Nitrosamines can be formed through various chemical processes, including the reaction between nitrites and secondary amines in certain conditions. It is a N-Nitroso of secondary amine present in Hydralazine. Nitrosamines are part of a broader class of compounds known as N-nitroso compounds. Hydralazine is a medication used to treat high blood pressure (hypertension) and certain heart conditions. Hydralazine is belongs to a class of drugs known as vasodilators which work by relaxing and widening blood vessels thus reducing the resistance to blood flow and lowering blood pressure. Hydralazine is typically used when other antihypertensive medications are not effective or are contraindicated. Buy high quality N-Nitroso Hydralazine from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of N-Nitroso Hydralazine.