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greener alternative

non-ionic detergent

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TWEEN® 60, Polyethylene glycol sorbitan monostearate, Polyoxyethylene sorbitan monostearate
CAS Number:
MDL number:

Quality Level

mol wt

estimated mol wt 1309


stearic acid, 40-60%
total stearic and palmitic acid, ≥90%

greener alternative product characteristics

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


27 mg/L


1.044 g/mL at 25 °C (lit.)



greener alternative category



InChI key


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General description

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 60 is a niosome.


Polyethylene glycol sorbitan monostearate, or TWEEN 60, has been used in a study to assess encapsulation of functional lipophilic components in surfactant-based colloidal delivery systems. It has also been used in a study to investigate doxorubicin loaded magneto-niosomes for targeted drug delivery.

Features and Benefits

  • 100 % Renewable
  • 100 % Bio-based
  • Certified to the USDA BioPreferred Program
  • Lower carbon footprint than petrochemical-based versions

Legal Information

TWEEN is a registered trademark of Croda International PLC

Storage Class Code

10 - Combustible liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Lorena Tavano et al.
Colloids and surfaces. B, Biointerfaces, 102, 803-807 (2012-10-31)
In chemotherapy the magnetic drug targeting to a specific organ or tissue is proposed on the assumption that magnetic fields are harmless to biological systems. In this light we have vehiculated doxorubicin as model drug by novel magneto-niosomes in order
Khalid Ziani et al.
Food chemistry, 134(2), 1106-1112 (2012-10-31)
The fabrication and stability of surfactant-based colloidal delivery systems (microemulsions and emulsions) suitable for encapsulation of lipophilic active agents (vitamins and flavours) was investigated. An emulsion titration method was used to study the influence of surfactant type (Tween 20, 60
Physicochemical properties and skin permeation of [TM="Span"] 60/Tween 60 niosomes of ellagic acid
Burapacheep, V., et al.
International Journal of Pharmaceutics, 432, 9-9 (2012)
Ray F David et al.
Fungal genetics and biology : FG & B, 96, 25-32 (2016-10-22)
The plant pathogenic ascomycete Fusarium graminearum produces perithecia on corn and small grain residues. These perithecia forcibly discharge ascospores into the atmosphere. Little is known about the relationship among the strength of the perithecial wall, the age of the perithecium
Rafaela C Sartore et al.
PloS one, 6(6), e20667-e20667 (2011-06-16)
The existence of loss and gain of chromosomes, known as aneuploidy, has been previously described within the central nervous system. During development, at least one-third of neural progenitor cells (NPCs) are aneuploid. Notably, aneuploid NPCs may survive and functionally integrate

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