4a-Hydroxytetrahydrobiopterin(aq)
Formation Gibbs Energy
Estimated ΔfG'm 197.9 ± 29.2 [kJ/mol]    Enter custom concentration »
Estimated ΔfG'° 215.0 ± 29.2 [kJ/mol]
Estimated using Component Contribution (2013)
pH
Ionic strength [M]
General Properties
Formula C9H15N5O4
Common names 4a-Hydroxytetrahydrobiopterin; (6R)-6-(L-erythro-1,2-Dihydroxypropyl)-5,6,7,8-tetrahydro-4a-hydroxypterin; 4a-Hydroxy-5,6,4,8-tetrahydrobiopterin; C15522
Molar Mass 257.11 [Da]
Structure
Links KEGG »
Species Formation Energies
Phase Net charge #Hydrogens Δf [kJ/mol] ΔfG'° [kJ/mol] Reference
aqueous -2 13 -253.5 271.2 Component Contribution (2013)
aqueous -1 14 -330.6 236.5
aqueous 0 15 -393.2 215.0
aqueous 1 16 -405.0 243.1