Alloxan

Alloxan
Alloxan	Alloxan hydrate
Names
	Preferred IUPAC name 5,5-Dihydroxypyrimidine-2,4,6(1H,3H,5H)-trione
	Other names 5,5-Dihydroxybarbituric acid
Identifiers
CAS Number	50-71-5 (Anhydrous) ; 3237-50-1 (monohydrate) ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:76451 ;
ChEMBL	ChEMBL1096009 ;
ChemSpider	5577 ;
ECHA InfoCard	100.000.057
EC Number	200-062-0;
MeSH	Alloxan
PubChem CID	5781;
UNII	6SW5YHA5NG (anhydrous) ; O2AAP9F8B6 (monohydrate) ;
CompTox Dashboard (EPA)	DTXSID5044946 ;
	InChI InChI=1S/C4H2N2O4/c7-1-2(8)5-4(10)6-3(1)9/h(H2,5,6,8,9,10) Key: HIMXGTXNXJYFGB-UHFFFAOYSA-N ; InChI=1/C4H2N2O4/c7-1-2(8)5-4(10)6-3(1)9/h(H2,5,6,8,9,10) Key: HIMXGTXNXJYFGB-UHFFFAOYAQ;
	SMILES C1(=O)C(=O)NC(=O)NC1=O;
Properties
Chemical formula	C4H4N2O5
Molar mass	160.07 g/mol
Appearance	pale yellow solid
Density	1.639 g/cm3 (anhydrous)
Melting point	254 °C (489 °F; 527 K) (decomposition)
Solubility in water	0.29 g/100 mL
Hazards
Safety data sheet (SDS)	MSDS
	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

Alloxan, sometimes referred to as alloxan hydrate, is an organic compound with the formula OC(N(H)CO)₂C(OH)₂. It is classified as a derivative of pyrimidine. The anhydrous derivative OC(N(H)CO)₂CO is also known, as well as a dimeric derivative. These are some of the earliest known organic compounds. They exhibit a variety of biological activities.

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