CAS 1923-70-2 appears in our catalog under these names: Tetrabutylammonium Perchlorate, Tetra-n-butylammonium perchlorate, electrochemical grade , Tetra-n-butylammonium perchlorate, 99+% , Tetrabutylammonium Perchlorate, >98.0%(T), Tetrabutylammonium perchlorate, 98%. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), TCI, Thermo Scientific (Acros), Chemat. Available pack sizes: 100g, 25g, 500g, 10g, 50g, 250g, 2.5g, 50 g.