{3,3′,3″,3‴-[(4R,13S,14S,18S,19S)-3,9,14-Tris(carboxymethyl)-4,14,19,23-tetramethyl-21-oxo-22-oxa-24,25,26,27-tetraazahexacyclo[15.6.1.1~2,5~.1~7,10~.1~12,15~.0~1,19~]heptacosa-2,5(27),6,8,10(26),1 1,15(25),16-octaene-4,8,13,18-tetrayl-κ~4~N~24~,N~25~,N~26~,N~27~]tetrapropanoato(8-)}cobaltate(6-)

{3,3′,3″,3‴-[(4R,13S,14S,18S,19S)-3,9,14-Tris(carboxymethyl)-4,14,19,23-tetramethyl-21-oxo-22-oxa-24,25,26,27-tetraazahexacyclo[15.6.1.1~2,5~.1~7,10~.1~12,15~.0~1,19~]heptacosa-2,5(27),6,8,10(26),1 1,15(25),16-octaen-4,8,13,18-tetrayl-κ~4~N~24~,N~25~,N~26~,N~27~]tetrapropanoato(8-)}cobaltat(6-)

{3,3′,3″,3‴-[(4R,13S,14S,18S,19S)-3,9,14-Tris(carboxyméthyl)-4,14,19,23-tétraméthyl-21-oxo-22-oxa-24,25,26,27-tétraazahexacyclo[15.6.1.1~2,5~.1~7,10~.1~12,15~.0~1,19~]heptacosa-2,5(27),6,8,10(26),1 1,15(25),16-octaène-4,8,13,18-tétrayl-κ~4~N~24~,N~25~,N~26~,N~27~]tetrapropanato(8-)}cobaltate(6-)

{3,3′,3″,3‴-[(4R,13S,14S,18S,19S)-3,9,14-Tris(carboxymethyl)-4,14,19,23-tetramethyl-21-oxo-22-oxa-24,25,26,27-tetraazahexacyclo[15.6.1.1~2,5~.1~7,10~.1~12,15~.0~1,19~]heptacosa-2,5(27),6,8,10(26),1 1,15(25),16-octaene-4,8,13,18-tetrayl-κ~4~N~24~,N~25~,N~26~,N~27~]tetrapropanoato(8-)}cobaltate(6-)

Co(II)-factor IV

cobalt(II)-factor IV

cobalt(II)-factor IV(6-)