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Cresol red

CAT: 0013-GTR19341403-02Size: 25 mgDry Ice: NoHazardous: No
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CAT#:0013-GTR19341403-02Size:25 mg
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Description
Cresol Red is a pH indicator dye with two distinct transition ranges: orange to yellow at pH 1.8-2.0 and yellow to purple at pH 7.0-8.8. It is commonly used in molecular biology for gel electrophoresis and in vitro assays to monitor pH changes.
CAS Number
1733-12-6
Molecular Weight
382.43
Storage Conditions
-20°C
Notes
For research use only.

Chemical Information

Cresol Red

Cresol red is a member of the class of 2,1-benzoxathioles that is 2,1-benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 4-hydroxy-5-methylphenyl groups. It has a role as a dye, an acid-base indicator and a two-colour indicator. It is a polyphenol, a 2,1-benzoxathiole, a sultone and an arenesulfonate ester.

CAS Number1733-12-6
PubChem CID73013
IUPAC Name4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-2-methylphenol
Molecular FormulaC21H18O5S
Molecular Weight382.4
XLogP3.7
Topological Polar Surface Area92.2
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Heavy Atom Count27
Formal Charge0
Complexity615
SMILES
CC1=C(C=CC(=C1)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C=C4)O)C)O
InChI
InChI=1S/C21H18O5S/c1-13-11-15(7-9-18(13)22)21(16-8-10-19(23)14(2)12-16)17-5-3-4-6-20(17)27(24,25)26-21/h3-12,22-23H,1-2H3
InChIKey
OBRMNDMBJQTZHV-UHFFFAOYSA-N
Chemical Structure
2D Structure
2D structure of Cresol Red
CAS: 1733-12-6
CID: 73013
Formula: C21H18O5S
MW: 382.4
Interactive 3D Structure
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View on PubChemRaw 3D data
Computed Properties
PropertyValue
Molecular Weight382.4
XLogP33.7
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Exact Mass382.08749484
Monoisotopic Mass382.08749484
Topological Polar Surface Area92.2 Ų
Heavy Atom Count27
Formal Charge0
Complexity615
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently-Bonded Unit Count1
Compound Is CanonicalizedYes

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