Explore alkene molecular models to understand double bond geometry, cis/trans isomerism, and reactivity. Ideal for chemistry, biology, and MCAT preparation.
Alkenes are unsaturated hydrocarbons with at least one carbon–carbon double bond (C=C) which changes molecular shape, reactivity, & physical properties. Alkenes are central to understanding addition reactions, Markovnikov’s rule, and polymerization. For biochemistry and biology students, alkenes appear in natural products, metabolic intermediates, and lipid structures, influencing membrane fluidity and signalling pathways. A hands-on alkene molecular model lets students visualize planar double bonds, compare cis/trans isomers, and see why restricted rotation around the C=C bond matters in biological function and industrial applications alike.
Indigo Instruments has held inventory of genuine Cochranes of Oxford (Orbit) atoms & bonds for 30+ years. These parts are compatible with every molecular model set we have sold since day 1. This quality may appear expensive but no parts support from other vendors costs even more.
Simple example of a C=C double bond; used to introduce concepts of π-bonding, planar geometry, and addition reactions.
Plant hormone regulating fruit ripening and senescence; relevance in agriculture and food storage.
Propene
Illustrates regioselectivity in addition reactions (Markovnikov’s rule); industrial monomer for polypropylene production.
Indirect relevance through plastics used in medical devices, syringes, and sterile packaging.
1-Butene / 2-Butene
Demonstrates structural (positional) isomerism and cis/trans stereoisomerism in alkenes.
Highlights stereoisomerism’s role in drug design, molecular recognition, and biological activity.
Isoprene (2-Methyl-1,3-butadiene)
Key monomer in natural rubber; demonstrates conjugated alkene reactivity and stability.
Building block in biosynthesis of terpenes and steroids; importance in natural product chemistry and pharmacology.
β-Carotene
Example of an extended conjugated alkene system; absorbs visible light leading to coloration.
Precursor to vitamin A; crucial for vision and immune system health.
The 68845NV student set can build a variety of simple linear alkenes including: ethene (C2H4), propene (C3H6), butene (C4H8), pentene (C5H10), hexene (C6H12), heptene (C7H14), octene (C8H16) up to nonene (C9H18) & their isomers. Longer alkenes of 9 to 20 carbons are listed below but require extra atoms to build them.
Longer, straight chain alkenes with 9 to 20 carbons include: decene (C10H20), undecene (C11H22), dodecene (C12H24), tridecene (C13H26), tetradecene (C14H28), pentadecene (C15H30), hexadecene (C16H32, heptadecene (C17H34), octadecene (C18H36), nonadecene (C19H38). Enter these compounds into the Indigo® Instruments 3D Molecular Model Builder (use Orbit Basic Style) to determine how many extra bonds & atoms you will need to build them.
Alkenes with 2 double bonds are called dienes of which there are 3 types, cumulated, conjugated & isolated. These consist of 2 pairs of double bonded carbon atoms that are adjacent, separated by a single bond or by 2 single bonds are more. Examples of these are 2,3-pentadiene, 1,3 pentadiene & 1,4 pentadiene respectively.
This model kit is great for improving knowledge of molecular structures for organic chemistry.
— Jan
2020-05-31
I bought the product for a university class and it met expectations. Great service and fast shipping.
— Miri
— Indigo: Thank you for the review. Good luck this term.
2019-09-23
Great product, fast shipping, excellent customer service!
— Courtney
2019-08-15
Bought two of these because I prefer them to the one used at the university. Easy to use and has a good flexibility.
— Thierry
2018-04-16
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.
— Becki
— Indigo:
Considering how many of these we sell to schools every year, that is high praise indeed. Thanks letting us know.
