C85778

o-Cresolphthalein

Indicator grade, powder

• Fórmula empírica (Notação de Hill): C₂₂H₁₈O₄
• Número CAS: 596-27-0
• Peso molecular: 346.38
• Beilstein: 310554
• Número CE: 209-881-8
• Número MDL: MFCD00005912
• Código UNSPSC: 12171500
• ID de substância PubChem: 24893078
• NACRES: NA.47

Propriedades

• product name: o-Cresolphthalein, indicator grade
• grau: indicator grade
• Nível de qualidade: 200
• forma: powder
• técnica(s): titration: suitable
• cor: beige
• pH: 8.2-9.8, colorless to red
• pf: 219-221 °C (lit.)
• λmax: 381 nm (2nd); 566 nm
• ε (coeficiente de extinção): ≥10000 at 294-300 nm; ≥39000 at 564-570 nm; ≥5000 at 378-384 nm
• aplicação(ões): diagnostic assay manufacturing; hematology; histology
• temperatura de armazenamento: room temp
• cadeia de caracteres SMILES: 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
• chave InChI: CPBJMKMKNCRKQB-UHFFFAOYSA-N

Descrição

Aplicação

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

Ações bioquímicas/fisiológicas

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.

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable
• Equipamento de proteção individual: Eyeshields, Gloves, type N95 (US)