What is the name for CS_2?

$\text{Carbon disulfide............}$
I kid you not, this material has one of the most foul odours you will smell in the lab (tho' reportedly this is due to impurities). Carbon disulfide is also volatile, ($\text{b.p.}$ $\text{46.2}$ ""^@C), and it can be ignited by a hot plate. Anyway, if the bottle is open you will know it, and it should be used in a hood.