Porphobilinogen

Porphobilinogen (PBG) is an organic compound that occurs in living organisms as an intermediate in the biosynthesis of porphyrins, which include critical substances like hemoglobin and chlorophyll.^[1]

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Porphobilinogen

Names
Preferred IUPAC name 3-[5-(Aminomethyl)-4-(carboxymethyl)-1H-pyrrol-3-yl]propanoic acid
Identifiers
CAS Number	487-90-1 Y
3D model (JSmol)	Interactive image
ChemSpider	995 Y
DrugBank	DB02272 Y
ECHA InfoCard	100.006.970
EC Number	207-666-3
MeSH	Porphobilinogen
PubChem CID	1021
UNII	74KHC72QXK N
CompTox Dashboard (EPA)	DTXSID4060070
InChI InChI=1S/C10H14N2O4/c11-4-8-7(3-10(15)16)6(5-12-8)1-2-9(13)14/h5,12H,1-4,11H2,(H,13,14)(H,15,16) Y Key: QSHWIQZFGQKFMA-UHFFFAOYSA-N Y
SMILES C1=C(C(=C(N1)CN)CC(=O)O)CCC(=O)O
Properties
Chemical formula	C10H14N2O4
Molar mass	226.229
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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The structure of the molecule can be described as molecule of pyrrole with sidechains substituted for hydrogen atoms at positions 2, 3 and 4 in the ring (1 being the nitrogen atom); respectively, an aminomethyl group −CH₂−NH₂, an acetic acid (carboxymethyl) group −CH₂−COOH, and a propionic acid (carboxyethyl) group −CH₂−CH₂−COOH.