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STS0200

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ECO TWEEN® 20

greener alternative

viscous liquid

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Synonym(s):
TWEEN® 20, Polyethylene glycol sorbitan monolaurate, Polyoxyethylenesorbitan monolaurate
CAS Number:
MDL number:

description

non-ionic

Quality Level

form

viscous liquid

mol wt

~1228

composition

lauric acid, ≥40% (balance primarily myristic, palmitic, and stearic acids)

greener alternative product characteristics

Use of Renewable Feedstocks
Design for Degradation
Learn more about the Principles of Green Chemistry.

concentration

≥40.0% (GC)

impurities

≤3.0% water

refractive index

n20/D 1.468 (lit.)

CMC

0.06 mM (20-25°C)

acid number

≤2.2 mg KOH/g

hydroxyl value

96‑108 mg KOH/g

transition temp

cloud point 76 °C

density

1.095 g/mL at 25 °C (lit.)

HLB

16.7

greener alternative category

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

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This Item
P1379P9416P7949
ECO TWEEN® 20 viscous liquid

STS0200

ECO TWEEN® 20

-
TWEEN® 20 viscous liquid

P1379

TWEEN® 20

-
TWEEN® 20 for molecular biology, viscous liquid

P9416

TWEEN® 20

-
TWEEN® 20 BioXtra, viscous liquid

P7949

TWEEN® 20

Premium Grade
CMC

0.06 mM (20-25°C)

CMC

0.06 mM (20-25°C)

CMC

60 mg/L

CMC

0.06 mM (20-25°C)

description

non-ionic

description

non-ionic

description

non-ionic

description

non-ionic

Quality Level

200

Quality Level

300

Quality Level

300

Quality Level

300

density

1.095 g/mL at 25 °C (lit.)

density

1.095 g/mL at 25 °C (lit.)

density

1.095 g/mL at 25 °C (lit.)

density

1.095 g/mL at 25 °C (lit.)

HLB

16.7

HLB

16.7

HLB

-

HLB

16.7

General description

ECO TWEEN® 20, also known as Polyoxyethylenesorbitan monolaurate, is a bio-based, nonionic detergent manufactured from a natural fatty acid. This surfactant, derived from natural sources, provides various functional advantages, such as detergency, emulsification, and wetting. Its versatility makes it well-suited for a variety of applications in biochemical and biological research, with common uses including cell lysis, protein extraction, nuclei isolation and cell fractionation.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. This product is a biobased surfactant and is aligned with the 7th principle of Green Chemistry "Use of Renewable Feedstocks" and the 10th principle "Design for Degradation".

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 as a component of:
  • washing buffer and blocking buffer in Western blotting
  • blocking buffer in immunohistochemistry
  • washing buffer in ELISA (enzyme linked immunosorbent assay)
  • reaction mixture in PCR (polymerase chain reaction)
TWEEN 20 is a nonionic detergent widely used in biochemical applications. It has been used as an emulsifying agent for the preparation of stable oil-in-water emulsions. TWEEN 20 has been used in pre-extraction of membranes to remove peripheral proteins (used at 2% for extraction of membrane-bound proteins).
TWEEN 20 has been used as a blocking agent for membrane based immunoassays at a typical concentration of 0.05%. TWEEN 20 can be used for lysing mammalian cells at a concentration of 0.005 to 0.5%.
Non-ionic detergent

Features and Benefits

  • 100 % Renewable
  • 100 % Bio-based
  • Certified to the USDA BioPreferred Program
  • Lower carbon footprint than petrochemical-based versions
  • High-purity chemical suitable for a wide variety of research applications

Preparation Note

TWEEN 20 is miscible in water (100mg/mL), yielding a clear, yellow solution. It is also miscible with alcohol, dioxane, and ethyl acetate. TWEEN 20 is insoluble in liquid paraffin and fixed oils.

Other Notes

For additional information on our range of Biochemicals, please complete this form.

Legal Information

ECO TWEEN is a registered trademark of Croda Inc.
TWEEN is a registered trademark of Croda International PLC

Storage Class

10 - Combustible liquids

wgk_germany

WGK 1

flash_point_f

527.0 °F - Pensky-Martens closed cup

flash_point_c

275 °C - Pensky-Martens closed cup


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Gene expression and immune response kinetics using electroporation-mediated DNA delivery to muscle.
Gr?nevik E et al
The journal of gene medicine, 7(2), 218-227 (2005)
Polysorbates 20 and 80 used in the formulation of protein biotherapeutics: structure and degradation pathways.
Kerwin BA
J. Pharm. Pharm. Sci., 97(8), 2924-2935 (2008)
Use of tRNA consensus primers to indicate subgroups of Pseudomonas solanacearum by polymerase chain reaction amplification.
Seal SE et al
Applied and Environmental Microbiology, 58(11), 3759-3761 (1992)
Ethylene and carbon dioxide production by developing strawberries show a correlative pattern that is indicative of ripening climacteric fruit.
Lannetta PM et al
Physiologia Plantarum, 127.2, 247-259 (2006)
Human hypoblast formation is not dependent on FGF signalling.
Roode M et al
Developmental Biology, 361(2), 358-363 (2012)

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