Urea is an organic compound with the chemical formula (N H 2) 2 C O. Urea is also known as carbamide, especially in the recommended International Nonproprietary Names . 1,1.3ml e-liquid tank cart in LSK e cigarette 2,CE.ROHS.SGS 3.LSK can fit ego-T/510-T 4.property:LSK e cigarette.