Tetrahydrobiopterin

**Semantic type:** Organic Chemical

**Definition:** A cofactor that is essential for the activity of aromatic amino acid hydroxylases. Tetrahydrobiopterin degrades phenylalanine, and facilitates the biosynthesis of several neurotransmitters and the production of nitric oxide.

**Synonyms:** - (1R,2S)-(2-Amino-3,4,5,6,7,8-Hexahydro-4-Oxo-6-Pteridinyl)-1,2- Propandiol - 2-Amino-6-(1,2-Dihydroxypropyl)-5,6,7,8-Tetrahydoro-4(1H)-Pteridinone - 2-Amino-6-(1,2-Dihydroxypropyl)-5,6,7,8-Tetrahydropteridin-4(3H)-One - 4(1H)-Pteridinone, 5,6,7,8-Tetrahydro-2-Amino-6-(1,2-Dihydroxypropyl)- - 5,6,7,8-Tetrahydro-2-Amino-6-(1,2-Dihydroxypropyl)-4(1H)-Pteridinone - 5,6,7,8-Tetrahydrobiopterin - BH4 - Biopterin, 5,6,7,8-Tetrahydro- - L-Erythro-2-Amino-6-(1,2-Dihydroxypropyl)-5,6,7,8-Tetrahydro-4(3H)- Pteridinon