thermopterin

Noun

 * 1)  The methanopterin derivative 2-[[2-[[5-[5-[4-[1-(2-amino-4-oxo-3H-pteridin-7-yl)ethylamino]-2,5-dihydroxyphenyl]-2,3,4-trihydroxypentoxy]-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-4-carboxybutanoyl]amino]butanedioic acid