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Cresol Red sodium salt
Transition interval (acid): pH 0.2 (red) to pH 1.8 (yellow); (alkaline) pH 7.2 (yellow) to pH 8.8 (red) | CAS: 62625-29-0 | C21H17NaO5S
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化學識別
CAS62625-29-0
IUPAC Namesodium 4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-3H-2,1λ⁶-benzoxathiol-3-yl]-2-methylbenzen-1-olate
Molecular FormulaC21H17NaO5S
InChI KeyFMKJVYROEYMYFV-UHFFFAOYNA-M
SMILES[Na+].CC1=CC(=CC=C1O)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C([O-])C(C)=C1
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規格
規格表
規格表Appearance (Color)Orange to red to dark red to brown to dark brown
FormPowder or crystalline powder and/or crystals
Color ChangeOrange @ pH <2.0 to yellow @ pH >3.0
Color ChangeYellow @ pH <7.2 to red/purple @ pH >8.8
Loss on Drying≤5.0% (110°C/1 hour)
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Cresol Red sodium salt acts as a constituent of polymerase chain reaction reagent systems. It is useful as a pH indicator with color changes with pH 0.2 - pH 1.8 and pH 7.1 - 8.8. Further, it plays an important role in molecular biology reactions in place of other loading dyes.
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
Cresol Red sodium salt acts as a constituent of polymerase chain reaction reagent systems. It is useful as a pH indicator with color changes with pH 0.2 - pH 1.8 and pH 7.1 - 8.8. Further, it plays an important role in molecular biology reactions in place of other loading dyes.
Solubility
Soluble in water, dilute alcohols, acids, alkalies and ethanol.
Notes
Transition interval (acid): pH 0.2 (red) to pH 1.8 (yellow); (alkaline) pH 7.2 (yellow) to pH 8.8 (red)Incompatible with strong oxidizing agents.
Cresol Red sodium salt acts as a constituent of polymerase chain reaction reagent systems. It is useful as a pH indicator with color changes with pH 0.2 - pH 1.8 and pH 7.1 - 8.8. Further, it plays an important role in molecular biology reactions in place of other loading dyes.
Solubility
Soluble in water, dilute alcohols, acids, alkalies and ethanol.
Notes
Transition interval (acid): pH 0.2 (red) to pH 1.8 (yellow); (alkaline) pH 7.2 (yellow) to pH 8.8 (red)Incompatible with strong oxidizing agents.
RUO – Research Use Only
General References:
- Heck, M. V.; Azizov, M.; Stehning, T.; Walter, M.; Kedersha, N.; Auburger, G. Dysregulated expression of lipid storage and membrane dynamics factors in Tia1 knockout mouse nervous tissue. Neurogenetics 2014, 15 (2), 135-144.
- Mukherjee, S.; Hill, M. R.; Sumerlin, B. S. Self-healing hydrogels containing reversible oxime crosslinks. Soft matter 2015, 11 (30), 6152-6161.