Chemistry:Biurea

Biurea

Names
Preferred IUPAC name Hydrazine-1,2-dicarboxamide
Systematic IUPAC name (Carbamoylamino)urea
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Tracking categories (test):

• SizeSet

|Section1=! colspan=2 style="background: #f8eaba; text-align: center;" |Identifiers

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CAS Number

|

• 110-21-4 ^Y

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3D model (JSmol)

|

• Interactive image

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| ChemSpider

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• 7748 ^Y

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| EC Number

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• 203-747-2

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PubChem CID

|

• 8039

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| UNII

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• POJ4UOY01H ^Y

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| colspan="2" |

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

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| colspan="2" |

SMILES

• NC(=O)NNC(N)=O

|- |Section2=! colspan=2 style="background: #f8eaba; text-align: center;" |Properties

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Chemical formula

| C₂H₆N₄O₂

|- | Molar mass

| 118.096 g·mol⁻¹

|- | Appearance | White crystals |- |Section3=! colspan=2 style="background: #f8eaba; text-align: center;" |Thermochemistry

|-

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Std enthalpy of
formation (Δ_fH^⦵₂₉₈)

| −499.9–−497.5 kJ mol⁻¹ |-

|

Std enthalpy of
combustion (Δ_cH^⦵₂₉₈)

| −1.1471–−1.1447 MJ mol⁻¹ |- |Section4=! colspan=2 style="background: #f8eaba; text-align: center;" |Related compounds

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Related compounds

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• 1,2-Dimethylhydrazine
• Daminozide

|- }}

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 by transamidation. Its major use is as a chemical intermediate in the production of azodicarbonamide, a common blowing agent.

External links

• Biurea, NLM Hazardous Substances Data Bank