C3H5N3O9dr

C3H5N3O9dr is not a standard chemical name. It closely resembles the recognized chemical formula for nitroglycerin, C3H5N3O9, with an additional non-nomenclature suffix "dr" that does not form part of accepted IUPAC or database identifiers. In most references, the compound is identified as nitroglycerin or glyceryl trinitrate.

Nitroglycerin, or glyceryl trinitrate, is an oily, colorless to pale yellow liquid at room temperature. It is a powerful explosive known for its high energy content and sensitivity to shock, friction, and heat. It is also used pharmaceutically as a vasodilator.

Chemically, nitroglycerin has the molecular formula C3H5N3O9 and a molecular weight of about 227.09 g/mol. It consists of a glycerol backbone with three nitrate ester groups. The compound is highly reactive and can decompose rapidly under improper storage, releasing nitrogen oxides and oxygen.

Industrial history: Nitroglycerin was first prepared in the 1840s by Ascanio Sobrero. It was stabilized and popularized for industrial use by Alfred Nobel, who developed dynamite by absorbing the liquid into an absorbent material to reduce shock sensitivity. Modern manufacturing emphasizes safe handling and stabilization.

Applications and safety: As an explosive, nitroglycerin has played a key role in high-energy materials, though pure nitroglycerin is often stabilized or used in formulations with other components. Medically, nitroglycerin is used to treat angina and heart failure through sublingual tablets, sprays, or IV administration, acting by releasing nitric oxide to dilate blood vessels. It is strictly regulated due to its explosive hazard and medical potency.

See also: glyceryl trinitrate; nitroglycerin; nitrate esters; explosive materials.