Conditions | Yield |
---|---|
With Co[PyPS]2Mo11VO40 at 90℃; for 10h; Temperature; Reagent/catalyst; Microwave irradiation; | 89.3% |
With titanium dioxide-based composite solid catalyst A1 at 75℃; for 4h; | 85% |
at 60℃; for 1.5h; Concentration; | 82.4% |
uric Acid
A
parabanic acid
B
Oxalyldiurea
C
dehydro-allantoin
D
Allantoin
Conditions | Yield |
---|---|
With lithium hydroxide; iodine In water for 0.0833333h; excess of I2; | A n/a B n/a C 75% D n/a |
With lithium hydroxide; iodine In water for 0.0833333h; Mechanism; also with substituted uric acid; effect of amount of I2; 2H and 13C labelling experiment; |
Conditions | Yield |
---|---|
With lithium hydroxide; iodine In water at 4℃; equimolar amount of I2; | 70% |
With sodium hydroxide; oxygen; pyrographite | |
With water; ozone |
Conditions | Yield |
---|---|
With potassium hydroxide; potassium permanganate In water for 4h; Product distribution; Mechanism; Ambient temperature; labelled 14C in position of 5; | A 26% B 14% |
Conditions | Yield |
---|---|
In nitromethane for 1h; Reflux; | 15% |
Conditions | Yield |
---|---|
With potassium hydroxide; potassium permanganate In water for 4h; Ambient temperature; Yield given; | A n/a B 14% |
Conditions | Yield |
---|---|
With bromine; acetic acid |
Conditions | Yield |
---|---|
With dihydrogen peroxide; copper dichloride |
Conditions | Yield |
---|---|
With potassium nitrite; acetic acid |
Conditions | Yield |
---|---|
With water |
4,5-dihydroxy-2-oxo-5-ureido-imidazolidine-4-carboxylic acid
Allantoin
Conditions | Yield |
---|---|
With water at 60 - 80℃; | |
With nitric acid |
Conditions | Yield |
---|---|
With water at 110 - 115℃; | |
at 110℃; | |
at 110℃; |
uric Acid
A
parabanic acid
B
pyrimidine-2,4,5,6(1H,3H)-tetraone
C
4-hydroxy-2,5-dioxoimidazolidine-4-carboxamide
D
5,5-dihydroxy-pyrimidine-2,4,6-trione
E
urea
F
Allantoin
Conditions | Yield |
---|---|
In methanol Mechanism; electrochemical oxidation; |
uric Acid
A
pyrimidine-2,4,5,6(1H,3H)-tetraone
B
urea
C
Allantoin
Conditions | Yield |
---|---|
at 25℃; Product distribution; Mechanism; Rate constant; electrochemical oxidation; buffer (pH=2-10); various times, potentials and electrodes; | |
In phosphate buffer at 24℃; pH=2.3 - 11.2; Product distribution; Further Variations:; effect of surfactants; differential pulse voltammetric oxidation; Electrochemical reaction; |
1-carboxy-2,4,6,8-tetraazabicyclo<3.3.0>octa-4-ene-3,7-dione
Allantoin
Conditions | Yield |
---|---|
With hydroxide at 25℃; Rate constant; |
Conditions | Yield |
---|---|
at 25℃; Product distribution; Mechanism; Rate constant; electrochemical oxidation; buffer (pH=6-10); various times, potentials and electrodes; |
5-hydroxyisourate
Allantoin
Conditions | Yield |
---|---|
With phosphate buffer In water at 22℃; Rate constant; var. ionic strength of buffer; |
A
4-hydroxy-2,5-dioxoimidazolidine-4-carboxamide
B
β-D-ribofuranose
D
Allantoin
Conditions | Yield |
---|---|
In water at 22℃; Rate constant; pH 7.0; decomposition rate constants; |
potassium cyanate
5-amino-imidazolidine-2,4-dione
water
Allantoin
Conditions | Yield |
---|---|
at 38℃; |
2,4-imidazolidinedione
bromine
acetic acid
urea
Allantoin
Conditions | Yield |
---|---|
saeuert man die alkal.Loesung mit Essigsaeure, und nach weiterem Stehenlassen oder Eindampfen der Loesung; |
Allantoin
Conditions | Yield |
---|---|
With hydrogenchloride | |
With water |
Allantoin
Conditions | Yield |
---|---|
With ammonia | |
With potassium hydroxide | |
With potassium hydroxide |
Conditions | Yield |
---|---|
With acetic anhydride |
Conditions | Yield |
---|---|
With N-Bromosuccinimide; potassium iodide; potassium hydroxide In water at 0 - 25℃; for 3h; Temperature; Reagent/catalyst; Darkness; | 91.32% |
N-Cyanoguanidine
Allantoin
Conditions | Yield |
---|---|
With sulfuric acid In water for 20h; Heating; Green chemistry; | 81% |
potassium (4-fluorobenzoyl)trifluoroborate
Allantoin
Conditions | Yield |
---|---|
With 1,3-dichloro-5,5-dimethylhydantoin In tetrahydrofuran at 40℃; for 4h; pH=3; chemoselective reaction; | 80% |
acetic acid
Allantoin
monopotassium 1,2,3,4-tetrahydro-2,4-dioxo-1,3,5-triazine-6-carboxylate
Conditions | Yield |
---|---|
Stage #1: Allantoin With bromine; potassium iodide; potassium hydroxide In water at 0 - 25℃; for 30h; Stage #2: acetic acid In water at 0 - 5℃; pH=5; Time; | 76.1% |
Conditions | Yield |
---|---|
With potassium carbonate In ethanol for 3h; Heating; | 52% |
1-(3-iodopropyl)-3,7-dimethyl-2,3,6,7-tetrahydro-1H-2,6-purinedione
Allantoin
Conditions | Yield |
---|---|
Stage #1: Allantoin With sodium methylate In methanol for 1.5h; Heating; Stage #2: 1-(3-iodopropyl)-3,7-dimethyl-2,3,6,7-tetrahydro-1H-2,6-purinedione In methanol for 36h; Heating; | 40% |
Allantoin
phenol
A
5-(4-hydroxy-phenyl)-imidazolidine-2,4-dione
B
D,L-5-(2'-hydroxyphenyl)hydantoin
Conditions | Yield |
---|---|
hydrogenchloride at 65℃; for 24h; | A 19.2% B 8% |
hydrogenchloride at 65℃; for 24h; | A 19.2% B 8% |
Conditions | Yield |
---|---|
With potassium hydroxide | |
Darstellung; |
Conditions | Yield |
---|---|
With hydrogenchloride nachfolgende Einw. von salpetriger Saeure; |
Conditions | Yield |
---|---|
With hydrogen iodide |
Conditions | Yield |
---|---|
With sodium amalgam; sulfuric acid |
Conditions | Yield |
---|---|
With permanganate(VII) ion; acetic acid |
Conditions | Yield |
---|---|
With ammonium persulfate; sodium acetate | |
With potassium permanganate; bi carbonate .alkali | |
With potassium permanganate; acetic acid |
Conditions | Yield |
---|---|
With dihydrogen peroxide |
Conditions | Yield |
---|---|
With potassium hydroxide | |
With potassium hydroxide; water | |
enzymatische Spaltung durch Brei oder Presssaft von Leguminosensamen; | |
With water Alkaline conditions; |
Conditions | Yield |
---|---|
With barium dihydroxide |
Allantoin
diureido-acetic acid hydrazide
Conditions | Yield |
---|---|
With hydrazine hydrate |
Conditions | Yield |
---|---|
With lithium carbonate Bei der elektrochemischen Oxydation an einer Bleidioxydanode; |
9-hydroxyxanthene
Allantoin
1-(2,5-dioxo-imidazolidin-4-yl)-3-xanthen-9-yl-urea
Conditions | Yield |
---|---|
With acetic acid |
The Allantoin, with the CAS registry number 97-59-6, is also known as 1-(2,5-Dioxo-4-imidazolidinyl)urea. It belongs to the product categories of Substrates; Intermediates & Fine Chemicals; Metabolites & Impurities; Pharmaceuticals. Its EINECS registry number is 202-592-8. This chemical's molecular formula is C4H6N4O3 and molecular weight is 158.12. What's more, its IUPAC name is called (2,5-Dioxoimidazolidin-4-yl)urea. It should be stored in a cool, dry and well-ventilated place. In fish, Allantoin is broken down further (into ammonia) before excretion. It is a major metabolic intermediate in many other organisms including plants and bacteria. It is frequently present in toothpaste, mouthwash, and other oral hygiene products, in shampoos, lipsticks, anti-acne products, sun care products, and clarifying lotions, various cosmetic lotions and creams, and other cosmetic and pharmaceutical products.
Physical properties about Allantoin are: (1)ACD/LogP: -1.523; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): -1.52; (4)ACD/LogD (pH 7.4): -1.62; (5)ACD/BCF (pH 5.5): 1.00; (6)ACD/BCF (pH 7.4): 1.00; (7)ACD/KOC (pH 5.5): 3.53; (8)ACD/KOC (pH 7.4): 2.81; (9)#H bond acceptors: 7; (10)#H bond donors: 5; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 113.32 Å2; (13)Index of Refraction: 1.616; (14)Molar Refractivity: 33.422 cm3; (15)Molar Volume: 95.701 cm3; (16)Polarizability: 13.25×10-24cm3; (17)Surface Tension: 82.625 dyne/cm; (18)Density: 1.652 g/cm3.
Preparation of Allantoin: this chemical can be prepared by 7,9-dihydro-3H-purine-2,6,8-trione. This reaction needs reagents I2, LiOH and solvent H2O at temperature of 4 °C. The yield is 70 %.
Uses of Allantoin: it is used to produce other chemicals. For example, it can react with 1-(3-iodo-propyl)-3,7-dimethyl-3,7-dihydro-purine-2,6-dione to get {1-[3-(3,7-dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-purin-1-yl)-propyl]-2,5-dioxo-imidazolidin-4-yl}-urea. The reaction occurs with reagent NaOMe and other condition of heating for 1.5 hours. The yield is 40 %.
When you are dealing with this chemical, you should be very careful. This chemical is inflammation to the skin, eyes and respiratory system or other mucous membranes. It has serious damage to eyes. If swallowed, it's harmful to health. Therefore, you should wear suitable protective clothing. The gas can not be breathed and you should avoid contacting with skin and eyes. In case of contacting with eyes, you should rinse immediately with plenty of water and seek medical advice.
You can still convert the following datas into molecular structure:
(1) SMILES: C1(C(=O)NC(=O)N1)NC(=O)N
(2) InChI: InChI=1S/C4H6N4O3/c5-3(10)6-1-2(9)8-4(11)7-1/h1H,(H3,5,6,10)(H2,7,8,9,11)
(3) InChIKey: POJWUDADGALRAB-UHFFFAOYSA-N
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