3d
acid
atom
atomic
biochemistry
built structure
c2cl6
carbon
carcinogen
chemical
chemical formula
chemistry
chlorine
composition
compound
environment
formula
hexachloroethane
hydrogen
insecticide
laboratory
line
model
molecular
molecular structure
molecule
organic
organochlorine
organochlorine compound
oxygen
perchloroethane
persistence
persistent
pesticide
pollutant
pollution
research
science
skeletal
social issues
solid
structure
substitute
toxic
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