Polyoxyethylene (20) sorbitan monopalmitate
9005-66-7 · E 434 · Polyoxyethylene (20) sorbitan · Polyoxyethylene (20) sorbitan monopalmitate · Polyoxyethylene sorbitan monopalmitate (polysorbate 40) · Polysorbate 40 · E434 · 434E number E434INS 434CAS 9005-66-7
Used as an emulsifier.
Also known as polysorbate 40, this emulsifier is used in baked goods, icings and non-dairy creamers.
Where it is and isn’t permitted
| Jurisdiction | Status | Scope and limits | Citation |
|---|---|---|---|
| United States | Not listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited. | ||
| Codex Alimentarius | Permitted, with conditions | 57 food categories highest permitted level 25,000 mg/kg Show every food category
| CXS 192-1995 Table One, INS 434and 56 further provisionsretrieved 2026-09-07 |
What it is made from
Made by attaching ethylene oxide units to sorbitan monopalmitate. The palmitic acid may come from palm oil or animal fat.
- Vegan status depends on the source
- Vegetarian status depends on the source
- May raise a halal question
- May raise a kosher question
This is not an omission. What this additive is made from is not fixed — depending on the manufacturer it may be plant, animal or microbial in origin, nobody is required to say which, and the same product can change source between production runs. Ask the manufacturer if it matters to you; a label cannot answer it.
- CAS registry number
- 9005-66-7
Every name it appears under
8 recorded names. A label may use any of them.
E number
- E434
INS number
- 434
CAS registry number
- 9005-66-7
Other names
- E 434
- Polyoxyethylene (20) sorbitan
- Polyoxyethylene (20) sorbitan monopalmitate
- Polyoxyethylene sorbitan monopalmitate (polysorbate 40)
- Polysorbate 40
Hazard reference values
No reference value for this substance in the sources we hold.
Evidence and how bodies read it
Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.
Sources for this page
- gsfa retrieved 2026-09-07
Full licence terms and publisher details on Sources. How this page is built and updated: Method.
Machine-readable:/api/v1/additives/polyoxyethylene-20-sorbitan-monopalmitate.json