114553

Thymolphthalein

ACS reagent, Dye content 95 %

• 동의어(들): 5′,5′′-Diisopropyl-2′,2′′-dimethylphenolphthalein
• 실험식(Hill 표기법): C₂₈H₃₀O₄
• CAS Number: 125-20-2
• Molecular Weight: 430.54
• Beilstein: 359413
• EC Number: 204-729-7
• MDL number: MFCD00005909
• UNSPSC 코드: 12171500
• PubChem Substance ID: 24847182
• NACRES: NA.47

속성

• Grade: ACS reagent
• Quality Level: 200
• 형태: solid
• 구성: Dye content, 95%
• 용액 투명도: passes test
• 기술: titration: suitable
• visual transition interval: 8.8-10.5, colorless to blue
• mp: 251-253 °C (lit.)
• λmax: 396 nm (2nd); 592 nm
• SMILES string: CC(C)c1cc(c(C)cc1O)C2(OC(=O)c3ccccc23)c4cc(C(C)C)c(O)cc4C
• InChI: 1S/C28H30O4/c1-15(2)20-13-23(17(5)11-25(20)29)28(22-10-8-7-9-19(22)27(31)32-28)24-14-21(16(3)4)26(30)12-18(24)6/h7-16,29-30H,1-6H3
• InChI key: LDKDGDIWEUUXSH-UHFFFAOYSA-N

설명

일반 설명

Thymolphthalein (5′, 5′′-Diisopropyl-2′, 2′′-dimethylphenolphthalein) is an acid-base indicator which is colorless in solutions with a pH below 8.5 and blue in solutions with a pH above 9.5. Thymolphthalein has been used as an indicator in periodate-thiosulfate reaction.

애플리케이션

Thymolphthalein has been used as a pH indicator in [¹⁴C] urea breath test to determine when the CO₂ trap is full.

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)