Term Name:	precorrin-1
Synonyms:	3,3',3'',3'''-[(12S,13S)-3,8,13,17-tetrakis(carboxymethyl)-13-methyl-5,10,12,13,20,24-hexahydroporphyrin-2,7,12,18-tetrayl]tetrapropanoic acid, Precorrin 1
Definition:	The first intermediate in the biosynthesis of vitamin B12 from uroporphyrinogen III, in which one methyl group has been introduced at position 2 of the tetrapyrrole framework.
Ontology:	ChEBI [CHEBI:52469]  ( EBI )