DMPU

DMPU
Names
	Preferred IUPAC name 1,3-Dimethyl-1,3-diazinan-2-one
	Other names N,Nâ²-Dimethyl-N,Nâ²-trimethyleneurea; N,Nâ²-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 gÂ·molâ1
Density	1.064 g/cm3
Melting point	â20 Â°C; â4 Â°F; 253 K
Boiling point	246.5 Â°C (475.7 Â°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 Â°C (250 Â°F; 394 K)
Safety data sheet (SDS)	External MSDS
	Except where otherwise noted, data are given for materials in their standard state (at 25 Â°C [77 Â°F], 100 kPa). verify (what is ?) Infobox references

N,Nâ²-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.^[2]

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In 1985, Dieter Seebach showed that it is possible to replace the suspected carcinogen hexamethylphosphoramide (HMPA) with DMPU.^[3]

References