Thermo Scientific Chemicals Thymol Blue, Indicator

Description

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Indicator

Specifications

Chemical Identifiers

• CAS: 76-61-9
• Molecular Formula: C27H30O5S
• Molecular Weight (g/mol): 466.592
• MDL Number: MFCD00005869
• InChI Key: PRZSXZWFJHEZBJ-UHFFFAOYSA-N
• Synonym: TB, Thymolsulfonephthalein
• PubChem CID: 65565
• IUPAC Name: 4-[3-(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-5-methyl-2-propan-2-ylphenol
• SMILES: CC1=CC(=C(C=C1C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C=C4C)O)C(C)C)C(C)C)O

• Melting Point: 221.0°C
• Merck Index: 15, 9555
• Solubility Information: Solubility in water: insoluble. Other solubilities: soluble in diluted alkali solutions, soluble in alcohol
• Infrared Spectrum: Authentic
• Formula Weight: 466.58
• Grade: Pure
• Packaging: Glass bottle
• Specific Extinction: 700 min. (596nm, in 0.01N NaOH)
• Visual Transition Interval: Acid range: from pH 1.2 (red) to pH 2.8 (yellow), alkaline range: from pH 8.0 (yellow) to pH 9.6 (blue)
• Color: Brown to Green
• Quantity: 25 g
• Physical Form: Fine Crystalline Powder
• Chemical Name or Material: Thymol Blue

RUO – Research Use Only