Thermo Scientific Chemicals

Phenol Red

Catalog number: B21710.30
250 g, Each
Thermo Scientific Chemicals

Phenol Red

Catalog number: B21710.30
250 g, Each
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Catalog number: B21710.30
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Chemical Identifiers

CAS
143-74-8
IUPAC Name
3,3-bis(4-hydroxyphenyl)-3H-2,1λ⁶-benzoxathiole-1,1-dione
Molecular Formula
C19H14O5S
InChI Key
BELBBZDIHDAJOR-UHFFFAOYSA-N
SMILES
OC1=CC=C(C=C1)C1(OS(=O)(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1
Appearance (Color)
Red
Form
Powder
Loss on Drying
≤3.0% (105?C)
lambda-max (UV-Vis)
555-565, 0.1% aq. sodium carbonate
Solution Test
(0.1% w/v in 95% ethanol) : Clear

Description

Phenol red is used as a non absorbed marker in gravimetric method. It is a pH indicator used in cell biology laboratories and in home swimming pool test kits. It is used to check the kidney function based on the excreted phenol red by colorimetric method.

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
Phenol red is used as a non absorbed marker in gravimetric method. It is a pH indicator used in cell biology laboratories and in home swimming pool test kits. It is used to check the kidney function based on the excreted phenol red by colorimetric method.

Solubility
Soluble in water, ethanol and methanol. Insoluble in chloroform.

Notes
Incompatible with strong oxidizing agents.
RUO – Research Use Only

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