stereocenter. (organic chemistry). A (chiral) carbon atom that has four different substituents bonded to it.Also known as a stereogenic atom.1  Facebook.2  Twitter.tereocenter. (organic chemistry). A (chiral) carbon atom that has four different substituents bonded to it. Also known as a stereogenic atom. 1  Facebook. 2  Twitter.
Best Answer: Most self clean cycles take 4 hrs.The oven is gradually heated up to 950 degrees F which takes up to 1 hr and after the 4 hrs is up it takes some time ...
On the otherhand you can mask it with products from headshops long enough to take a UA and come up clean but after that you are dirty again. A hardcore smoker it takes 3 months to fully leave your system for an occasional smoker 2 weeks to a month.