As per my previous E-mail Sumalchlro 50 is Aluminum chlorohydrate and can be described using the 12042-91-0 CAS number which is specific to only aluminum chlorohydrate. It may also be described using the 1327-41-9 which is the CAS number assigned for polyaluminum chloride in general. The 1327-41-9 covers a wide range of materials including ACH. Again Sumachlor 50 is aluminum chlorohydrate and can use the 12042-91-0 CAS number