13C urea
Conditions | Yield |
---|---|
With ammonium sulfate; ammonium hydroxide at 70℃; for 4h; | 87% |
trichloro[13C]methyl phenyl sulfide
A
13C urea
B
(13C)-guanidine hydrochloride
Conditions | Yield |
---|---|
Stage #1: trichloro[13C]methyl phenyl sulfide With ammonia In ethanol; dichloromethane; water at -80 - 20℃; for 72.5h; Stage #2: With hydrogenchloride; water | A 49% B 47% |
A
diazomethane
B
13C urea
C
carbonic acid monomethyl ester
D
[13C]cyanic acid
Conditions | Yield |
---|---|
With sodium hydroxide; phosphate buffer In methanol; water at 22℃; Product distribution; other reagents, temperature; |
Conditions | Yield |
---|---|
recrystn. from ethanol; |
Conditions | Yield |
---|---|
With iron(II) bromide In 1,4-dioxane at 150℃; for 18h; Inert atmosphere; Sealed tube; | 90% |
13C urea
13C3-cyanuric acid
Conditions | Yield |
---|---|
In sulfolane at 205℃; under 100 Torr; for 2h; | 88.4% |
In sulfolane; cyclohexanol at 50 - 200℃; | 87% |
With sulfolane; cyclohexanol at 60 - 210℃; for 3h; |
13C urea
Conditions | Yield |
---|---|
at 190℃; for 2h; | 80% |
Conditions | Yield |
---|---|
With hydrogenchloride In water at 85 - 90℃; | 78% |
Conditions | Yield |
---|---|
With nickel(II) acetylacetonate; potassium fluoride; phenylsilane; zinc; bis(2-diphenylphosphinoethyl)phenylphosphine In 1-methyl-pyrrolidin-2-one at 90 - 140℃; for 20h; | 75% |
Conditions | Yield |
---|---|
With sodium ethanolate In ethanol for 5h; Heating; | 74% |
Conditions | Yield |
---|---|
With PPA at 85℃; for 6h; | 66% |
Stage #1: 13C urea; Propiolic acid at 95 - 110℃; Stage #2: With water; sodium hydroxide | 64% |
Conditions | Yield |
---|---|
With potassium hydroxide at 100℃; for 3h; | 65% |
Conditions | Yield |
---|---|
at 170℃; | 60% |
13C urea
methyl p-toluene sulfonate
O-methyl-[13C]isourea p-methylsulfonate salt
Conditions | Yield |
---|---|
Methylation; Heating; | 60% |
1.) 100 deg C, 5 h; 2.) acetone, RT, 1 h; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
In tetrahydrofuran for 15h; Heating; | 48% |
13C urea
Conditions | Yield |
---|---|
With sodium ethanolate 1.) EtOH, RT, 10 min, 2.) EtOH, reflux, 12 h; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With sodium ethanolate 1.) ETOH, 0 deg C, 2.) EtOH, reflux, 30 h; Yield given. Multistep reaction; |
13C urea
Conditions | Yield |
---|---|
at 100℃; for 1h; |
13C urea
DL-5-chlorohydantoin
Conditions | Yield |
---|---|
In nitromethane for 1h; Reflux; |
Conditions | Yield |
---|---|
at 185℃; for 1h; | 296 mg |
13C urea
carbon dioxide
Conditions | Yield |
---|---|
With carbon dioxide; urease In water for 1h; Catalytic behavior; Solvent; Concentration; Sealed tube; Enzymatic reaction; |
The CAS register number of Urea-13C (6CI,9CI) is 58069-82-2. It also can be called as Urea-13C - Research Grade and the IUPAC name about this chemical is diaminomethanone. The molecular formula about this chemical is CH4N2O and the molecular weight is 61.06. It belongs to the following product categories which include Carbon-13 Salts; cGMPStable Isotopes; Alphabetical Listings; Stable Isotopes; U-Z and so on. If you want to store it, you should keep the container tightly sealed in dry, cool places and avoid contact with water. It is stable under normal temperature and pressure.
Physical properties about Urea-13C (6CI,9CI) are: (1)Index of Refraction: 1.468; (2)Molar Refractivity: 13.78 cm3; (3)Molar Volume: 49.5 cm3; (4)Polarizability: 5.46x10-24cm3; (5)Surface Tension: 55.3 dyne/cm; (6)Density: 1.212 g/cm3.
Preparation: this chemical can be prepared by potasium [13C]cyanate. This reaction will need reagent of (NH4)2SO4, aq. NH4OH. The reaction time is 4 hours with reaction temperature of 70 °C. The yield is about 87%.
Uses of Urea-13C (6CI,9CI): it can be used to produce 6-amino[2-13C]uracil with cyanoacetic acid ethyl ester. This reaction will need reagent of EtONa and solvent of ethanol. This reaction needs heating. The reaction time is 5 hours. The yield is about 74%.
You can still convert the following datas into molecular structure:
(1)SMILES: C(=O)(N)N
(2)InChI: InChI=1/CH4N2O/c2-1(3)4/h(H4,2,3,4)/i1+1
(3)InChIKey: XSQUKJJJFZCRTK-OUBTZVSYEV
(4)Std. InChI: InChI=1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)/i1+1
(5)Std. InChIKey: XSQUKJJJFZCRTK-OUBTZVSYSA-N
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