Succinylacetone

Succinylacetone is a chemical compound that is formed by the oxidation of glycine and is a precursor of methylglyoxal. It is a pathognomonic compound found in the urine of patients with tyrosinemia type 1,^[1] which is due to congenital deficiency of an enzyme, fumarylacetoacetate hydrolase. This enzyme is involved in the catabolism of tyrosine, and if deficient, leads to accumulation of fumarylacetoacetate which is subsequently converted to succinylacetone which can be detected in the urine by GCMS. Succinylacetone also inhibits ALA dehydratase (PBG synthase) which increases ALA and precipitates acute neuropathic symptoms, similar to porphyria.

Succinylacetone

Names
Preferred IUPAC name 4,6-Dioxoheptanoic acid
Other names Succinyl acetone
Identifiers
CAS Number	51568-18-4 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:87897
ChEMBL	ChEMBL222824
ChemSpider	5121
ECHA InfoCard	100.153.292
EC Number	624-726-8
PubChem CID	5312
UNII	KZ0KV2Q190 Y
CompTox Dashboard (EPA)	DTXSID50199519
InChI InChI=1S/C7H10O4/c1-5(8)4-6(9)2-3-7(10)11/h2-4H2,1H3,(H,10,11) Key: WYEPBHZLDUPIOD-UHFFFAOYSA-N
SMILES CC(=O)CC(=O)CCC(=O)O
Properties
Chemical formula	C7H10O4
Molar mass	158.153 g·mol−1
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references