Atenolol belongs to a class of drugs known as beta blockers. It works by blocking the action of certain natural chemicals in your body, such as epinephrine, on the heart and blood vessels. This effect lowers the heart rate, blood pressure, and strain on the heart.
Brompheniramine (Bromfed, Dimetapp, Bromfenex, Dimetane, BPN, Lodrane), commonly marketed as its salt brompheniramine maleate, is an antihistamine drug of the propylamine (alkylamine) class.rompheniramine, 3-(p-bromophenyl)-3-(2-pyridyl)propyldimethylamine, is an analog of chlorpheniramine. The only difference is that the chlorine atom in the benzene ring is replaced with a bromine atom. It is also synthesized in an analogous manner.
Under normal conditions, Pentane is a colourless liquid, which has a characteristic smell. It evaporates easily at room temperature and boils at 36 degrees celsius. Pentane is highly flammable and mixtures of the vapour with air can be explosive. Pentane does not dissolve in water, but does mix with organic (carbon-containing) solvents. Pentane is one of a group of substances known as the volatile organic compounds (VOCs). What is it used for? Pentane is an ingredient of petrol fuel for vehicles. It is also used in the chemical industry as a solvent and in the production of other chemicals. Pentane is used to fill plastic foams, replacing the use of Hydofluorocarbons (HFCs) and Hydrochlorofluorocarbons (HCFCs) as they are phased out because of their damaging effects on the ozone layer.