C85778

o-Cresolphthalein

Indicator grade, powder

• 실험식(Hill 표기법): C₂₂H₁₈O₄
• CAS Number: 596-27-0
• Molecular Weight: 346.38
• Beilstein: 310554
• EC Number: 209-881-8
• MDL number: MFCD00005912
• UNSPSC 코드: 12171500
• PubChem Substance ID: 24893078
• NACRES: NA.47

속성

• Product Name: o-Cresolphthalein, indicator grade
• Grade: indicator grade
• Quality Level: 200
• 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

설명

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.

안전성 정보

• 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)