Dihydroxymethylidene
Dihydroxymethylidene
Chemical compound
Dihydroxymethylidene or carbonous acid is a chemical compound with formula C(OH)2. It is an unstable tautomer of formic acid. There is no evidence that this compound exists in solution, but the molecule has been detected in the gas phase.[1] Many related carbenes are known, although they are often transient.[2]