DMPU

DMPU
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 ;
3D model (JSmol)	Interactive image;
Abbreviations	DMPU
ChEMBL	ChEMBL12284 ;
ChemSpider	73671 ;
ECHA InfoCard	100.027.841
EC Number	230-625-6;
PubChem CID	81646;
CompTox Dashboard (EPA)	DTXSID3074575 ;
	InChI InChI=1S/C6H12N2O/c1-7-4-3-5-8(2)6(7)9/h3-5H2,1-2H3 Key: GUVUOGQBMYCBQP-UHFFFAOYSA-N ; 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
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). verify (what is ?) 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.