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在目前已肯定的和尚未肯定的近2000种化学致癌物中,在环境中广泛存在的致癌性较强的,就是被通称为亚硝胺的一类有机化合物。通常说的亚硝胺有N—亚硝胺及N—亚硝酰胺。它们的化学通式为:
Among the nearly 2,000 kinds of chemical carcinogens that have been affirmed and not yet affirmed, a group of organic compounds commonly known as nitrosamines, which are widely carcinogenic in the environment. Nitrosamines are commonly referred to as N-nitrosamines and N-nitrosamides. Their chemical formula is: