N-Nitroso-N-methylurea
N-Nitroso-N-methylurea (NMU) is a highly potent carcinogen widely used in biochemical research. It is a derivative of urea, with a nitroso group and a methyl group replacing two hydrogen atoms.
Chemical Properties[edit | edit source]
NMU is a yellow, crystalline solid with a melting point of 89-92°C. It is soluble in water and most organic solvents. It is highly reactive, decomposing in the presence of light, heat, or strong acids to release nitric oxide and methylamine.
Biological Effects[edit | edit source]
NMU is a potent carcinogen, capable of inducing tumors in a variety of tissues in many species. It acts by alkylating DNA, leading to the formation of O6-methylguanine lesions, which can cause mutations if not repaired by the DNA repair machinery of the cell.
Use in Research[edit | edit source]
NMU is widely used in biochemical research to induce tumors in experimental animals, particularly rats and mice. It is often used in studies of carcinogenesis, mutagenesis, and DNA repair.
Safety[edit | edit source]
Due to its high carcinogenic potency, NMU must be handled with extreme care. It is classified as a Group 1 carcinogen by the International Agency for Research on Cancer (IARC), meaning it is known to cause cancer in humans.
See Also[edit | edit source]
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