Linear Formula: HCONH2, Molecular Weight: 45.04, Synonym: Amide C1, Formic amide. ≥99.5% (GC), BioReagent, for molecular biology. Formamide is a clear liquid amide derived from formic acid. It can be used as a cryoprotectant and gel-stabilizer. It is known to destabilize nucleic acid duplexes, making it useful for preparing hybridization buffers for RNA and DNA applications.