[B24338] m-Cresol Purple | Alfa
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Brand: Alfa Aesar
| C21H18O5S | 3,3-bis(4-hydroxy-2-methylphenyl)-2,1λ⁶-benzoxathiole-1,1-dione
Chemical Identifiers
CAS
2303-01-7
Molecular Weight (g/mol)
382.43
Synonym
3,3-bis(4-hydroxy-2-methylphenyl)-2,1λ⁶-benzoxathiole-1,1-dione
SMILES
CC1=CC(O)=CC=C1C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1C
InChI Key
OLQIKGSZDTXODA-UHFFFAOYSA-N
Molecular Formula
C21H18O5S
IUPAC Name
3,3-bis(4-hydroxy-2-methylphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione
Specifications
Form
Powder
Comment
Material sourced in the U.S. and in other countries
Appearance (Color)
Green to dark green
Color Change
pH 7.4 (yellow) to pH 9.0 (purple)
lambda-max (UV-Vis)
574-582 nm
설명
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.
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.
Other References:
Merck Index:14,2577Beilstein:350314
GHS Hazard and Precautionary Statements
Hazard Statements:
Risk & Safety
TSCA:Yes
경고:RUO – Research Use Only
CAS2303-01-7FORMULAC21H18O5SEINECS218-960-6MDLMFCD00005871
| Pakage | 25g, 5g |
|---|---|
| brand | Alfa Aesar |
