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632-22-4

Name 1,1,3,3-Tetramethylurea
CAS 632-22-4
EINECS(EC#) 211-173-9
Molecular Formula C5H12N2O
MDL Number MFCD00008319
Molecular Weight 116.16
MOL File 632-22-4.mol
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Chemical Properties

Appearance CLEAR COLOURLESS LIQUID
Melting point  −1 °C(lit.)
Boiling point  177 °C(lit.)
density  0.968 g/mL at 20 °C(lit.)
refractive index  n20/D 1.451(lit.)
Fp  150 °F
storage temp.  Inert atmosphere,Room Temperature
solubility  H2O: 1 M at 20 °C, miscible
form  Liquid
pka 2.0(at 25℃)
color  Clear colorless to pale yellow
Odor faint pleasant odor
PH 5-8 (25℃, 1M in H2O)
Relative polarity 5
Water Solubility  miscible
Usage 1) As intermediates in pesticides. 2) As a high-grade solvent, in dyestuff and other industries. 3) As intermediates in surfactant. 4) In peptides and other products produced by the bio-chemical industry.
Merck  14,9230
BRN  773898
Dielectric constant 24.460000000000001
InChIKey AVQQQNCBBIEMEU-UHFFFAOYSA-N
CAS DataBase Reference 632-22-4(CAS DataBase Reference)
NIST Chemistry Reference Urea, tetramethyl-(632-22-4)
EPA Substance Registry System 632-22-4(EPA Substance)
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Safety Data

Hazard Codes  Xn,T
Risk Statements 
R22:Harmful if swallowed.
Safety Statements 
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
RIDADR  NA 1993 / PGIII
WGK Germany  3
RTECS  YU2625000
F  3-10
TSCA  Yes
HS Code  29241900
Safety Profile
Moderately toxic by ingestion and intravenous routes. An experimental teratogen. Experimental reproductive effects. Human mutation data reported. Combustible when exposed to heat, flame, and oxidizers. To fight fire, use foam, mist, spray, dry chemicals. When heated to decomposition it emits toxic fumes of NOx.
Hazardous Substances Data 632-22-4(Hazardous Substances Data)
Toxicity
LD50 i.v. in rats: 1.1 g/kg (Lüttringhaus, Dirksen)

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