Polysorbate 40
Also known as: Tween 40, Polyoxyethylene (20) sorbitan monopalmitate, Polyoxyethylene sorbitan monopalmitate, Sorbitan monopalmitate, ethoxylated, EO 20 mol, Tween No 40
Polysorbate 40 (CAS 9005-66-7) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C44H54N7O8P and a molecular weight of 839.915 g/mol. Key properties include a melting point of 0.1 °C, a density of 1.083 g/mL at 25 °C(lit.) and a flash point of >110.0 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 9005-66-7
- Jingsj CID
- J-1108805-3
- Molecular Formula
- C44H54N7O8P
- Molecular Weight
- 839.915 g/mol
- Category
- Esters
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 0.1 °C |
|---|---|
| Density | 1.083 g/mL at 25 °C(lit.) |
| Flash Point | >110.0 °C |
| Exact Mass | 839.377136 |
| PSA | 133.14000 |
| LogP | 7.22 |
| Appearance | viscous liquid |
| Refractive Index | n20/D 1.47(lit.) |
| Additional Property | 100 g/L |
Frequently Asked Questions
What is the CAS number of Polysorbate 40?
The CAS number of Polysorbate 40 is 9005-66-7.
What are the molecular formula and molecular weight of Polysorbate 40?
Polysorbate 40 has molecular formula C44H54N7O8P and molecular weight 839.915 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Polysorbate 40 (CAS 9005-66-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1108805-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.