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Merck
모든 사진(3)

주요 문서

114529

Sigma-Aldrich

Phenol Red

ACS reagent

동의어(들):

Phenolsulfonphthalein

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About This Item

실험식(Hill 표기법):
C19H14O5S
CAS Number:
Molecular Weight:
354.38
Beilstein:
326470
EC Number:
MDL number:
UNSPSC 코드:
12171500
PubChem Substance ID:
NACRES:
NA.47

Grade

ACS reagent

Quality Level

형태

powder

용액 투명도

passes test

기술

titration: suitable

visual transition interval

6.8-8.2, yellow to red

solubility

water: 0.77 g/L at 100 °C

λmax

360 nm
557 nm (2nd)

ε (흡광계수)

≥10000 at 288-294 nm in H2O
≥55000 at 555-561 nm in H2O
≥7000 at 357-363 nm in H2O

응용 분야

diagnostic assay manufacturing
hematology
histology

저장 온도

room temp

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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일반 설명

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 that has a larger conjugated system than the yellow hydroxyquinone).

애플리케이션

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 the investigation of gastric and duodenal ulcers and 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.
Phenol Red has been used for the preparation of phenol red gavage meal for measurement of gastric emptying in rats.
Suitable for use as a pH indicator.

생화학적/생리학적 작용

Phenol Red is a pH indicator which changes color from yellow to red.

픽토그램

Exclamation mark

신호어

Warning

유해 및 위험 성명서

Hazard Classifications

Skin Irrit. 2 - STOT SE 3

표적 기관

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

dust mask type N95 (US), Eyeshields, Gloves


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