SMILES: CC(C(C1CN=C2C(N1)(C(=O)NC(=N2)N)O)O)O
Description: The molecule is a tetrahydropterin that is 5,6,7,8-tetrahydrobiopterin carrying an additional hydroxy substituent at the 4a-position. It has a role as a human metabolite. It is a tetrahydropterin and a hemiaminal. It derives from a 5,6,7,8-tetrahydrobiopterin.