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§ 721.4080 MNNG (N-methyl-N′-nitro-N-nitrosoguanidine).
(a) Chemical substance and significant new use subject to reporting. (1) The chemical substance MNNG (N-methyl-N′-nitro-N-nitrosoguanidine) (CAS No. 70-25-7) is subject to reporting under this section for the significant new use described in paragraph (a)(2) of this section.