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Merck
모든 사진(2)

주요 문서

C85778

Sigma-Aldrich

o-Cresolphthalein

Indicator grade, powder

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About This Item

실험식(Hill 표기법):
C22H18O4
CAS Number:
Molecular Weight:
346.38
Beilstein:
310554
EC Number:
MDL number:
UNSPSC 코드:
12171500
PubChem Substance ID:
NACRES:
NA.47

제품명

o-Cresolphthalein, indicator grade

Grade

indicator grade

Quality Level

양식

powder

기술

titration: suitable

색상

beige

pH

8.2-9.8, colorless to red

mp

219-221 °C (lit.)

λmax

381 nm (2nd)
566 nm

ε (흡광계수)

≥10000 at 294-300 nm
≥39000 at 564-570 nm
≥5000 at 378-384 nm

응용 분야

diagnostic assay manufacturing
hematology
histology

저장 온도

room temp

SMILES string

Cc1cc(ccc1O)C2(OC(=O)c3ccccc23)c4ccc(O)c(C)c4

InChI

1S/C22H18O4/c1-13-11-15(7-9-19(13)23)22(16-8-10-20(24)14(2)12-16)18-6-4-3-5-17(18)21(25)26-22/h3-12,23-24H,1-2H3

InChI key

CPBJMKMKNCRKQB-UHFFFAOYSA-N

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애플리케이션

O-Cresolphthalein has been used as a component in calcifying media for calcification assay.

생화학적/생리학적 작용

o-Cresolphthalein is a reversible pH indicator. The kinetics of the reverse pathway (red-purple to colorless) is slow, thereby making it an appropriate molecule to check flow patterns in ducts with corrugated walls. It is also used for the colorimetric determination of calcium content via the o-cresolphthalein complexone method. Binding of calcium to o-cresolphthalein, in the presence of alkaline conditions (pH 10-12), results in the formation of a red complex with an absorbance at 570-575nm.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Eyeshields, Gloves, type N95 (US)


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문서 라이브러리 방문

Natalia Campos-Obando et al.
European journal of epidemiology (2018-05-17)
Hyperphosphatemia has been associated with increased mortality in chronic kidney disease but the nature of such a relation in the general population is unclear. To investigate the association between phosphate (P) levels and all-cause and cause-specific mortality, we assessed two
Jin-Hyun Kim et al.
PloS one, 14(4), e0215244-e0215244 (2019-04-17)
In the stratum corneum, the intercellular junction made up of cadherin proteins provides the structural integrity of the framework. Ca2+ ions are known to play a key role in maintaining this junction. In this study, we hypothesized that Ca2+ chelation
Hyunseok Peter Kang et al.
Clinical chemistry, 50(4), 741-746 (2004-02-14)
Gadolinium formulations, which are administered as contrast agents in magnetic resonance imaging examinations, interfere with colorimetric serum calcium determinations. We performed an in vitro study to determine the extent to which three gadolinium formulations-gadodiamide (Omniscan), gadopentetate dimeglumine (Magnevist), and gadoversetamide
1,25-Dihydroxyvitamin D3 increases in vitro vascular calcification by modulating secretion of endogenous parathyroid hormone-related peptide.
Jono S, et al.
Circulation, 98, 1302-1302 (1998)
Ali Duran et al.
Journal of hazardous materials, 169(1-3), 466-471 (2009-04-29)
In present study preconcentration followed by solid phase extraction of heavy metal ions, Cu(II), Co(II), Ni(II) and Pb(II) using a multiwalled carbon nanotubes (MWNTs) and complexing reagent o-cresolphthalein complexone were investigated. The effects of parameters, including pH of the solutions

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