Search Thermo Fisher Scientific
Element Search
Structure SearchThermo Scientific™
m-Cresol Purple, Thermo Scientific Chemicals
Catalog number: B24338.14
25 g, Each
Thermo Scientific™
m-Cresol Purple, Thermo Scientific Chemicals
Catalog number: B24338.14
25 g, Each
Quantity
Catalog number: B24338.14
also known as B24338-14
Price (EUR)
132,30 Online price
147,00
Each
Quantity
-
Chemical Identifiers
CAS
2303-01-7
IUPAC Name
3,3-bis(4-hydroxy-2-methylphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione
Molecular Formula
C21H18O5S
InChI Key
OLQIKGSZDTXODA-UHFFFAOYSA-N
SMILES
CC1=CC(O)=CC=C1C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1C
Specifications
Specification SheetForm
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
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.
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.
RUO – Research Use Only
Figures
Documents & Downloads
Certificates
Search by lot number or partial lot number
Frequently asked questions (FAQs)
Citations & References
Search citations by name, author, journal title or abstract text