\starttext
\setupchemical[axis=off,frame=on, option=test, size=medium, scale=medium, right=2000, left=3000, height=6000,textsize=medium]%textsize and option=test has no effect - why?
\startchemical 
\chemical[SIX,SB135,DB246,SR6,Z,CRZ6][N,C,N,C,C,C,{\LC{\color[green]{NH}}}]%here color works
\color[green]{\chemical[ADJ3,Five,SB235,DB4,Z345,SR3,CRZ3][N,C,H,H]}%color does not work here
\bottext{\offset[y=-\baselineskip]{Adenin}}
\stopchemical

\stoptext