Substance
ID:367494
Names and Identifiers
IUPAC Traditional name
cresol red
IUPAC name
3,3-bis(4-hydroxy-3-methylphenyl)-3H-2,1λ6-benzoxathiole-1,1-dione
Synonyms
o-CresolsulfonphthaleinCresol red邻甲酚磺酰酞甲酚红
Registration numbers
CAS Number
EC Number
Beilstein Number
MDL Number
PubChem SID
Properties
Product Information
Empirical Formula (Hill Notation)
C21H18O5S
Grade
indicator grade
Useful pH Range
1.8 - 2.0, orange to yellow (acid)
7.0 - 8.8, yellow to violet (alkaline)
Compostion
Dye content, 95%
pH Range
7.2 - 8.8, yellow to red
Safety Information
GHS Signal Word
Warning
GHS Pictograms
Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, category 2
Eye irritation, category 2
Skin sensitisation, category 1
Specific Target Organ Toxicity – Single exposure, category 3
European Hazard Symbols
Irritant (Xi)MSDS Link
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
GHS Precautionary statements
P261-P305+P351+P338
GHS Hazard statements
H315-H319-H335
German water hazard class
3
Safety Statements
26-36
Risk Statements
36/37/38
Physical Property
Absorption Wavelength
λmax 570 nm
λmax 367 nm (2nd)
Molecule Details
Packaging
5, 25 g in glass bottle
Application
Cresol Red is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) electrophoresis. In agarose, Cresol Red runs with an apparent molecular size of approx. 125 bp DNA. Cresol Red does not inhibit Taq polymerase. Recently Cresol Red has been used as a pH sensitive indicator dye in nanoengineered optical urea biosensors films and hetero-core structured fiber optic pH sensor.
5, 25 g in glass bottle
Application
Cresol Red is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) electrophoresis. In agarose, Cresol Red runs with an apparent molecular size of approx. 125 bp DNA. Cresol Red does not inhibit Taq polymerase. Recently Cresol Red has been used as a pH sensitive indicator dye in nanoengineered optical urea biosensors films and hetero-core structured fiber optic pH sensor.
Molecular Spectra
No Data Available
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References
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