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Key Documents

P4633

Sigma-Aldrich

Phenol Red

pH indicator

Synonym(s):

Phenolsulfonphthalein

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About This Item

Empirical Formula (Hill Notation):
C19H14O5S
CAS Number:
Molecular Weight:
354.38
Beilstein:
326470
EC Number:
MDL number:
UNSPSC Code:
12171500

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technique(s)

titration: suitable

visual transition interval

6.8-8.2, yellow to red

SMILES string

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

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

BELBBZDIHDAJOR-UHFFFAOYSA-N

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Application

Suitable for use as a pH indicator.

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Certificates of Analysis (COA)

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Hirotaka Miyamoto et al.
The Journal of pharmacy and pharmacology, 64(6), 848-854 (2012-05-11)
The aim of this study was to determine the factor changing the hepatic disposition of a drug during hypothermia using a rat liver perfusion system. The livers of male Wistar rats were perfused at 37, 32 or 28°C in the
Chromoendoscopy for H. pylori infection--time for a reaction?
José Carlos Marín-Gabriel et al.
Revista espanola de enfermedades digestivas : organo oficial de la Sociedad Espanola de Patologia Digestiva, 104(1), 1-3 (2012-02-04)
Dongdong Wang et al.
Journal of ethnopharmacology, 139(1), 189-193 (2011-11-22)
Bulbus Fritillaria Cirrhosae (BFC), known by the Chinese name "Chuan-Bei-Mu", is used as an antitussive, antiasthmatic and expectorant drug for more than 2000 years in China, and Bulbus of Fritillaria wabuensis S. Y. Tang & S. C. Yueh (BFW) was
Rita M Cowell et al.
Biochemical and biophysical research communications, 379(2), 578-582 (2009-01-03)
Recent evidence suggests that the transcriptional coactivator peroxisome proliferator activated receptor gamma coactivator 1alpha (PGC-1alpha) is involved in the pathology of Huntington's Disease (HD). While animals lacking PGC-1alpha express lower levels of genes involved in antioxidant defense and oxidative phosphorylation
Jian-xiang Liu et al.
Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences, 41(4), 430-433 (2012-08-29)
To develop a method for simultaneous assay of propulsion and absorption in small intestine. The mice were administrated through gastric tube with mixed reagents containing 0.12% phenol red, D-xylose (1.25%, 2.5% and 5%) and 15% gelatin. The influence of phenol

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