- Source: Methanedithiol
Methanedithiol is an organosulfur compound with the formula H2C(SH)2. A seldom used chemical, it form when formaldehyde reacts with hydrogen sulfide under pressure:
CH2O + 2 H2S → H2C(SH)2 + H2O
This reaction competes with formation of trithiane:
3 H2C(SH)2 → [H2CS]3 + 3 H2S
Methanedithiol forms a solid dibenzoate derivative upon treatment with benzoic anhydride:
3 H2C(SH)2 + 2 (C6H5CO)2O → H2C[SC(O)C6H5]2 + 2 C6H5CO2H
Methanetrithiol is also known.