Biotina 99% - 5 Gr - Sigma Acido Cítrico Anidro Pa - 1.000 Gr - Synth

Phenol Red (Phenolsulfonphthalein) - 25 Gr - Sigma

Código: 25171

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Descrição

Bioreagent, Powder

Sinônimo(s):

Phenolsulfonphthalein

Sobre este item

Fórmula empírica (Notação de Hill):

C₁₉H₁₄O₅S

Número CAS:

143-74-8

Peso molecular:

354.38

NACRES:

NA.47

PubChem Substance ID:

24898424

UNSPSC Code:

12171500

EC Number:

205-609-7

MDL number:

MFCD00003552

Beilstein/REAXYS Number:

326470

Nome do produto

Phenol Red, powder, BioReagent, suitable for cell culture

InChI key

BELBBZDIHDAJOR-UHFFFAOYSA-N

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

SMILES string

Oc1ccc(cc1)C2(OS(=O)(=O)c3ccccc23)c4ccc(O)cc4

product line

BioReagent

form

powder

technique(s)

cell culture | mammalian: suitable

color

dark red to dark brown

visual transition interval

6.8-8.2, yellow to red

mp

>300 °C

solubility

1 M NaOH: 1 mg/mL

application(s)

diagnostic assay manufacturing

storage temp.

room temp

Quality Level

200

Application

Phenol red is commonly used as a pH indicator in biology and medicine. It is incorporated into microbiological culture media for the identification of Escherichia coli strains. Its clinical diagnostic applications include investigation of gastric and duodenal ulcers and in the assessment of tear function in ophthalmology. Phenol red is also used as a tracer to assess the permeability of the ileal mucosal membrane and to assess bacterial leakage through root-filling materials in dentistry.

Suitable for use as a pH indicator.

General description

Phenol Red is a phenolsulfonphthalein compound. It is present as a sulfonated hydroxyquinone in weakly acidic aqueous solutions. In alkaline solutions, the dye forms a hydrophilic dianion (a small, red anion and has a larger conjugated system than the yellow hydroxyquinone).

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