Ester Functional Group Chemical Structure
SKU: 68827W
Esters have the functional group -COO- where one of the oxygens is doubly bonded to a carbon which is in turn singly bonded to another carbon & another oxygen. Esters are biologically important & occur in compounds such as triglycerides and as phosphoesters which form the backbone of DNA. The 68827W student set includes 24 sp3 carbons and can build multiple ester models all at once for comparison including those shown in the image: methyl methanoate (right), methyl acetate (left), ethyl acetate (top).
Indigo Instruments has maintained a substantial inventory of genuine Cochranes of Oxford (Orbit) atoms & bonds for over 30+ years (scroll down to see "Skeletal (Orbit/Minit). These parts are compatible with every molecular model set we have sold since day 1. This level of quality may appear expensive but no parts support from other vendors costs even more.
Thanks for the feedback. The rigid bonds are great for chair boat flips but eventually wear out with repeated use. The clear bonds are tougher to work with at first but eventually loosen up enough to make them easier to use. They will last over many more uses which is good if you are taking chemistry as a degree.