1, 3, 4, 5, 6, 7, 8, 8-Octachloro-1, 3, 3a, 4, 7, 7a-hexahydro-4, 7-endo- methanoisobenzofuran

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Found in phrases

1, 3, 4, 5, 6: 3 phrases in 2 subjects

Chemistry	1
Environment	2