Skip to Content
MilliporeSigma

Key Documents

View All Documentation

P6585

TWEEN® 20

Low-peroxide; Low-carbonyls

Synonym(s):

Polyethylene glycol sorbitan monolaurate, Polyoxyethylenesorbitan monolaurate

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

CAS Number:
9005-64-5
UNSPSC Code:
12161900
NACRES:
NA.21
MDL number:
MFCD00165986
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Quality Level

200

description

non-ionic

form

viscous liquid

mol wt

~1228

contains

BHT as antioxidant

impurities

≤0.5 μmol/g Peroxides, ≤1.0 μmol/g Carbonyls, ≤3.0% water

refractive index

n20/D 1.468 (lit.)

CMC

0.06 mM (20-25°C)

transition temp

cloud point 76 °C

density

1.095 g/mL at 25 °C (lit.), 1.1 g/cm3 at 25 °C (lit.)

HLB

16.7

storage temp.

2-8°C

SMILES string

CCCCCCCCCCCC(=O)OCCOCC(C1C(C(CO1)OCCO)OCCO)OCCO

InChI

1S/C26H50O10/c1-2-3-4-5-6-7-8-9-10-11-24(30)34-19-18-31-20-22(32-15-12-27)26-25(35-17-14-29)23(21-36-26)33-16-13-28/h22-23,25-29H,2-21H2,1H3

InChI key

HMFKFHLTUCJZJO-UHFFFAOYSA-N

General description

Tween®20 is a polyoxyethylene sorbitol ester that belongs to the polysorbate family. It is a nonionic detergent having a molecular weight of 1,225 daltons, assuming 20 ethylene oxide units, 1 sorbitol, and 1 lauric acid as the primary fatty acid. The ethylene oxide subunits are responsible for the hydrophilic nature of the surfactant, while the hydrocarbon chains provide the hydrophobic environment. Sorbitol forms the backbone ring to which the ethylene oxide polymers are attached.

Application

Tween 20 has been used along with PBS to wash plates in ELISA technique.
Non-ionic detergent

Preparation Note

Purified to remove peroxides and aldehydes

Legal Information

TWEEN is a registered trademark of Croda International PLC

Still not finding the right product?

Explore all of our products under TWEEN® 20

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

527.0 °F - Pensky-Martens closed cup

flash_point_c

275 °C - Pensky-Martens closed cup

ppe

Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
024K5302
116H5006
047H5007
037H5043
027H5045

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Poke but don't pinch: risk assessment and venom metering in the western black widow spider, Latrodectus hesperus.
Nelsen DR
Animal behaviour, 89, 107-114 (2014)
Polysorbates 20 and 80 used in the formulation of protein biotherapeutics: structure and degradation pathways.
Kerwin BA
Journal of Pharmaceutical Sciences, 97(8), 2924-2935 (2008)
John Ong et al.
Scientific reports, 10(1), 12429-12429 (2020-07-28)
Albumin-based hydrogels are increasingly attractive in tissue engineering because they provide a xeno-free, biocompatible and potentially patient-specific platform for tissue engineering and drug delivery. The majority of research on albumin hydrogels has focused on bovine serum albumin (BSA), leaving human
View All Related Papers

Global Trade Item Number

SKUGTIN
P6585-10ML04061837602580
P6585-100ML04061837602573