Sigma-Aldrich 114553 Thymolphthalein ACS reagent, Dye content 95 % 50 gr
Kategori
Marka
Stok Kodu
LB.SA.114553-50G
Kısa Bilgi
Synonym(s): 5′,5′′-Diisopropyl-2′,2′′-dimethylphenolphthalein Empirical Formula (Hill Notation): C28H30O4 CAS Number: 125-20-2 Molecular Weight: 430.54 Beilstein: 359413 EC Number: 204-729-7 MDL number: MFCD00005909 PubChem Substance ID: 24847182 NACRES: NA.47
Garanti Süresi
24 Ay
| Sigma-Aldrich 114553 Thymolphthalein ACS reagent, Dye content 95 % 50 gr |
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Synonym(s): 5′,5′′-Diisopropyl-2′,2′′-dimethylphenolphthalein
Empirical Formula (Hill Notation): C28H30O4
CAS Number: 125-20-2
Molecular Weight: 430.54
Beilstein: 359413
EC Number: 204-729-7
MDL number: MFCD00005909
PubChem Substance ID: 24847182
NACRES: NA.47 |
|
PROPERTIES
grade ACS reagent
Quality Level 200
form solid
composition Dye content, 95%
clarity of soln passes test
technique(s) 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
DESCRIPTION
General description
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.[1][2]
Application
Thymolphthalein has been used as a pH indicator[3] in [14C] urea breath test to determine when the CO2 trap is full.[4][5][6] |
