m-Cresol purple, pH indicator dye (ab146318)
Key features and details
- pH indicator dye.
- CAS Number: 2303-01-7
- Form / State: Solid
- Source: Synthetic
Overview
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Product name
m-Cresol purple, pH indicator dye -
Description
pH indicator dye. -
Alternative names
- 2',2''-Dimethylphenolsulfonphthalein
- 3,3-Bis(4-hydroxy-2-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide
- 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(3-methylphenol)
see all -
Biological description
pH indicator dye used primarily in spectrophotometric pH measurements. Acidic and hydrophobic. The useful pH ranges are 1.2 - 2.8 (red to yellow) and 7.4 - 9.0 (yellow to violet).
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CAS Number
2303-01-7 -
Chemical structure
Properties
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Chemical name
4,4'-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[3-methylphenol] -
Molecular weight
382.43 -
Molecular formula
C21H18O5S -
Storage instructions
Store at Room Temperature. The product can be stored for up to 12 months. -
Handling
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
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Source
Synthetic