DMPU

DMPU

Skeletal formula of DMPU
Ball-and-stick model of the DMPU molecule
Names
Preferred IUPAC name 1,3-Dimethyl-1,3-diazinan-2-one
Other names N,N′-Dimethyl-N,N′-trimethyleneurea N,N′-Dimethylpropyleneurea 1,3-Dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone
Identifiers
CAS Number	7226-23-5 checkY
3D model (JSmol)	Interactive image
Abbreviations	DMPU
ChEMBL	ChEMBL12284 checkY
ChemSpider	73671 checkY
ECHA InfoCard
EC Number	230-625-6
E number
PubChem CID	81646
CompTox Dashboard (EPA)	{{#property:P3117}}
InChI InChI=1S/C6H12N2O/c1-7-4-3-5-8(2)6(7)9/h3-5H2,1-2H3 checkY Key: GUVUOGQBMYCBQP-UHFFFAOYSA-N checkY InChI=1/C6H12N2O/c1-7-4-3-5-8(2)6(7)9/h3-5H2,1-2H3 Key: GUVUOGQBMYCBQP-UHFFFAOYAB
SMILES O=C1N(C)CCCN1C
Properties
Chemical formula	C6H12N2O
Molar mass	128.175 g·mol−1
Density	1.064 g/cm3
Melting point	−20 °C; −4 °F; 253 K
Boiling point	246.5 °C (475.7 °F; 519.6 K) (Source)
Solubility in water	miscible
Refractive index (nD)	1.4875-1.4895
Hazards
GHS labelling:
Pictograms	GHS05: CorrosiveGHS07: Exclamation markGHS09: Environmental hazard
Signal word	Danger
Hazard statements	H302, H318, H361f
Precautionary statements	P201, P202, P264, P270, P280, P281, P301+P312, P305+P351+P338, P308+P313, P310, P330, P405, P501
Flash point	121 °C (250 °F; 394 K)
Safety data sheet (SDS)	External MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). checkY verify (what is checkY☒N ?) Infobox references

N,N′-Dimethylpropyleneurea (DMPU) is a cyclic urea sometimes used as a polar, aprotic organic solvent. Along with the dimethylethyleneurea, it was introduced as an analog of tetramethylurea.

In 1985, Dieter Seebach showed that it is possible to replace the suspected carcinogen hexamethylphosphoramide (HMPA) with DMPU.