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Phenol Red

CAT: 0013-GTR19301543-01Size: 1 gDry Ice: NoHazardous: No
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CAT#:0013-GTR19301543-01Size:1 g
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Description
Phenol Red is a sulfonphthalein pH indicator and red dye used as a diagnostic aid for renal function assessment. It is widely employed in both in vitro and in vivo research, including studies of gastrointestinal transport, cell culture media monitoring, and various physiological systems.
CAS Number
143-74-8
Product Name Alternative
Inhibit, Inhibitor, Fenolipuna, hydrogen peroxide, Sulphental, Sulfonphthal, yellow, red, pH indicator, Phenol Red, Phenolsulfonephthalein
Field of Research
Pharmacology & Drug Discovery
Purity
96.35% (May vary between batches)
Solubility
DMSO:247 mg/mL (696.99 mM) ;10% DMSO+40% PEG300+5% Tween-80+45% Saline:3.3 mg/mL (9.31 mM)
Molecular Weight
354.38
Storage Conditions
-20°C
Notes
For research use only.

Chemical Information

Phenol Red

Phenol red is 3H-2,1-Benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 4-hydroxyphenyl groups. A pH indicator changing colour from yellow below pH 6.8 to bright pink above pH 8.2, it is commonly used as an indicator in cell cultures and in home swimming pool test kits. It is also used in the (now infrequently performed) phenolsulfonphthalein (PSP) test for estimation of overall blood flow through the kidney. It has a role as a diagnostic agent, an acid-base indicator and a two-colour indicator. It is a member of phenols, a 2,1-benzoxathiole, a sultone and an arenesulfonate ester.

CAS Number143-74-8
PubChem CID4766
IUPAC Name4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol
Molecular FormulaC19H14O5S
Molecular Weight354.4
XLogP3
Topological Polar Surface Area92.2
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Heavy Atom Count25
Formal Charge0
Complexity545
SMILES
C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC=C(C=C3)O)C4=CC=C(C=C4)O
InChI
InChI=1S/C19H14O5S/c20-15-9-5-13(6-10-15)19(14-7-11-16(21)12-8-14)17-3-1-2-4-18(17)25(22,23)24-19/h1-12,20-21H
InChIKey
BELBBZDIHDAJOR-UHFFFAOYSA-N
Chemical Structure
2D Structure
2D structure of Phenol Red
CAS: 143-74-8
CID: 4766
Formula: C19H14O5S
MW: 354.4
Interactive 3D Structure
Loading 3D structure...
View on PubChemRaw 3D data
Computed Properties
PropertyValue
Molecular Weight354.4
XLogP33
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Exact Mass354.05619472
Monoisotopic Mass354.05619472
Topological Polar Surface Area92.2 Ų
Heavy Atom Count25
Formal Charge0
Complexity545
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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