:Bis(hydroxymethyl)urea
{{Chembox
| ImageFile = OC(NHCH2OH)2.png
| ImageSize =
| ImageAlt =
| PIN = N,N′-Bis(hydroxymethyl)urea
| OtherNames = dimethylolurea
|Section1={{Chembox Identifiers
| CASNo = 140-95-4
| PubChem = 8827
| ChemSpiderID = 8496
| EC_number = 205-444-0
| UNII = N68H97CAWG
| ChEMBL = 3185052
| ChEBI = 134755
| StdInChI=1S/C3H8N2O3/c6-1-4-3(8)5-2-7/h6-7H,1-2H2,(H2,4,5,8)
| StdInChIKey = QUBQYFYWUJJAAK-UHFFFAOYSA-N
| SMILES = C(NC(=O)NCO)O
}}
|Section2={{Chembox Properties
| C=3|H=8|N=2|O=3
| MolarMass = 120.11
| Appearance = white solid
| Density =
| MeltingPt = 126 °C
| BoilingPt =
| Solubility = good }}
|Section3={{Chembox Hazards
| MainHazards =
| FlashPt =
| AutoignitionPt = }}
}}
Bis(hydroxymethyl)urea is an organic compound with the formula OC(NHCH2OH)2. This white water-soluble solid is an intermediate in the formation of urea-formaldehyde resins. It forms upon treatment of urea with an excess of formaldehyde.{{ Ullmann | author = C. Nitschke | author2 = G. Scherr | title = Urea Derivatives | year = 2012| doi = 10.1002/14356007.o27_o04}}