Thymol blue, pure indicator
Supplier: Thermo Fisher Scientific
Certificates
About this item
Synonyms: Thymolsulphonphthalein, 3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide
CAS Number:76-61-9
:
Formula:C₂₇H₃₀O₅S
MDL Number:MFCD00005869
:466.6 g/mol
Merck Index:12,09541
Melting Pt:221 °C (dec.)
Storage Temperature:Ambient
EINECS:200-973-3
Specifications
- Environmentally Preferable:
Specifications
Specification Test Results
- Appearance:Dark green to dark brown Crystalline powder
- Infrared spectrum:Conforms
- Solubility:(0.1 % in ethanol) Clear
- Specific extinction E (1%/1cm):≥700 (596 nm, in 0.01 N NaOH)
- Visual transition interval:from pH 1.2 (red) to pH 2.8 (yellow)