Thymol Blue
SIAL/114545 - ACS reagent
Synonym: Thymolsulfonphthalein
CAS Number: 76-61-9
Empirical Formula (Hill Notation): C27H30O5S
Molecular Weight: 466.59
EC Number: 200-973-3
MDL Number: MFCD00005869
Linear Formula: C27H30O5S
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 114545-25G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 114545-5G
| ε (extinction coefficient) | ≥12000 at 298-302 nm in 0.1 M NaOH at 0.01 g/L |
| λmax | 376 nm (2nd) |
| 594 nm | |
| application(s) | diagnostic assay manufacturing hematology histology |
| clarity of soln | passes test |
| density | 0.979 g/cm3 |
| form | powder |
| grade | ACS reagent |
| InChI | 1S/C27H30O5S/c1-15(2)19-1 |
| InChI key | PRZSXZWFJHEZBJ-UHFFFAOYSA |
| mp | 221-224 °C (dec.) (lit.) |
| Quality Level | 200  |
| SMILES string | CC(C)c1cc(c(C)cc1O)C2(OS( |
| solubility | ethanol: 0.1%, clear |
| storage temp. | room temp |
| technique(s) | titration: suitable |
| visual transition interval | 1.2-2.8, red to yellow |
| 1.2-2.8, red to yellow(acid range) | |
| 8.0-9.2, yellow to blue | |
| 8.0-9.2, yellow to blue(alkaline range) |
| Application: | Thymol Blue has been used for the in situ spectrophotometric pH measurement. |
| Biochem/physiol Actions: | Thymol Blue is a pH indicator, which is yellow/orange at low pH and blue in color at high pH. |
| General description: | Thymol Blue is a sulfonephthalein dye. It is also known as thymolsulfonphthalein. |
| Packaging: | 5, 25 g in glass bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| mp | 221-224 °C (dec.) (lit.) |
| Density | 0.979 g/cm3 |
| Storage Temp. | room temp |
| UNSPSC | 12171500 |