8279. Rubeanic Acid

Nomenclature

CAS number: 79-40-3
Ethanedithioamide; dithiooxamide.
C2H4N2S2; mol wt 120.20.
C 19.98%, H 3.35%, N 23.31%, S 53.35%.

Description and references

Review of rubeanic acid and derivs as chelating ligands and analytical reagents: Ray, Xavier, J. Indian Chem. Soc. 38, 535 (1961).

Chemical structure

Properties

Red crystals or cryst powder; dec ≈200°. Slightly sol in water; sol in alcohols. Insol in ether.

Use

As a reagent for copper, cobalt, and nickel. As a stabilizer of ascorbic acid solns: Smoczkiewicz, Grochmalicka, Nature 192, 16 (1961).