As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
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inquiryItems Standard Result Appearance Light yellow powder Light yellow powder Identification IR
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inquiryProduct Description Product Name 2,6-Dihydroxy-3-methylpurine CAS No. 1076-22-8 Appearance White to yellowish powder Assay ≥99% Capacity 100mt/year Min.packin
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inquiryUnique advantages of 2,6-Dihydroxy-3-methylpurine Cas 1076-22-8 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White powder Storage:White powder Package:25kg/drum Application:bioch
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inquiry1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
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inquiryCangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap
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inquiryOur Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
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inquiryHenan Tianfu Chemical Co., Ltd. is located in Zhengzhou High-tech Development Zone with import and export license. We passed ISO 9001:2008 in 2009, and won "High-tech Enterprise" by provincial government in 2013.The objective of the com
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inquiryAppearance:White to Pale Beige powder Storage:2-8°C Package:25kg/drum Application:chemicals Transportation:Express/Sea/Air Port:any port in china
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inquiry2,6-Dihydroxy-3-methylpurine CAS:1076-22-8 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organ
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inquiryAdvantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&
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inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
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inquiryTriumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Service 1.Own made fine chemical products 2.Out sourcing and qua
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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
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inquiry1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie
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inquiryHangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
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inquiryNewCan Biotech Limited was established in 2021 and is primarily engaged in the research, development, production, and sales of sugars, nucleosides, nucleotides, phosphorylated monomers, as well as next-generation antiviral and antitumor drug intermed
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inquiryJ&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia
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inquiryMassive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and
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inquiryZibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi
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inquiry4-(N-methylamino)-1H-imidazole-5-carboxamide
3-methylxanthine
Conditions | Yield |
---|---|
With formic acid; perchloric acid adsorbed on silica gel In ethanol at 20℃; for 0.333333h; Solvent; | 95.12% |
Conditions | Yield |
---|---|
Stage #1: formic acid; 5,6-diamino-1-methyluracil In water at 105℃; for 3h; Stage #2: With sodium hydroxide In water at 105℃; for 1h; | 94.1% |
Stage #1: formic acid; 5,6-diamino-1-methyluracil In water for 3h; Reflux; Inert atmosphere; Stage #2: With sodium hydroxide In water for 1h; Reflux; Inert atmosphere; | 80% |
Stage #1: formic acid; 5,6-diamino-1-methyluracil In water for 3h; Reflux; Inert atmosphere; Stage #2: With sodium hydroxide In water at 20℃; for 1h; Inert atmosphere; Reflux; | 78% |
7-benzyl-3-methylxanthine
3-methylxanthine
Conditions | Yield |
---|---|
With 20 % Pd(OH)2/C; hydrogen In acetic acid; ethyl acetate at 90℃; under 75007.5 Torr; for 0.416667h; H-Cube reactor; | 90% |
Conditions | Yield |
---|---|
With hydrogenchloride In water for 0.5h; Ambient temperature; | 84% |
With hydrogenchloride In water at 25℃; Rate constant; hydrolytic cleavage of the glycosidic bond in several HCl solutions; |
1-methyl-2,4-dioxo-5,6-diaminopyrimidine hydrochloride
orthoformic acid triethyl ester
3-methylxanthine
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In N,N-dimethyl-formamide at 70℃; for 3.5h; | 53% |
Conditions | Yield |
---|---|
With acetic acid nachfolgenden Behandeln mit Eisenchlorid; |
5,6-diamino-1-methyluracil
formamide
3-methylxanthine
Conditions | Yield |
---|---|
With palladium on activated charcoal; formic acid; isopropyl alcohol Erwaermen des Reaktionsprodukts mit wss.NaOH; | |
Multi-step reaction with 3 steps 1: 98 percent / H2 / 10percent Pd/C / H2O / 3750.3 Torr / Ambient temperature 2: 96 percent / 10percent Pd/C / 39.9 °C 3: NaOH View Scheme | |
Multi-step reaction with 2 steps 1: Na2S2O4, 25percent aq. NH4OH / 20 - 50 °C 2: 2.) 2.2 M aq. NaOH / 1.) reflux, 2 h, 2.) reflux, 45 min View Scheme |
5-acetylamino-6-amino-1-methyl-1H-pyrimidine-2,4-dione
formamide
3-methylxanthine
(1-methyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidin-5-yl)-amidosulfuric acid
formamide
3-methylxanthine
Conditions | Yield |
---|---|
1.) electrolyse: formamide, platinum mesh as anode, tin plate as cathode, 30-35 deg C, current density 12.5 A/dm2, 2.) 180-200 deg C; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With sodium thiophenolate at 280℃; for 1.5h; Yield given; |
3-methyl-4-amino-5-formylamino-2,6-dioxypyrimidine
3-methylxanthine
Conditions | Yield |
---|---|
With sodium hydroxide |
theophylline
A
1-methylxanthine
B
3-methylxanthine
C
1,3-dimethyluric acid
Conditions | Yield |
---|---|
With rat liver microsome; NADPH In phosphate buffer Enzyme kinetics; Further Variations:; inhibition by mexiletine and its metabolites; Oxidation; |
3-methylxanthine
Conditions | Yield |
---|---|
With phosphonium iodide; hydrogen iodide | |
With phosphonium iodide; hydrogen iodide |
3-methylxanthine
Conditions | Yield |
---|---|
at 260℃; |
3-methylxanthine
Conditions | Yield |
---|---|
at 220℃; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 96 percent / 10percent Pd/C / 39.9 °C 2: NaOH View Scheme |
1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-5-<(ethoxycarbonyl)methylamino>imidazole-4-carboxamide
3-methylxanthine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 69 percent / 1N NaOH / H2O / 3 h / Ambient temperature 2: 0.1N HCl / H2O / 25 °C / hydrolytic cleavage of the glycosidic bond in several HCl solutions View Scheme |
1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-5-(methylamino)imidazole-4-carboxamide
3-methylxanthine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 36 percent / AcONa / acetic acid / 5 h / 30 °C 2: 69 percent / 1N NaOH / H2O / 3 h / Ambient temperature 3: 0.1N HCl / H2O / 25 °C / hydrolytic cleavage of the glycosidic bond in several HCl solutions View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 10 percent / sodium thiophenolate / 1.5 h / 280 °C 2: sodium thiophenolate / 1.5 h / 280 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 37 percent / sodium thiophenolate / 1.5 h / 250 °C 2: 10 percent / sodium thiophenolate / 1.5 h / 280 °C 3: sodium thiophenolate / 1.5 h / 280 °C View Scheme | |
Multi-step reaction with 2 steps 1: 21 percent / sodium thiophenolate / 1.5 h / 250 °C 2: sodium thiophenolate / 1.5 h / 280 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: NaNO2, AcOH / H2O / 2 h / Ambient temperature 2: Na2S2O4, 25percent aq. NH4OH / 20 - 50 °C 3: 2.) 2.2 M aq. NaOH / 1.) reflux, 2 h, 2.) reflux, 45 min View Scheme | |
Multi-step reaction with 3 steps 1.1: acetic acid; sodium nitrite / water / 1.5 h / 20 - 50 °C 2.1: ammonium hydroxide; sodium dithionite / 7 h / 25 - 60 °C 3.1: water / 3 h / 105 °C 3.2: 1 h / 105 °C View Scheme | |
Multi-step reaction with 2 steps 1.1: sodium dithionite; ammonium hydroxide / 1 h / 50 °C 2.1: water / 3 h / Reflux; Inert atmosphere 2.2: 1 h / Reflux; Inert atmosphere View Scheme |
theophylline
A
5,6-diaminouracil
B
3-methylxanthine
C
1,3-dimethyluric acid
I
xanthin
Conditions | Yield |
---|---|
With dihydrogen peroxide at 20℃; for 0.133333h; pH=6; Kinetics; UV-irradiation; |
5,6-diamino-1-methyluracil
orthoformic acid triethyl ester
3-methylxanthine
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In N,N-dimethyl-formamide at 70℃; for 3.5h; Inert atmosphere; |
3-methylxanthine
Conditions | Yield |
---|---|
With sodium hydroxide In water at 70 - 95℃; for 1h; pH=1.5; pH-value; Temperature; |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: sodium hydroxide / water / 0.5 h / 95 °C / pH 8 2.1: sodium nitrite / 2.5 h / 20 °C / pH 8 2.2: 3 h / 50 °C 3.1: sodium hydroxide / water / 1 h / 70 - 95 °C / pH 1.5 View Scheme |
3-methylxanthine
3-methyl-8-bromoxanthine
Conditions | Yield |
---|---|
With bromine; sodium acetate In acetic acid at 50 - 65℃; for 3h; | 96.6% |
With bromine; acetic acid at 100℃; for 6h; | 95% |
With bromine; sodium acetate; acetic acid at 65℃; for 3h; | 94.17% |
3-methylxanthine
but-2-yn-1-yl methanesulfonate
Conditions | Yield |
---|---|
With potassium hydrogencarbonate In 1-methyl-pyrrolidin-2-one at 50℃; for 7.75h; | 94% |
3-methylxanthine
dimethyl sulfate
3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
Conditions | Yield |
---|---|
With tetramethyl ammoniumhydroxide; potassium carbonate In methanol; water at 65 - 70℃; | 92.5% |
Conditions | Yield |
---|---|
With sodium hydride In N,N-dimethyl-formamide for 4h; | 92% |
3-methylxanthine
p-methoxybenzyl chloride
3,7-dihydro-7-(4-methoxybenzyl)-3-methyl-1H-purine-2,6-dione
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 60℃; for 2h; | 90% |
With potassium carbonate In N,N-dimethyl-formamide at 60℃; for 1.5h; |
3-methylxanthine
7-(6-hydroxy-hexyl)-3-methyl-3,7-dihydro-purine-2,6-dione
Conditions | Yield |
---|---|
With sodium hydroxide In methanol; water | 90% |
Conditions | Yield |
---|---|
Stage #1: 3-methylxanthine With sodium hydride In dimethyl sulfoxide; mineral oil at 0 - 80℃; for 0.5h; Stage #2: Cyclohexylmethyl bromide In dimethyl sulfoxide; mineral oil at 80℃; for 12h; Inert atmosphere; | 89% |
Conditions | Yield |
---|---|
With potassium carbonate; potassium iodide In N,N-dimethyl-formamide at 60℃; for 12h; | 88% |
In methanol; sodium hydroxide; water | |
In methanol; sodium hydroxide; water |
Conditions | Yield |
---|---|
Stage #1: 3-methylxanthine; dimethyl sulfate With sodium hydrogencarbonate In water; acetone at 55 - 60℃; for 4h; Stage #2: With hydrogenchloride In water at 80℃; pH=5 - 6; Product distribution / selectivity; | 87% |
Conditions | Yield |
---|---|
With sodium hydride In N,N-dimethyl-formamide for 4h; | 87% |
Conditions | Yield |
---|---|
Stage #1: 3-methylxanthine With potassium carbonate; potassium iodide In N,N-dimethyl-formamide at 80℃; for 0.5h; Stage #2: ethyl iodide In N,N-dimethyl-formamide for 5h; | 86% |
3-methylxanthine
2-chloro-N-(2-(6-bromo)pyridinyl)acetamide
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; Inert atmosphere; | 83.7% |
3-methylxanthine
3-methyl-8-nitroxanthine
Conditions | Yield |
---|---|
With nitric acid In acetic acid at 120℃; for 1.5h; | 83% |
With nitric acid; acetic acid 1.) 100 deg C, 30 min, 2.) reflux, 15 min; | 63% |
3-methylxanthine
Conditions | Yield |
---|---|
With tetra-(n-butyl)ammonium iodide; potassium carbonate In N,N-dimethyl-formamide at 50℃; for 2h; Inert atmosphere; | 83% |
Conditions | Yield |
---|---|
With tetra-(n-butyl)ammonium iodide; sodium hydride In N,N-dimethyl-formamide at 60℃; for 12h; | 78% |
With tetra-(n-butyl)ammonium iodide; sodium hydride In N,N-dimethyl-formamide at 60℃; for 12h; | 78% |
3-methylxanthine
A
3-methyl-7-aminoxanthine
B
3-methyl-1,7-diaminoxanthine
Conditions | Yield |
---|---|
With potassium hydroxide; sodium hydrogencarbonate; hydroxylamine-O-sulfonic acid In water at 50 - 60℃; for 0.666667h; | A 67% B 7% |
With potassium hydroxide; sodium hydrogencarbonate; hydroxylamine-O-sulfonic acid In water at 50℃; for 0.166667h; | A 67% B 7% |
3-methylxanthine
methyl iodide
A
theobromine /
B
1,7,9-trimethylxanthinium iodide
Conditions | Yield |
---|---|
at 110℃; for 1.5h; closed Kjeldahl flask; | A 61% B 28% |
3-methylxanthine
1,6-dichlorohexane
1,7-Bis(ω-chlorohexyl)-3-methyl-xanthine
Conditions | Yield |
---|---|
With sodium hydroxide In N,N-dimethyl-formamide at 85 - 105℃; | 60% |
1,5-dichloropentane
3-methylxanthine
1,7-Bis(ω-chloropentyl)-3-methyl-xanthine
Conditions | Yield |
---|---|
With sodium hydroxide In N,N-dimethyl-formamide at 85 - 105℃; | 58% |
3-methylxanthine
1,4-dichlorobutane
1,7-Bis(ω-chlorobutyl)-3-methyl-xanthine
Conditions | Yield |
---|---|
With sodium hydroxide In N,N-dimethyl-formamide at 85 - 105℃; | 55% |
Conditions | Yield |
---|---|
Stage #1: 3-methylxanthine With potassium carbonate In N,N-dimethyl-formamide at 90℃; for 3h; Inert atmosphere; Stage #2: ethyl bromoacetate In N,N-dimethyl-formamide at 20℃; for 19h; | 55% |
2-(Bromomethyl)pyridine
3-methylxanthine
Conditions | Yield |
---|---|
Stage #1: 3-methylxanthine; N-(2-bromo-1,3-thiazol-4-yl)-2-chloroacetamide With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 2h; Inert atmosphere; Stage #2: 2-(Bromomethyl)pyridine With tetra-(n-butyl)ammonium iodide; potassium carbonate In N,N-dimethyl-formamide at 100℃; for 2h; Inert atmosphere; | 54% |
3-methylxanthine
1,3-Dichloropropane
1,7-Bis(γ-chloropropyl)-3-methyl-xanthine
Conditions | Yield |
---|---|
With sodium hydroxide In N,N-dimethyl-formamide at 85 - 105℃; | 53% |
1-iodo-butane
3-methylxanthine
7-butyl-3-methyl-1H-purine-2,6(3H,7H)-dione
Conditions | Yield |
---|---|
Stage #1: 3-methylxanthine With potassium hydroxide In methanol; water at 80℃; for 1.5h; Stage #2: 1-iodo-butane In methanol; water at 50℃; for 24h; | 52% |
1,10-dichlorodecane
3-methylxanthine
1,7-Bis(ω-chlorodecyl)-3-methyl-xanthine
Conditions | Yield |
---|---|
With sodium hydroxide In N,N-dimethyl-formamide at 85 - 105℃; | 51% |
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