Phenol red

CAT: 0926-FP01364-02Size: 0.5 KgDry Ice: NoHazardous: No

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CAT#:0926-FP01364-02Size:0.5 Kg

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CAS Number

143-74-8

Synonyms

Phenolsulfonephthalein;3,3-Bis (p-hydroxyphenyl) -3H-2,1-benzoxathiole 1,1-dioxide

MDL Number

MFCD00003552

Molecular Formula

C19H14O5S

Molecular Weight

354.38 g/mol

Controlled

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 Number	143-74-8
PubChem CID	4766
IUPAC Name	4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol
Molecular Formula	C19H14O5S
Molecular Weight	354.4
XLogP	3
Topological Polar Surface Area	92.2
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	2
Heavy Atom Count	25
Formal Charge	0
Complexity	545

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

CAS: 143-74-8

CID: 4766

Formula: C19H14O5S

MW: 354.4

Interactive 3D Structure

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Computed Properties

Property	Value
Molecular Weight	354.4
XLogP3	3
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	2
Exact Mass	354.05619472
Monoisotopic Mass	354.05619472
Topological Polar Surface Area	92.2 Å²
Heavy Atom Count	25
Formal Charge	0
Complexity	545
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
Covalently-Bonded Unit Count	1
Compound Is Canonicalized	Yes

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