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 ErlotinibĀ . Nitrosamines are part of a broader class of compounds known as N-nitroso compounds. Buy high quality N-Nitroso Erlotinib from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of N-Nitroso Erlotinib