preferred_name: 1,1-dichloroethene + AH2 => chloroethene + chloride + A + H(+)
preferred_name_lc: 1,1-dichloroethene + ah2 => chloroethene + chloride + a + h(+)
label: 1,1-dichloroethene + AH2 => chloroethene + chloride + A + H(+)
label_lc: 1,1-dichloroethene + ah2 => chloroethene + chloride + a + h(+)