Dayangchem’s 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. DayangChem can provide different quantiti
Cas:58-55-9
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
inquirySpecification of Theophylline / Theophylline Anhydrous ANALYSIS CONTENT ANALYSIS STANTARD ANALYSIS RESULT CHARACTERISTICS WHITE CRYSTALLINE PODWER PASS IDE
Cas:58-55-9
Min.Order:5 Kilogram
FOB Price: $45.0 / 60.0
Type:Trading Company
inquiryDMF GMP are all available! Hangzhou Huarong Pharm Co., Ltd. established since 2009 , has been always focusing on supplying products and services to our clients in the field of small molecule drug. Huarong Pharm has built platforms for the resea
Cas:58-55-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryBest Seller, High Quality, Competitive Price, Fast Delivery, Quick ResponseAppearance:powder, or liquid Storage:Stored in room temperature, ventilated place Package:Bottle, barrel, cargo, container, etc. Application:Pharmaceuticals, intermediates, AP
Founded in 2014, as a professional international pharmaceutical corporation, headquartered in Xi'an (China), KonoChemCo., Ltd. is a leading producer of standardized herbal extracts, natural active ingredients and APIs for pharmaceutical, healt
Unique advantages for Theophylline Cas 58-55-9 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White or almost white crystalline powder Storage:Store in 2-8℃ Package:25kg
Cas:58-55-9
Min.Order:25 Kilogram
FOB Price: $20.0 / 22.5
Type:Trading Company
inquiryThe above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
1. 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
Cas:58-55-9
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryShanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
Cas:58-55-9
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
inquiryColorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on
hebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm
Cas:58-55-9
Min.Order:1 Metric Ton
FOB Price: $1.0 / 3.0
Type:Trading Company
inquiryName:Theophylline CAS NO: 58-55-9 Grade:Medical scientific research and export Molecular formula:C7H8N4O2 Molecular weight:180.16 Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data st
Cas:58-55-9
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
Type:Other
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&
Cas:58-55-9
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryOur company was built in 2009 with an ISO certificate.In the past 6 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O
Cas:58-55-9
Min.Order:1 Kilogram
FOB Price: $1000.0
Type:Lab/Research institutions
inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
Cas:58-55-9
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:58-55-9
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryOur Adwantage: 1.We have stock so we can delivery quickly at the very day when receive the payment. 2.Best price, first class service, high successful delivery rate. A discount would be given when you make a large order. 3.High quality gua
Cas:58-55-9
Min.Order:10 Pound
Negotiable
Type:Other
inquiryHanways chempharm is a specialized company concentrating on the R&D, production, marketing and technical service of APIs and pharmaceutical intermediates. The marketing department is located in Wuhan. We have two GMP facilities in Hubei Pr
Cas:58-55-9
Min.Order:1 Kilogram
FOB Price: $200.0 / 400.0
Type:Trading Company
inquiry1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized
Cas:58-55-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryOur company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese
Beluga chemical professional supply High quality Theophylline CAS 58-55-9 1. Beluga Chemical has a professional RESEARCH and development team and strong technical force to ensure technical support and research capabilities. 2. Made in China and e
Cas:58-55-9
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryWe generally use secure shipping methods that do not require you to do any customs clearance. Free shipping to your address without worrying about any customs issues. We have a professional customs clearance team to 100% guarantee the safe delivery o
Cas:58-55-9
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryOur Advantage 1. Rich experience We specialize in this filed for many years, our APIs exported to all over the world and and we established long friendly relations of cooperation with our clients. 2. Great quality,purity and favorable Good qual
Cas:58-55-9
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
Cas:58-55-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryProduct Detail Minimum Order Qty. 10 Gram Supply Ability 500 Kilograms/Month Storage store in cool, dry, ventilated place 20℃ Delivery Time 3 business days after payment Payment Term TT,western union,Paypal,
Cas:58-55-9
Min.Order:20 Metric Ton
Negotiable
Type:Trading Company
inquiry1.High Quality: Quality is life. Quality is the most important element for all goods. We have a lab doing research in Wuhan China and produce sarms in bulk quantity. We have 8 years experience making all kinds of sarms. And all our old customers thr
Cas:58-55-9
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
inquiry1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures
Cas:58-55-9
Min.Order:1 Kilogram
FOB Price: $20.0 / 40.0
Type:Lab/Research institutions
inquiryOverview of Our Factories Our Factories production lines Our Factories R&D ability Our Factories warehouse Our Factorie
Cas:58-55-9
Min.Order:1 Kilogram
FOB Price: $5.0 / 10.0
Type:Lab/Research institutions
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
Hangzhou Fanda Chemical Co.,Ltd (FandaChem) , a China-based chemical company, specialize in exporting Theophylline anhydrous(1,3-Dimethylxanthine;Theophylline), CAS:58-55-9 , Please contact us by email freely. We are leading exporter in Chi
Cas:58-55-9
Min.Order:0 Metric Ton
Negotiable
Type:Other
inquiryConditions | Yield |
---|---|
With triethylamine; 1,3-bis[2,6-diisopropylphenyl]imidazolium chloride In water at 75℃; under 4500.45 Torr; for 0.916667h; Pressure; Temperature; Autoclave; | 97.7% |
With sodium hydroxide; sodium chloride | |
With sodium hydroxide | |
at 250 - 260℃; | |
With sulfuric acid at 90℃; pH=5; pH-value; Temperature; Reagent/catalyst; |
Methyl formate
1,3-Dimethylxanthine potassium salt
A
theophylline
B
3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
Conditions | Yield |
---|---|
In methanol | A 97.5% B n/a |
7-amino-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione
theophylline
Conditions | Yield |
---|---|
With hydrogenchloride; sodium nitrite In water at 5℃; for 1h; | 95% |
theophylline
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane at 20℃; | 87% |
(1,3-Dimethyl-2,6(1H,3H)-dioxopurin-7-yl)(phenyl)methyl acetate
theophylline
Conditions | Yield |
---|---|
With hydrogenchloride In methanol Ambient temperature; | 78% |
1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxo-9H-purine-9-carbonitrile
theophylline
Conditions | Yield |
---|---|
In water for 1h; Reflux; | 77% |
N-(1,3-dimethyl-6-nitro-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidin-5-yl)-formamide
theophylline
Conditions | Yield |
---|---|
With iron; acetic acid for 0.5h; Heating; | 75% |
2,2-dimethyl-propionic acid 1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-purin-7-ylmethyl ester
theophylline
Conditions | Yield |
---|---|
68% |
7-(2-acetamido-4,6-di-O-acetyl-2,3-dideoxy-D-threo-hex-2-enopyranosyl)theophylline
A
theophylline
B
7-(methyl 2-acetamido-6-O-acetyl-2,3,4-trideoxy-α-D-threo-hex-2-enopyranosid-4-yl)theophylline
C
7-(methyl 2-acetamido-6-O-acetyl-2,3,4-trideoxy-β-D-erythro-hex-2-enopyranosid-4-yl)theophylline
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In methanol for 0.25h; Heating; | A n/a B 54% C 12% |
Conditions | Yield |
---|---|
at 110 - 300℃; for 2.33333h; | 51% |
With hydrogenchloride; sodium hydroxide at 90℃; Yield given; |
7-azido-1,3-dimethylpteridine-2,4(1H,3H)-dione
theophylline
Conditions | Yield |
---|---|
In N,N-dimethyl acetamide for 0.25h; Reflux; | 50% |
7-(2-acetamido-4,6-di-O-acetyl-2,3-dideoxy-D-threo-hex-2-enopyranosyl)theophilline
theophylline
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In methanol Product distribution; | 48% |
1,3-dimethyl-5-bromo-6-methylaminopyrimidine-2,4-dione
theophylline
Conditions | Yield |
---|---|
With sodium azide In N,N-dimethyl-formamide Ambient temperature; | 47% |
4,5-Diamino-1,3-dimethyluracil
Vilsmeier reagent
theophylline
Conditions | Yield |
---|---|
In toluene 1.) RT, 2.) reflux; | 44% |
3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
A
theophylline
B
theobromine /
Conditions | Yield |
---|---|
With sodium thiophenolate at 250℃; for 1.5h; | A 37% B 21% |
6-amino-5-bromo-1,3-dimethylpyrimidine-2,4(1H,3H)-dione
formamide
theophylline
Conditions | Yield |
---|---|
for 7h; Reflux; | 35% |
3,7-Dihydro-1,3-dimethyl-2,6-dioxo-1H-purin-7-carbonsaeure-ethylester
A
theophylline
B
(E)-1,2-diphenyl-ethene
3,4,5,7-Tetrahydro-1,3-dimethyl-2,6-dioxo-anti-10,syn-11-diphenyl-4,5-ethano-1H-purin-7-carbonsaeure-ethylester
Conditions | Yield |
---|---|
In dichloromethane at 25 - 30℃; for 12h; Irradiation; | A 8% B 23% C 6% |
(E)-1,2-diphenyl-ethene
3,7-Dihydro-1,3-dimethyl-2,6-dioxo-1H-purin-7-carbonsaeure-ethylester
A
theophylline
3,4,5,7-Tetrahydro-1,3-dimethyl-2,6-dioxo-syn-10,anti-11-diphenyl-4,5-ethano-1H-purin-7-carbonsaeure-ethylester
3,4,5,7-Tetrahydro-1,3-dimethyl-2,6-dioxo-anti-10,syn-11-diphenyl-4,5-ethano-1H-purin-7-carbonsaeure-ethylester
Conditions | Yield |
---|---|
In dichloromethane at 25 - 30℃; for 12h; Irradiation; | A 8% B 23% C 6% |
theophylline
Conditions | Yield |
---|---|
With acetic acid; zinc for 0.666667h; Reflux; | 20% |
With iron; acetic acid at 119℃; for 0.516667h; Temperature; Reflux; | |
With iron; acetic acid at 122℃; for 0.533333h; Temperature; Reflux; |
Conditions | Yield |
---|---|
With palladium diacetate; triethylamine; tris-(o-tolyl)phosphine In N,N-dimethyl-formamide at 120℃; for 20h; Heck Reaction; Inert atmosphere; Molecular sieve; Sealed tube; | A n/a B 17% C 6% D 20% |
3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
A
theophylline
B
theobromine /
C
paraxanthine
Conditions | Yield |
---|---|
With hepatic cytochrome P450 Enzymatic reaction; | A 7% B 12% C n/a |
6-Amino-1,3-dimethylbarbituric acid
formamide
theophylline
Conditions | Yield |
---|---|
With formic acid; sodium nitrite anschliessendes Erhitzen mit Na2S2O4 auf 200grad; | |
With formic acid; sodium nitrite anschliessendes Erhitzen mit Na2S2O4 auf 200grad; |
4,5-Diamino-1,3-dimethyluracil
formamide
theophylline
Conditions | Yield |
---|---|
With water; zinc | |
With tetralin; iodine | |
With sodium hydroxide; palladium-barium carbonate at 105℃; under 29420.3 Torr; Hydrogenation; | |
bei der elektrochemischen Reduktion an einer Quecksilber-Kathode; | |
bei der elektrolytischen Reduktion an Bleikathoden; |
5-acetylamino-6-amino-1,3-dimethyl-1H-pyrimidine-2,4-dione
formamide
theophylline
Conditions | Yield |
---|---|
at 165 - 170℃; |
6-amino-1,3-dimethyl-5-phenylazouracilate
formamide
theophylline
Conditions | Yield |
---|---|
With nickel at 140℃; under 66195.7 Torr; Hydrogenation; |
theophylline
Conditions | Yield |
---|---|
With deuterium In water-d2 at 55℃; under 1500.15 Torr; for 36h; Glovebox; | 100% |
theophylline
4-(methoxymethoxy)-3-nitrobenzyl bromide
methoxymethylphidolopin
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide Ambient temperature; | 99% |
theophylline
1,2-dichloro-ethane
7-(2-chloroethyl)-3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione
Conditions | Yield |
---|---|
With sodium hydroxide; Aliquat 336 for 4h; Heating; | 99% |
With sodium hydroxide In water; isopropyl alcohol at 78 - 80℃; for 76.5h; Heating; | 90% |
In water; dimethyl sulfoxide |
Conditions | Yield |
---|---|
With caesium carbonate In N,N-dimethyl-formamide at 20℃; for 2h; Inert atmosphere; Schlenk technique; | 99% |
methyl bromide
theophylline
A
3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
B
3-benzyladenine
Conditions | Yield |
---|---|
With solution aqueuse d'hydroxide de sodium; tetrabutylammomium bromide In dichloromethane 1)20 deg C, 12h 2)40 deg C, 3h; | A 98% B n/a |
theophylline
1,3-dibromo-propane
7-(3-bromo-propyl)-1,3-dimethyl-3,7-dihydro-purine-2,6-dione
Conditions | Yield |
---|---|
With sodium hydroxide; Aliquat 336 for 2h; Heating; | 98% |
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 24h; | 91% |
With triethylamine In N,N-dimethyl-formamide at 60℃; | 77% |
theophylline
C7H(2)H7N4O2
Conditions | Yield |
---|---|
With palladium 10% on activated carbon; hydrogen; water-d2 at 160℃; for 24h; | 97% |
theophylline
1,3-Dimethylxanthine potassium salt
Conditions | Yield |
---|---|
With potassium hydroxide In water for 0.166667h; | 97% |
ethyl bromide
theophylline
7-ethyl-1,3-dimethyl-3,7-dihydro-purine-2,6-dione
Conditions | Yield |
---|---|
With sodium hydroxide; tetrabutylammomium bromide In dichloromethane at 40℃; for 24h; | 96% |
With potassium hydroxide at 100℃; |
Conditions | Yield |
---|---|
With triethylamine In acetonitrile Reflux; | 96% |
Conditions | Yield |
---|---|
With caesium carbonate In acetonitrile at 20℃; for 6h; chemoselective reaction; | 96% |
Conditions | Yield |
---|---|
With chloramine-B for 0.166667h; Ambient temperature; | 95% |
Conditions | Yield |
---|---|
With Lawessons reagent; aluminum oxide for 0.166667h; microwave irradiation; | 95% |
Conditions | Yield |
---|---|
Stage #1: theophylline With sodium hydride In N,N-dimethyl-formamide at 20℃; for 0.166667h; Stage #2: 4-chlorobutyl bromide In N,N-dimethyl-formamide at 20℃; for 24h; Further stages.; | 95% |
Conditions | Yield |
---|---|
With sodium hydride In dimethyl sulfoxide for 0.75h; | 95% |
With sodium hydride In dimethyl sulfoxide at 20℃; for 24h; Reagent/catalyst; | 90% |
theophylline
Di-tert-butyl acetylenedicarboxylate
triphenylphosphine
di-tert-butyl 2-(theophylline-7-yl)-3-(triphenylphosphoranylidene)-butanedioate
Conditions | Yield |
---|---|
In diethyl ether at -5 - 20℃; for 10h; chemoselective reaction; | 95% |
Conditions | Yield |
---|---|
In acetonitrile at 20℃; for 24h; diastereoselective reaction; | 95% |
theophylline
1-bromomethyl-4-nitro-benzene
1,3-dimethyl-7-(4-nitrobenzyl)xanthine
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; Inert atmosphere; Schlenk technique; | 95% |
With potassium carbonate In N,N-dimethyl-formamide at 100℃; for 4h; |
Conditions | Yield |
---|---|
With triphenylphosphine In acetonitrile at 20℃; for 2h; | 95% |
theophylline
1-chloro-3-phenyl-2-propyne
7-phenylpropargyl-1,3-dimethylxanthine
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; Inert atmosphere; Schlenk technique; | 95% |
Conditions | Yield |
---|---|
With 2,4,6-trimethyl-pyridine; tert-butylammonium hexafluorophosphate(V) In dichloromethane for 2.5h; Molecular sieve; Electrochemical reaction; | 95% |
theophylline
8-bromotheophylline
Conditions | Yield |
---|---|
With bromine In water; acetic acid at 50℃; for 4h; | 94.5% |
With bromine at 150℃; zuletzt auf 150grad; | |
With ethanol; bromine |
theophylline
isopropyl alcohol
8-(1-hydroxy-1-methyl-ethyl)-1,3-dimethyl-3,7(9)-dihydro-purine-2,6-dione
Conditions | Yield |
---|---|
With acetone at 25℃; for 80h; Product distribution; Mechanism; Irradiation; | 94% |
With acetone at 25℃; for 80h; Irradiation; | 94% |
theophylline
8-bromo-1,3-dimethyl-7-(thiiran-2-ylmethyl)-3,7-dihydro-1H-purine-2,6-dione
7-[(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl)methyl]-1,3-dimethyl-6,7-dihydro[1,3]thiazolo[2,3-f]purine-2,4(1H,3H)-dione
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol for 3h; Reflux; | 94% |
Conditions | Yield |
---|---|
With tris(dibenzylideneacetone)dipalladium(0) chloroform complex; (2S,3S)-(+)-1,4-bis(diphenylphosphino)-2,3-O-isopropylidene-2,3-butanediol In 1,4-dioxane at 30℃; for 18h; Inert atmosphere; Schlenk technique; Sealed tube; | 94% |
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; Inert atmosphere; Schlenk technique; | 93% |
With potassium carbonate In N,N-dimethyl-formamide at 20℃; Inert atmosphere; Schlenk technique; | 93% |
With potassium carbonate In N,N-dimethyl-formamide at 35℃; for 16h; | 87% |
theophylline
1-chloroacetophenone
1,3-dimethyl-7-(2-oxo-2-phenylethyl)-3,7-dihydropurine-2,6-dione
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 2h; Alkylation; | 93% |
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