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 Leucovorin. Nitrosamines are part of a broader class of compounds known as N-nitroso compounds. Leucovorin, also known as folinic acid, is a medication that serves as a form of folic acid. It is often used in cancer treatment as a rescue therapy to mitigate the toxic effects of methotrexate, a chemotherapy drug that inhibits dihydrofolate reductase. Leucovorin helps restore depleted levels of folate, supporting normal cellular functions and preventing the harmful effects of methotrexate on healthy cells. Additionally, leucovorin may be utilized in the treatment of certain types of anemia associated with folic acid deficiency. Buy high quality N-Nitroso leucovorin 1 from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of N-Nitroso leucovorin 1.