Question

what is the structure of H4P2O5?

Answer 1

https://pubchem.ncbi.nlm.nih.gov/compound/436077
https://pubchem.ncbi.nlm.nih.gov/compound/436077Pyrophosphorous acid | H4O5P2 | CID 436077 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological ...Molecular Formula‎: ‎H4O5P2PubChem CID‎: ‎436077Molecular Weight‎: ‎145.975 g/mol

Answer 2

Hydroxytryptophan (5-HTP), also known as oxitriptan, is a naturally occurring amino acidand chemical precursor as well as a metabolic intermediate in the biosynthesis of the neurotransmitter serotonin.