A white solid, it is a precursor to other sulfur nitrides,[1] but has no commercial applications.

The S3N3 core is slightly ruffled structure with S-N distances of 160.5 pm.

The S-Cl distances are 208 pm, and the chlorine atoms are mutually cis.

In contrast, with six fewer electrons, cyanuric chloride is a planar ring.

Alkoxide or silver salts displace the chlorides:[5] Treating thiazyl chloride with sulfur in the presence of antimony pentachloride gives dithionitronium hexachloroantimonate:[6] It reacts with nitriles to dithiadiazolium chlorides:[2] Sulfur trioxide successively oxidizes the compound at the sulfur atoms to (NSOCl)3,[4] which exists as stereoisomers.