Octadecanoic acidOctadecanoic acid
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Octadecanoic acid

Stearic acid; C18:0 Fatty acid

Stearic acid is the second most abundant fatty acid in nature and among the most abundant fatty acids in most animals as well as in some plants and bacteria. It has many biological functions as well as many pharmaceutical and industrial uses. In gangliosides it is especially prevalent, comprising as much as 80% of the total fatty acids present. A large amount of stearic acid is used as the precursor for oleic acid via the delta-9-desaturase enzyme. It has recently been proposed that stearic acid causes a lower risk of cardiovascular disease than other saturated fatty acids.1 Stearic acid has been extensively used to aid in the delivery mechanisms of various therapeutical agents.2,3
Cat# Size Price Qty Buy
1020 1 gram £70.31

Additional Information

Property Value or Rating
Product Size 1 gram
Manufacturer Matreya, LLC
Empirical Formula C18H36O2
CAS# 57-11-4
Formula Weight 284
Solvent none
Source natural
Purity 99%
Analytical Methods GC, TLC
Natural Source plant
Solubility chloroform, ethanol, ethyl ether
Physical Appearance solid
Storage room temperature
Dry Ice No
Hazardous No

1. J. Hunter, J. Zhang, and P. Kris-Etherton “Cardiovascular disease risk of dietary stearic acid compared with trans, other saturated, and unsaturated fatty acids: a systematic review” Am J Clin Nutr, vol. 91 pp. 46-63, 2010 
2. H. Uludag et al. “Formulation and Delivery of siRNA by Oleic Acid and Stearic Acid Modified Polyethylenimine” Mol. Pharmaceuticals, vol. 6 pp. 121- 133, 2009 
3.Y-Z. Du et al “Shell cross-linked stearic acid grafted chitosan oligosaccharide self-aggregated micelles for controlled release of paclitaxel” Colloids and Surfaces B: Biointerfaces, vol. 50 pp. 97-103, 2006

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