CAS 135920-28-4 appears in our catalog under these names: 7-Azido-heptanoic acid, 7-Azidoheptanoic acid 95%, 7-Azidoheptanoic acid, 97%, 97%. Offered by: Biosynth, Ambeed, Chemat. Available pack sizes: 250mg, 500mg, 1000mg, 2000mg, 5000mg, 100mg, 1g, 5g.