Cholesterol has a tetracyclic ring structure & has the chemical formula C27H46O. Cholesterol contributes to cell membrane fluidity, permeability & stability, properties limited to relatively inflexible plant cell walls.
Cholesterol is an essential precursor or intermediate compound mammals use to produce steroid hormones, vitamin D and bile acids. The latter are produced in the liver and are important for the absorption of fat-soluble vitamins A, D, E and K in the small intestine.
Compare cholesterol's structure to estradiol, progesterone, testosterone & cortisone.
Indigo Instruments has maintained a substantial inventory of genuine Molymod atoms & bonds for 30+ years. These parts are compatible with every molecular model kit we have sold. This level of quality may seem expensive but no parts support from other vendors costs even more.