Date published: 2026-9-10

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Isostearic Acid (=2,2,4,8,10,10-Hexamethylundecane-5-carboxylic Acid) (CAS 54680-48-7)

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Alternate Names:
2-(4,4-Dimethyl-2-pentyl)-5,7,7-trimethyl-n-octanoic Acid; 2,2,4,8,10,10-Hexamethylundecane-5-carboxylic Acid
CAS Number:
54680-48-7
Molecular Weight:
284.48
Molecular Formula:
C18H36O2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Isostearic Acid, known as 2,2,4,8,10,10-Hexamethylundecane-5-carboxylic Acid, is a branched-chain fatty acid that sees considerable use in chemical research due to its unique properties. In the field of materials science, Isostearic Acid (=2,2,4,8,10,10-Hexamethylundecane-5-carboxylic Acid) is investigated for its ability to act as a plasticizer, improving the flexibility and durability of polymers. In surface chemistry, it is studied for its surfactant qualities, which make it a candidate for modifying surface tensions in various formulations. Its role in the synthesis of esters, particularly those used in industrial lubricants, is another area of active research, as it contributes to the thermal stability and hydrophobicity of the final product. Furthermore, the compound′s efficacy in aiding the dispersion of pigments and other particles is explored in the production of inks, coatings, and cosmetics. The branching of its carbon chain is a point of interest when examining its oxidative stability compared to linear fatty acids.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Isostearic Acid (=2,2,4,8,10,10-Hexamethylundecane-5-carboxylic Acid), 25 g

sc-484732
25 g
$51.00