qíng
cyanogen (CN)2
ethane dinitrile
qíng jī
cyan
cyanide radical -CN, stable triple bond with chemical properties like halogens
qīng huà qíng
hydrocyanic acid
hydrogen cyanide
èr lǜ yì sān jù qíng suān nà
sodium dichloroisocyanurate
èr lǜ yì sān jù qíng suān nà
sodium dichloroisocyanurate