Skip to Content
Merck

STS0201

ECO TWEEN® 40

greener alternative

viscous liquid

Synonym(s):

TWEEN® 40, Polyoxyethylenesorbitan monopalmitate

Slide 1 of 2
Sign In to View Organizational & Contract Pricing.

Select a Size

500 ML

CZK 2,450.00

1 L

CZK 3,225.00

CZK 2,450.00

Please contact Customer Service for Availability
Request a Bulk Order

About This Item

CAS Number:
9005-66-7
UNSPSC Code:
12161902
NACRES:
NA.28
MDL number:
MFCD00165345

Key Documents

View All Documentation

Skip To

Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

ECO TWEEN® 40, viscous liquid

SMILES string

O1C(C(C(C1)OCCO)OCCO)C(OCCO)COCCOC(=O)CCCCCCCCCCC

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

description

non-ionic

assay

~90.0% (GC)

form

viscous liquid

mol wt

estimated mol wt 1277

composition

Palmitic acid, ~90.0% (balance primarily stearic acid)

greener alternative product characteristics

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

sustainability

Greener Alternative Product

CMC

0.027 (20-25°C)

solubility

water: 100 mg/mL, clear to slightly hazy, faintly yellow

HLB

15.6

greener alternative category

, Aligned

Quality Level

200

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
STS0204STS0200STS0205
ECO TWEEN® 40 viscous liquid

Sigma-Aldrich

STS0201

ECO TWEEN® 40

ECO TWEEN® 80 viscous liquid

Sigma-Aldrich

STS0204

ECO TWEEN® 80

ECO TWEEN® 20 viscous liquid

Sigma-Aldrich

STS0200

ECO TWEEN® 20

ECO TWEEN® 85

Sigma-Aldrich

STS0205

ECO TWEEN® 85

form

viscous liquid

form

viscous liquid

form

viscous liquid

form

viscous liquid

assay

~90.0% (GC)

assay

≥58%

assay

≥40%

assay

≥50%

mol wt

estimated mol wt 1277

mol wt

micellar avg mol wt 79.000, average mol wt 1310

mol wt

~1228

mol wt

-

HLB

15.6

HLB

15.0

HLB

16.7

HLB

11.0

solubility

water: 100 mg/mL, clear to slightly hazy, faintly yellow

solubility

water: 100 mg/mL, clear to slightly hazy, faintly yellow

solubility

water: 100 mg/mL, clear, faintly yellow to yellow

solubility

-

CMC

0.027 (20-25°C)

CMC

0.012 mM (20-25°C)

CMC

0.06 mM (20-25°C)

CMC

-

Application

Non-ionic detergent used for cell lysis, nuclei isolation and cell fractionation.
Polyoxyethylenesorbitan monopalmitate, or Tween® 40, has been used in a study to assess the determination of iodide in urine based on a chemiluminescence system. [1] It has also been used in a study to investigate the delivery of astaxanthin and canthaxanthin to HepG2 cells. [2]

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

General description

ECO Tween® 40, also known as Polyoxyethylenesorbitan monopalmitate, is a bio-based, nonionic detergent manufactured from natural fatty acid (palmitic 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, 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".

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

WGK 1

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCP6605

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

Determination of iodide in urine based on chemiluminescence system of cerium (IV)-tween 40-iodide
Li and Xie
Journal of Luminescence, 132, 5-5 (2012)
Christine Boesch-Saadatmandi et al.
Cytotechnology, 63(1), 89-97 (2010-12-15)
The present investigation aimed to compare fetal calf serum (FCS) and Tween 40 with the commonly employed tetrahydrofuran (THF) with respect to cytotoxicity, stability of the solubilized carotenoids, and uptake and accumulation of the xanthophylls astaxanthin (AX) and canthaxanthin (CX)
J G Culvenor et al.
Journal of cellular biochemistry, 20(2), 127-138 (1982-01-01)
Plasma membrane was isolated from the mouse T lymphoma cell line WEHI-22 using four different methods of cell disruption followed by centrifugal fractionation. Disruption by nitrogen cavitation or by shearing with a cell pump produced plasma membrane vesicles of similar
Branka Rozman et al.
Drug delivery, 14(4), 235-245 (2007-05-15)
An interesting strategy for protecting skin from excessive exposure to free radicals is to support the skin endogenous antioxidant system. As the balance between different skin antioxidants is very important, a combined therapy using at least two antioxidants is desirable.
Matija Tomsic et al.
International journal of pharmaceutics, 327(1-2), 170-177 (2006-08-26)
Small-angle X-ray scattering technique has been used to study the structural properties of the quaternary microemulsion Tween 40/Imwitor 308/isopropyl myristate/water and of five-component system obtained by the addition of the drug ketoprofen to the original quaternary system. The results enlighten
View All Related Papers

Questions

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service