C85778

o-クレゾールフタレイン

Indicator grade, powder

• 実験式（ヒル表記法）: C₂₂H₁₈O₄
• CAS番号: 596-27-0
• 分子量: 346.38
• Beilstein: 310554
• EC Number: 209-881-8
• MDL番号: MFCD00005912
• UNSPSCコード: 12171500
• PubChem Substance ID: 24893078
• NACRES: NA.47

特性

• product name: o-クレゾールフタレイン, indicator grade
• グレード: indicator grade
• 品質水準: 200
• 形状: powder
• テクニック: titration: suitable
• 色: beige
• pH: 8.2-9.8, colorless to red
• mp: 219-221 °C (lit.)
• λmax: 381 nm (2nd); 566 nm
• &ε; （減衰係数）: ≥10000 at 294-300 nm; ≥39000 at 564-570 nm; ≥5000 at 378-384 nm
• アプリケーション: diagnostic assay manufacturing; hematology; histology
• 保管温度: room temp
• SMILES記法: 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

詳細

アプリケーション

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

生物化学的／生理学的作用

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.

安全性情報

• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 3
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable
• 個人用保護具 (PPE): Eyeshields, Gloves, type N95 (US)