Explore esters with the 68845NV molecular model set. Learn esterification, hydrolysis, and biological roles of esters in fats and metabolism.
Understanding esters is essential for both organic chemistry and biochemistry students. Our ester models accurately represent the ester linkage, highlighting its bonding and reactivity compared to related groups like carboxylic acids and ethers. These models are ideal for visualising key reactions such as esterification, acid and base-catalyzed hydrolysis, and exploring the role of esters in biological molecules such as triglycerides, lipids, and fatty acid metabolism.
The definition of an ester linkage is a covalent bond between a carboxylic acid and an alcohol. This reaction is known as esterification & releases a water molecule. The formula for the COOR functional group is (-C(=O)-O-) or (-COOR).
Esters are particularly important in biology and are found in compounds as diverse as triglycerides, DNA & pheromones. Ester linkages hold lipids (fats and oils) together and connect fatty acid chains to a glycerol backbone.
The divalent oxygen atoms in the Indigo® 68845V model set have easily recognised single C-H or double C=O bonds that stand out in esters & make it easier to learn IUPAC nomenclature compared to Darling models.
| Feature | Benefit |
|---|---|
| Accurate representation of the ester linkage (carbonyl adjacent to an ether oxygen) | Helps students visualize the unique bonding and reactivity of esters. |
| Color-coded atoms and clear bond angles | Clarifies structural differences between esters, acids, and ethers. |
| Modular design for easy conversion to acids or alcohols | Facilitates understanding of esterification and hydrolysis reactions. |
| Durable connectors suitable for repeated handling | Supports long-term use in classroom and lab demonstrations. |
| Cross-disciplinary applications | Links chemistry concepts to biological roles in fats, oils, and metabolism. |
Indigo Instruments has stocked genuine Cochranes of Oxford molecular model parts for 30+ years. Customize or replenish any model set/kit we have ever sold!
| Compound | Chemistry Focus | Biology / Medicine / Nursing Focus |
|---|---|---|
| Ethyl acetate | Classic example of Fischer esterification and a common organic solvent; volatility and polarity make it useful in extractions and chromatography. | Occurs naturally in some fruits and contributes to aroma; useful example when discussing flavor chemistry and food analysis. |
| Methyl salicylate | Aromatic ester that illustrates ester hydrolysis and aromatic chemistry; useful for demonstrating base/acid-catalyzed cleavage. | Used in topical analgesics (wintergreen), relevant to pharmacology and toxicology; also a plant-produced signaling/defense compound. |
| Isoamyl acetate | Branched-chain ester famous for its banana-like odor; demonstrates volatility, ester synthesis, and functional-group naming. | Common food/flavoring compound—good for sensory-based labs and illustrating biochemical production of aroma compounds. |
| Triglycerides (glycerol triesters) | Triester formation from glycerol and fatty acids; excellent for teaching saponification, hydrophobic interactions, and chain-length effects. | Primary form of energy storage in organisms; central to nutrition, digestion (lipase activity), and clinical topics like lipid disorders. |
| Aspirin (acetylsalicylic acid) | Illustrates acetylation chemistry and an ester linkage in a pharmaceutical context; hydrolysis converts it to salicylic acid. | Widely used analgesic/antiplatelet agent relevant to pharmacology, dosing, metabolism, and nursing care considerations (e.g., bleeding risk). |
Use the 68845NV Organic Chemistry Model Set with the Indigo® Instruments 3D Molecular Model Builder to view hundreds of ester structures & the parts needed to build them.
I've had consistently great service from this company. Our students seem to really appreciate the reasonable price. In the years that we've used this product, not one has been returned due to defects.
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The easiest way to view & then build esters with this model set is to use our 3D Molecular Model Builder in Orbit (basic) style. Just enter the compound name, hit the Build & Show Purchase options button & an image of the molecule & parts needed will appear. Follow the same steps but choose Orbit (flexible) to view Esters; Advanced Ochem set.