has role independent continuant N-acylglucosamine metabolite antimicrobial agent antineoplastic agent DNA synthesis inhibitor N-nitrosoureas streptozocin An <em>N</em>-nitrosourea that is an antibiotic produced by <em>Streptomyces achromogenes</em>. It is used as an antineoplastic agent and to induce diabetes in experimental animals. CHEBI:9288