Corrin

Corrin
Names
	IUPAC name (5Z,9Z,14Z)-2,3,7,8,12,13,17,18,19,22-Decahydro-1H-corrin
Identifiers
CAS Number	262-76-0 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:33221 ;
ChemSpider	16736705 ;
PubChem CID	6438343;
UNII	288E04GRMT ;
CompTox Dashboard (EPA)	DTXSID70893668 ;
	InChI InChI=1S/C19H22N4/c1-3-14-10-16-5-7-18(22-16)19-8-6-17(23-19)11-15-4-2-13(21-15)9-12(1)20-14/h9-11,18-19,22H,1-8H2/b12-9-,15-11-,16-10- Key: WUPRCGRRQUZFAB-DEGKJRJSSA-N ; InChI=1/C19H22N4/c1-3-14-10-16-5-7-18(22-16)19-8-6-17(23-19)11-15-4-2-13(21-15)9-12(1)20-14/h9-11,18-19,22H,1-8H2/b12-9-,15-11-,16-10- Key: WUPRCGRRQUZFAB-DEGKJRJSBL;
	SMILES N=1C=4CCC=1\C=C2/NC(CC2)C\5CC/C(C=C3\CC/C(=N3)/C=4)=N/5;
Properties
Chemical formula	C19H22N4
Molar mass	306.40478
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Corrin is a heterocyclic compound. Although not known to exist on its own, the molecule is of interest as the parent macrocycle related to the cofactor and chromophore in vitamin B₁₂. Its name reflects that it is the "core" of vitamin B₁₂ (cobalamins). Compounds with a corrin core are known as "corrins".

There are two chiral centres, which in natural compounds like cobalamin have the same stereochemistry.