(3S)-trans-3-[(tert-butoxycarbonyl)amino]-4-methyl-2-oxoazetidine-1-sulfonic acid tetra-n-butylammonium salt

(3S)-trans-3-[(tert-butoxycarbonyl)amino]-4-methyl-2-oxoazetidine-1-sulfonic acid tetra-n-butylammonium salt · CAS 80082-60-6