Mrv0541 02241216312D 7 4 0 0 0 0 999 V2000 -1.1139 -1.2377 0.0000 Ca 0 2 0 0 0 0 0 0 0 0 0 0 -1.1139 -0.4123 0.0000 Ca 0 2 0 0 0 0 0 0 0 0 0 0 0.2885 1.2377 0.0000 O 0 5 0 0 0 0 0 0 0 0 0 0 0.2885 -0.4123 0.0000 O 0 5 0 0 0 0 0 0 0 0 0 0 0.2885 0.4123 0.0000 Si 0 0 0 0 0 0 0 0 0 0 0 0 -0.5361 0.4123 0.0000 O 0 5 0 0 0 0 0 0 0 0 0 0 1.1139 0.4123 0.0000 O 0 5 0 0 0 0 0 0 0 0 0 0 3 5 1 0 0 0 0 4 5 1 0 0 0 0 5 6 1 0 0 0 0 5 7 1 0 0 0 0 M CHG 6 1 2 2 2 3 -1 4 -1 6 -1 7 -1 M END