Polysorbate 80

Also known as: Tween 80, Polyoxyethylene (20) sorbitan monooleate, Polyoxyethylene sorbitan monooleate, Sorbitan monooleate polyoxyethylene (20)

Polysorbate 80 (CAS 9005-65-6) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C46H52N5O8P and a molecular weight of 833.907 g/mol. Key properties include a melting point of -21ºC, a boiling point of 695.8±55.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 207.1±25.0 °C. It is listed by 1 supplier, from 0.10 to 0.30 CNY per 500ml. Record last updated Aug 21, 2026.

CAS No.: 9005-65-6
Jingsj CID: J-1094636-9
Molecular Formula: C₄₆H₅₂N₅O₈P
Molecular Weight: 833.907 g/mol
Category: Esters
Last updated: 8/21/2026

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Supplier	Purity / Pack	Base Price	Unit Price	Origin
Jingkang In Stock	CP 500ml	¥50.00	$0.01 /mlBest ¥0.10/ml CNY	CN China MOQ 500ml	Visit Website
Jingkang In Stock	药用级 500ml	¥70.00	$0.02 /ml ¥0.14/ml CNY	CN China MOQ 500ml	Visit Website
Jingkang In Stock	细胞培养级 500ml	¥150.00	$0.04 /ml ¥0.30/ml CNY	CN China MOQ 500ml	Visit Website

Physicochemical Properties

Melting Point	-21ºC
Boiling Point	695.8±55.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	207.1±25.0 °C
Exact Mass	833.355347
PSA	133.14000
LogP	9.39
Vapor Pressure	0.0±5.0 mmHg at 25°C
Refractive Index	1.502
Additional Property	5-10 g/100 mL at 23 ºC

Activity & Biological Data

Additional Information	[1]. Brandl MT, et al. Effect of the surfactant tween 80 on the detachment and dispersal of Salmonella enterica serovar Thompson single cells and aggregates from cilantro leaves as revealed by image analysis. Appl Environ Microbiol. 2014 Aug;80(16):5037-42. [2]. Pan Y, et al. Pharmacokinetics study of ferulic acid in rats after oral administration of γ-oryzanol under combined use of Tween 80 by LC/MS/MS. Eur Rev Med Pharmacol Sci. 2014;18(2):143-50.

Additional Information

[1]. Brandl MT, et al. Effect of the surfactant tween 80 on the detachment and dispersal of Salmonella enterica serovar Thompson single cells and aggregates from cilantro leaves as revealed by image analysis. Appl Environ Microbiol. 2014 Aug;80(16):5037-42. [2]. Pan Y, et al. Pharmacokinetics study of ferulic acid in rats after oral administration of γ-oryzanol under combined use of Tween 80 by LC/MS/MS. Eur Rev Med Pharmacol Sci. 2014;18(2):143-50.

Customs & Trade Information

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Polysorbate 80?

The CAS number of Polysorbate 80 is 9005-65-6.

What are the molecular formula and molecular weight of Polysorbate 80?

Polysorbate 80 has molecular formula C46H52N5O8P and molecular weight 833.907 g/mol.

Which suppliers offer Polysorbate 80?

1 supplier(s) listed; reference unit price ¥0.10–0.30 /ml.

What are the upstream and downstream products of Polysorbate 80?

For Polysorbate 80, Downstream Products: Malonaldehyde.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Polysorbate 80 (CAS 9005-65-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1094636-9 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.