Phenol red

CAS: 143-74-8

Ref. 3D-FP01364

Product Information

• Name: Phenol red
• Synonyms: Phenolsulfonephthalein3,3-Bis(p-hydroxyphenyl)-3H-2,1-benzoxathiole 1,1-dioxide, 3,3-Bis(p-hydroxyphenyl)-2,1-3H-benzoxathiole 1,1-dioxide, 3H-2,1-Benzoxathiole, 3,3-bis(4-hydroxyphenyl)-, 1,1-dioxide, 3H-2,1-Benzoxathiole, phenol deriv., 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bisphenol S,S-dioxide, 4,4′-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[phenol], Fenolipuna, Nsc 10459, PSP, PSP (indicator), Phenol Red, Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis-, S,S-dioxide, Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)di-, S,S-dioxide, Phenolrot, Phenolsulfonaphthalein, Phenolsulfonephthalein, Phenolsulfonphthalein, Phenolsulphonphthalein, Rojo De Fenol, Rouge de phenol, Sulfonphthal, Sulphental, Sulphonthal, Tf-R 2, α-Hydroxy-α,α-bis(p-hydroxyphenyl)-o-toluenesulfonic acid γ-sultone

Description

Phenol red is a pH indicator that finds broad applications from chemistry to microbiology. Colour varies from yellow at pH<6.8 (lmax 443nm) through to light red/pink at 6.88.2. It is widely used in cell culture to monitor pH and for colorimetric titration. For example, phenol red can be used to quantify Br- content in sea or fresh water. It is added to VTM as pH indicator, at the concentration of 10mg/ml, maintaining a pink colour at neutral pH.

• Brand: Biosynth

Chemical properties

• Molecular weight: 354.38 g/mol
• Formula: C₁₉H₁₄O₅S
• Color/Form: Powder
• 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
• InChI key: InChIKey=BELBBZDIHDAJOR-UHFFFAOYSA-N
• SMILES: O=S1(=O)OC(c2ccc(O)cc2)(c2ccc(O)cc2)c2ccccc21