CAS 7791-18-6 appears in our catalog under these names: MAGNESIUM CHLORIDE-6-HYDRATE MAX. 0., MAGNESIUM CHLORIDE-6-HYDRATE MAX. 0., Magnesium chloride hexahydrate, Magnesium chloride hexahydrate, 99.999 %, Magnesium chloride, hexahydrate/ 99.995%. Offered by: Sigma-Aldrich, Chemat Brand, TRC, Chemat, GLPBio. Available pack sizes: 1KG, 2.5KG, 6X1KG, on request, 25g, 50g, 5g, 500g.