[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a compound of beryllium (+2 oxidation state) and chloride in the ratio 1:2. It has a role as a carcinogenic agent and a genotoxin. It is a beryllium molecular entity and an inorganic chloride."}, {"from": "gpt", "value": "[Be+2].[Cl-1].[Cl-1]"}]