Thymol blue
Also known as: Thymolsulfonephthalein, Thymolsulfophthalein, TB, 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis[5-methyl-2-(1-methylethyl)phenol] S,S-dioxide, S NO 879, Thymol Blue TS, Thymol Blue Indicator, Thymolsulfone phthalein, a-Hydroxy-a,a-bis(5-hydroxycarvacryl)-o-toluenesulfonic Acid g-Sultone, bleudethymol
Thymol blue (CAS 76-61-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C27H30O5S and a molecular weight of 466.589 g/mol. Key properties include a melting point of 221 °C, a boiling point of 580.5±50.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 304.9±30.1 °C. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 76-61-9
- Jingsj CID
- J-1492456-1
- Molecular Formula
- C27H30O5S
- Molecular Weight
- 466.589 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | 221 °C |
|---|---|
| Boiling Point | 580.5±50.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 304.9±30.1 °C |
| Exact Mass | 466.181396 |
| PSA | 92.21000 |
| LogP | 6.62 |
| Vapor Pressure | 0.0±1.7 mmHg at 25°C |
| Refractive Index | 1.611 |
| Stability | Stable. Combustible. Dust may form an explosive mixture with air. Incompatible with strong oxidizing agents. |
Frequently Asked Questions
What is the CAS number of Thymol blue?
The CAS number of Thymol blue is 76-61-9.
What are the molecular formula and molecular weight of Thymol blue?
Thymol blue has molecular formula C27H30O5S and molecular weight 466.589 g/mol.
Which suppliers offer Thymol blue?
1 supplier(s) listed; request a quote for pricing.
What are the upstream and downstream products of Thymol blue?
For Thymol blue, Upstream Products: Thymol, 2-Sulfobenzoic anhydride; Downstream Products: Bromothymol blue, Thymol blue sodium salt.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Thymol blue (CAS 76-61-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492456-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.