8 (yellow); (alkaline) pH 7.4 (yellow) to pH 9.0 (purple)Incompatible with strong oxidizing agents.
Beilstein 350314
Merck Index 14,2577
Solubility Information Soluble in water and sodium hydroxide solution. Slightly soluble in alcohol.
Formula Weight 382.44
Quantity 5g
Chemical Name or Material m-Cresol Purple

EINECSNumber : 218-960-6

TSCA : Yes

Recommended Storage : Ambient temperatures