CAS 207300-90-1 appears in our catalog under these names: SODIUM 1-HEPTANESULFONATE MONOHYDRATE, &, Sodium 1-heptanesulfonate monohydrate, 99% , Sodium 1-heptanesulfonate monohydrate 98%, 1-HEPTANESULFONIC ACID SODIUM SALT &, 1-HEPTANESULFONIC ACID SODIUM SALT. Offered by: Sigma-Aldrich, Thermo Scientific (Alfa Aesar), Ambeed, Chemat, Thermo Scientific (Acros). Available pack sizes: 10G, 250G, 50G, 5g, 25g, 100g, 500g, 75g.