How to make the Pro-environment and Glamorouness in Paint utilization? ---The Role of Methyl-β-Cyclodextrin solution used as Thickenersand Odormask in Paint industrial

I) Introduction to Methyl-β-cyclodextrin Aqueous Solution CAS:128446-36-6


Methyl-β-cyclodextrin (M-β-CD)is one of the most effective solubilizers for poorly soluble substances and an excellent stabilizer for many chemical compounds among known cyclodextrin derivatives. Due to its remarkable solubilizing and encapsulating properties, and its solubility in both water and organic solvents, M-β-CD is widely used in pharmaceuticals, food, pesticides, cosmetics, daily chemicals, chemical industries, textile dyeing and finishing, chromatography, and functional materials.

Thickeners are widely used in water-based paints, adhesives, textile printing pastes, inks, synthetic emulsions, or natural emulsions because they can improve the flow, application, and thixotropy of paints, addressing issues such as sagging and sedimentation.


Methyl-β-cyclodextrin can efficiently regulate the viscosity of thickener systems by complexing and decomplexing the hydrophobic groups of hydrophobically modified thickeners. This improves the pumpability and fillability of thickeners, simplifying production processes and reducing costs. Specifically, when used in polyurethane thickeners for paint, M-β-CD enhances thickening efficiency, making the paint more environmentally friendly and improving its overall performance.

While β-CD is effective for controlling the viscosity of low-solids-content thickeners, it has limitations with high-solids-content thickeners. Methyl-β-cyclodextrin, however, is a highly efficient viscosity inhibitor. Polyurethane thickeners require only 7% M-β-CD to reduce the system’s viscosity to 2000 mPa·s, meeting usage requirements. This efficiency surpasses that of 10% ethylene glycol.


Research indicates that M-β-CD can maintain the stability of color dispersions without the need for additional components or dispersants. It also improves the compatibility of incompatible surfactants, overcoming adverse water sensitivity and foaming issues. Moreover, it enhances the compatibility of colorants without the need for additional surfactants.

II) The benefits of using Methyl-β-cyclodextrin in thickeners are:

1. Gets rid of the need for organic solvents, making it more eco-friendly.

2. Boosts thickening efficiency.

3. Improves compatibility in paint systems, cutting down on mixing time.

4. Makes paints or coatings spread more smoothly and evenly.

5. Increases water resistance and reduces foam.

6. Helps to tone down the strong smell of paints or coatings.

7. Enhances color fastness and makes colors more vibrant.

In addition to these advantages, M-β-CD does not adversely affect the flow, sagging, leveling, gloss, color stability, or thermal aging stability of paints. Therefore, the application of Methyl-β-cyclodextrin in thickeners is a highly recommended and promotable product.


III) Specifications of High Quality Water Soluble Methyl-β-cyclodextrin Aqueous Solution CAS NO 128446-36-6





Colorless and clear liquid


Solid content



Molar substitution

1.6-1.9 (per anhydro glucose unit)


pH (5% solution)




NMT 1.0%


Volatile organic

NMT 0.1%


Kathon content

NMT 15ppm


Optical density

NMT 0.1%


Density (25℃)



Viscosity (dynamic at 25℃)

20-80 mPa.s




Wuhan Fortuna Chemical Co.,Ltd is a professional manufacturer which provide Methyl-β-cyclodextrin with good quality and best price, welcome to contact us to get COA/TDS/MSDS of Methyl-β-cyclodextrin.

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