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Cayman is a manufacturer, supplier, and vendor of biochemical reagents, assay kits, forensic chemistry standards, antibodies, and proteins for scientific research. Analytical testing services and custom synthesis are also available.

Cayman Chemical Company · 1180 East Ellsworth Road · Ann Arbor, Michigan 48108 · USA

Toll Free: (800) 364-9897 (USA and Canada Only) · Fax: (734) 971-3640

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Stearic Acid ethyl ester

Cayman Chemical Item Number 10008196

NSC 8919; Octadecoanoic acid ethyl ester; Ethyl Octadecanoate; Ethyl Stearate (CAS 111-61-5)

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Stearic acid is a saturated fatty acid commonly found in animal and vegetable fats that is frequently used in cosmetics, candles, soaps, plastics, oil pastels, and for softening rubber. Stearic acid ethyl ester (ethyl stearate) is the neutral, more lipid soluble form of the free acid. It perturbs the cell cycle and induces apoptosis in HepG2 cells and is a marker of excessive alcohol consumption that can be isolated from an individual’s hair.1,2

1. Aydin, A., Celik, H.A., Deveci, R., et al. Induction of apoptosis by fatty acid ethyl esters in HepG2 cells. Food Chem Toxicol 43 139-145 (2005).

2. Hartwig, S., Auwärter, V., and Pragst, F. Fatty acid ethyl esters in scalp, public, axillary, beard and body hair as markers for alcohol misuse. Alcohol Alcohol 38(2) 163-167 (2003).

  • NSC 8919
  • Octadecoanoic acid ethyl ester
  • Ethyl Octadecanoate
  • Ethyl Stearate
Formal Name octadecanoic acid,​ ethyl ester
CAS Number 111-61-5
Molecular Formula C20H40O2
Formula Weight 312.5
Formulation A solution in ethanol
Purity >98%
Stability 1 year
Storage -20°C
Shipping Wet ice in continental US; may vary elsewhere
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Stearic Acid ethyl ester is available in the following screening library:

Size Price Quantity Subtotal
100 mg $10.00 $0.00
500 mg $25.00 $0.00
1 g $30.00 $0.00
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Cart Total $0.00

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Pricing updated 2015-02-26. Prices are subject to change without notice.

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Warning This product is not for human or veterinary use.

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Cayman Chemical Company regularly evaluates our shipping methods to ensure product stability is maintained and our corporate environmental impact is minimized. Products selected for review are evaluated and shipping methods are certified by our Scientists. While occasionally our method of shipping a product may change, rest assured the shipping conditions on all Cayman Chemical products have been reviewed and validated.

Upon receipt, it is important to check the storage requirements of your products and place them at the appropriate temperature. Products shipped without ice may require frozen storage for long term stability.

Cayman Chemical was formed over thirty years ago by demonstrating the value of naturally growing gorgonian corals as a renewable, economically viable source of prostaglandins. Today we operate our business knowing that we owe our start to the renewable resources our environment had provided. As Cayman Chemical continues to grow we consistently evaluate our business processes to ensure we are operating at the highest environmental standards.

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