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Sigma-Aldrich Thymolphthalein A.C.S. Rea
List Price $133.00 Your Price $133.00
Sigma-Aldrich Thymolphthalein A.C.S. Reagent - SIAL (Additional S&H Or Hazmat Fees May Apply)
NETA PART: SIAL-114553-50G
MFG.PART: 114553-50G
UNSPSC: 12171500
Manufacturer: Sigma-Aldrich
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
Related Categories
Dry Dyes & Certified Stains
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]
wgk_germany
WGK 3
PPE
Eyeshields, Gloves, type N95 (US)
| SKU | SIAL-114553-50G |
|---|---|
| Supplier Part Number | 114553-50G |
| UM | EA |
| UNSPSC | 12171500 |
| Manufacturer | Sigma-Aldrich |
| Temperature | room temp |
| ProductLine | SIAL |
| Qty | 1 |
| MinOrderQty | 1 |
| Weight | 10.000000 |
| Lead Time | 9 |
| Hazardous | N |
| CAS Number | 125-20-2 |
| Energy Star | No |
| Green | No |
| Controlled | N |