[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an inorganic calcium salt having silicate as the counterion. It has a role as a food anticaking agent, an antacid and a flame retardant. It contains a silicate(4-)."}, {"from": "gpt", "value": "[O-1][Si][Branch1][C][O-1][Branch1][C][O-1][O-1].[Ca+2]"}]