L-Biopterin；L-生物蝶呤；
CAS :22150-76-1
Molecular Weight:237.22
Formula:C9H11N5O3
6-Biopterin (L-Biopterin), a pterin derivative, is a NO synthase cofactor.6-Biopterin (L-Biopterin)
Appearance:White to off-white powder
Purity：98+%