It is a colourless solid that is soluble in warm water and polar organic solvents.

It is a planar molecule with short C-S and C-N distances (1.69, 1.38 Å, resp.)

[1] The compound can be viewed as the product from the condensation of two molecules of thiourea, but it is prepared by treatment of 2-cyanoguanidine with hydrogen sulfide.

The conversion proceeds via guanylthiourea: It is used as a plasticizer, a rubber accelerator, and as an intermediate in pesticide manufacturing.

[2] It is extremely toxic; exposure can result in respiratory failure.