Biurea

Biurea

Names
Preferred IUPAC name Hydrazine-1,2-dicarboxamide
Systematic IUPAC name (Carbamoylamino)urea
Other names Bicarbamamide Bicarbamimidic acid Biscarbamoylhydrazine Carbamoylsemicarbazide Hydrazinedicarboxamide Ureidourea
Identifiers
CAS Number	110-21-4 Y
3D model (JSmol)	Interactive image Interactive image
ChemSpider	7748 Y
ECHA InfoCard	100.003.408
EC Number	203-747-2
PubChem CID	8039
InChI InChI=1S/C2H6N4O2/c3-1(7)5-6-2(4)8/h(H3,3,5,7)(H3,4,6,8) Y Key: ULUZGMIUTMRARO-UHFFFAOYSA-N Y
SMILES [nH2]:c(:[o]):[nH]:[nH]:c(:[nH2]):[o] NC(=O)NNC(N)=O
Properties
Chemical formula	C2H6N4O2
Molar mass	118.10 g·mol−1
Appearance	White crystals
Thermochemistry
Std enthalpy of formation (ΔfHo298)	−499.9–−497.5 kJ mol−1
Std enthalpy of combustion (ΔcHo298)	−1.1471–−1.1447 MJ mol−1
Related compounds
Related compounds	1,2-Dimethylhydrazine Daminozide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Biurea is a chemical compound with the molecular formula C₂H₆N₄O₂. It is produced in food products containing azodicarbonamide, a common ingredient in bread flour, when they are cooked. Upon exposure, biurea is rapidly eliminated from the body through excretion.

Biurea is produced from urea and hydrazine. Its major use is as a chemical intermediate in the production of azodicarbonamide.