CAS 7440-16-6 appears in our catalog under these names: Rhodium - Rh @ 1000 µg/mL in 20% HCl, Rhodium Internal Standard: Rh @ 10 µg/mL in 2% HCl, Rhodium Standard: Rh @ 10 µg/mL in 2% HCl, Rhodium Standard: Rh @ 1000 µg/mL in 20% HCl, Rhodium (Activated Carbon). Offered by: VHG, TRC, GLPBio, Chemat, Thermo Scientific (Alfa Aesar). Available pack sizes: 50ml, 100ml, 500ml, 250ml, 1g, 2,5g, 25g, 10g.