1	H4M	5,10-dimethylene tetrahydromethanopterin	1.000
2	E4M	1-{4-[(6s,6ar,7r)-3-amino-6,7-dimethyl-1-oxo-1,2,5,6,6a,7-hexahydro-8h-imidazo[1,5-f]pteridin-10-ium-8-yl]phenyl}-1-deoxy-5-O-{5-O-[(S)-{[(1s)-1,3-dicarboxypropyl]oxy}(hydroxy)phosphoryl]-alpha-D-ribofuranosyl}-D-ribitol	1.000