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m-Cresol Purple

CAS: 2303-01-7 | C21H18O5S | 382.43 g/mol

$105.92 - $370.71

Chemical Identifiers

CAS 2303-01-7
Molecular Formula C21H18O5S
Molecular Weight (g/mol) 382.43
MDL Number MFCD00005871
InChI Key OLQIKGSZDTXODA-UHFFFAOYSA-N
Synonym m-Cresolsulfonephthalein
PubChem CID 73030
IUPAC Name 4-[3-(4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methylphenol
SMILES CC1=C(C=CC(=C1)O)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=C(C=C(C=C4)O)C
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Products 2
Catalog Number Mfr. No. Quantity Price Quantity  
Catalog Number Mfr. No. Quantity Price Quantity  
AAB2433806
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Thermo Scientific Chemicals
B2433806
5 g
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AAB2433814
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Thermo Scientific Chemicals
B2433814
25 g
Each for $370.71
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Description

Description

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.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

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.
Specifications

Chemical Identifiers

2303-01-7
382.43
OLQIKGSZDTXODA-UHFFFAOYSA-N
73030
CC1=C(C=CC(=C1)O)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=C(C=C(C=C4)O)C
C21H18O5S
MFCD00005871
m-Cresolsulfonephthalein
4-[3-(4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methylphenol

Specifications

2303-01-7
MFCD00005871
14,2577
Soluble in water and sodium hydroxide solution. Slightly soluble in alcohol.
CC1=C(C=CC(=C1)O)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=C(C=C(C=C4)O)C
382.43
382.44
m-Cresol Purple
C21H18O5S
350314
m-Cresolsulfonephthalein
OLQIKGSZDTXODA-UHFFFAOYSA-N
4-[3-(4-hydroxy-2-methylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3-methylphenol
73030
5 g
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Safety and Handling

Safety and Handling

EINECSNumber : 218-960-6

TSCA : Yes

Recommended Storage : Ambient temperatures

SDS
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RUO – Research Use Only