1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards. 2. Now we have established long-term stab
Name Acety
Cas:50-78-2
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Manufacturers
inquiryPacking: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Appearance:White crystal powder / Refer to COA Storage:Sto
Cas:50-78-2
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryModel NO. 50-78-2 Colour Colorless Keywords Acetylsalicylic Acid CAS 50-78-2 Keywords 1 Aspirin Price Keywords 2 Aspirin Factory Keywords 3 Aspirin Supplier Stock Yes Purity 99 Sample Yes Package 25 Kgs / Drum Certification ISO
Cas:50-78-2
Min.Order:1 Metric Ton
Negotiable
Type:Trading Company
inquiryGUANGZHOU MEDCAN PHARMATECH LTD.is a high-tech company engaged in new biopharmaceutical product development, sales, genetic engineering, bioinformatics and other areas of research and development, registered capital of 11,110,000 RMB, the company h
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 quantities
Cas:50-78-2
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryWhy is SINOWAY: 1) Specialized in pharmaceutical and healthcare industrial for 34 years. 2) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days. 4) We have warehouse in USA with quickly shipment . 5) We c
Cas:50-78-2
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryUnique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White powder Storage:Cool dry place Package:1kg/foill bag;25kg/drum Application:as medicin
Cas:50-78-2
Min.Order:100 Kilogram
Negotiable
Type:Trading Company
inquiryXi’an Quanao Biotech Co., Ltd. with 18 years experience in plant extract filed. Product grade: Medicine, Health care product, Cosmetics, Food, Beverage, Feed. Hot selling market: Europe, North America, South America, Middle East, Asia Pacifi
Cas:50-78-2
Min.Order:1 Kilogram
FOB Price: $9.9 / 19.9
Type:Manufacturers
inquiryWe suppply Acetylsalicylic acid 1.In very competitive price 2.Quality guaranteed 3.Fast delivery 4.Financial credit support We supply Acetylsalicylic acid 1.In very competitive price 2.Quality guaranteed 3.Fast delivery 4.Financial c
Cas:50-78-2
Min.Order:500 Kilogram
Negotiable
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
Our company may produce and pack according to customer's requirement. Appearance:White crystal or crystalline powder Storage:Seal up container in dry place. Package:25kg in fiberboard-made pail attached with paper or polyethylene bag inside. Ap
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:50-78-2
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryADVANTAGE: 1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day 2. The products are provided with COA, HPLC, NMR, quality assurance,
1. ISO AVALIABLE ; 2. IN STOCK 3. FAST REPLY QUALIFED ; EFFICIENCY; RESPONSIBLE Appearance:WHITE POWDER Storage:in cool Package:25kg/carton Application:active pharmaceutical ingredient Transportation:as request Port:any port
Colorcom 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:50-78-2
Min.Order:1 Metric Ton
FOB Price: $1.0 / 3.0
Type:Trading Company
inquiryName:Acetylsalicylic acid CAS no:50-78-2 Grade:Medical, scientific research and export Molecular formula:C9H8O4 Molecular weight:180.15 Product Quality 12 years of chemical raw materials Mature operation of the industry System stability D
Cas:50-78-2
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
Type:Other
inquiryOur advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva
Cas:50-78-2
Min.Order:1 Gram
FOB Price: $12.0 / 15.0
Type:Trading Company
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:50-78-2
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
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 email in t
Cas:50-78-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryItems Standard Results Appearance White or almost white crystalline powder White crystalline powder
Appearance:White crystal or crystalline powder Storage:ln stock Package:25kg/Carton Application:Chemicals Transportation:Express/Sea/Air Port:Any port in china
Cas:50-78-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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 qu
Cas:50-78-2
Min.Order:10 Gram
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:50-78-2
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:50-78-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryMethanesulfonic acid is a raw material for medicine and pesticide. It can also be used as dehydrating agent, curing accelerator for coating, treating agent for fiber, solvent, catalysis, and esterification as well as polymerization reaction. It c
Cas:50-78-2
Min.Order:1 Kilogram
FOB Price: $80.0 / 100.0
Type:Trading Company
inquiryBeluga chemical professional supply Acetyl Salicylic Acid Aspirin CAS:50-78-2 Why choose Beluga chemical 1. Beluga Chemical has a professional RESEARCH and development team and strong technical force to ensure technical support and research capa
Cas:50-78-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryWe have overseas warehouses in California, New Laredo Mexico, Vancouver Canada, Amsterdam Netherlands, and Melbourne Australia. Overseas warehouses can provide some of the best-selling products. We look forward to the cooperation of local powerful
Cas:50-78-2
Min.Order:0 Metric Ton
Negotiable
Type:Trading Company
inquiryCompany information: Hebei Mojin Biotechnology Co., Ltd, Our company is a professional in carbomer,carbopol,lead acetate,meglumine diphenyl ethylamine and other chemical raw materials and chemical reagents research and development production enterpr
Cas:50-78-2
Min.Order:1 Kilogram
FOB Price: $8.0 / 10.0
Type:Trading Company
inquiryConditions | Yield |
---|---|
In neat (no solvent) Molecular sieve; Microwave irradiation; Green chemistry; | 100% |
With erbium(III) chloride for 0.2h; Heating; | 99% |
With SO42-/ZrO2*graphene oxide solid super acid catalyst at 70℃; for 5h; Reagent/catalyst; Green chemistry; | 97.1% |
methylene-benzo[1,3]dioxin-4-one
aspirin
Conditions | Yield |
---|---|
With water at 25℃; for 1h; pH=7; | 100% |
Conditions | Yield |
---|---|
at 80 - 90℃; | 95% |
With sulfuric acid at 70℃; for 5h; Reagent/catalyst; | 95.7% |
aspirin
Conditions | Yield |
---|---|
With thionyl chloride; dihydrogen peroxide In ethanol at 25℃; for 0.0166667h; | 95% |
With chloro-trimethyl-silane; dihydrogen peroxide In ethanol; water at 25℃; for 0.0666667h; regioselective reaction; | 88% |
With Oxone for 0.583333h; | 58% |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 0 - 20℃; | 86% |
With pyridine; sulfuric acid Cooling with ice; | 59.23% |
aspirin
Conditions | Yield |
---|---|
With bismuth(III) chloride; water In acetonitrile at 50℃; for 1h; | 85% |
Conditions | Yield |
---|---|
With zinc(II) oxide In N,N-dimethyl-formamide for 0.15h; microwave irradiation; | 80% |
With potassium permanganate; benzyl(triethyl)ammoniumpermanganate In acetic acid at 30℃; for 72h; | 24% |
With 2,2'-azobis(isobutyronitrile); oxygen; 1N,3N,5N-trihydroxy-1,3,5-triazin-2,4,6[1H,3H,5H]-trione; cobalt(II) acetate; manganese(II) acetate In acetic acid at 150℃; under 760 Torr; for 14h; | 9% |
C16H16N2O5S
aspirin
Conditions | Yield |
---|---|
With copper dichloride In tetrahydrofuran; water for 24h; Ambient temperature; | 80% |
acetic anhydride
4'-Methoxy-flavyliumchlorid
A
4-methoxybenzoic acid
B
aspirin
Conditions | Yield |
---|---|
With ruthenium(IV) oxide; sodium periodate 1) 5 h, room temp., pyridine; 2) acetic ester, water, 20 min : decomposition reaction; | A 79% B 52% |
With ruthenium(IV) oxide; sodium periodate 1) 5 h, room temp., pyridine; 2) water, acetic ester, 20 min; Yield given. Multistep reaction. Yields of byproduct given; |
O-acetylsalicylic acid acid 2-oxo-1,2,2-triphenylethyl ester
A
13-oxa-indeno[1,2-l]phenanthrene
B
aspirin
Conditions | Yield |
---|---|
With air In ethanol; acetonitrile Irradiation; | A n/a B 79% |
Conditions | Yield |
---|---|
With oxygen; CoCl2 In 1,2-dichloro-ethane at 25℃; other aldehydes; | 71.5% |
With oxygen; CoCl2 In 1,2-dichloro-ethane at 25℃; | 71.5% |
With oxygen; cobalt(II) chloride In 1,2-dichloro-ethane at 25℃; for 20h; | 71% |
tert-butyl acetylperoxysalicylate
A
2-acetoxybiphenyl
B
Phenyl acetate
C
salicylic acid
D
aspirin
Conditions | Yield |
---|---|
In benzene at 100℃; for 48h; | A 36% B 10% C 42% D 12% |
Conditions | Yield |
---|---|
With lithium chloride In N,N-dimethyl-formamide for 0.166667h; Microwave irradiation; chemoselective reaction; | 34% |
Stage #1: methyl acetylsalicylate With sodium hydroxide In methanol; water for 2h; Reflux; Stage #2: With hydrogenchloride |
(Z)-1-acetoxy-1-(2-acetoxyphenyl)-1,3-butadiene
A
2-methyl-3-(phenylmethyl)chromone
B
(E)-1-acetoxy-1-(2-acetoxyphenyl)-1,3-butadiene
C
aspirin
Conditions | Yield |
---|---|
In hexane for 2h; Ambient temperature; Irradiation; | A 7% B 30% C 23% |
(2-acetoxy-benzoic acid )-acetic acid-anhydride
acetic acid
A
acetic anhydride
B
aspirin
acetic acid
dibenzoyl peroxide
A
benzoic acid
B
Phenyl acetate
C
aspirin
D
benzene
Ketene
acetone
salicylic acid
A
(2-acetoxy-benzoic acid )-acetic acid-anhydride
B
aspirin
Ketene
diethyl ether
salicylic acid
A
(2-acetoxy-benzoic acid )-acetic acid-anhydride
B
aspirin
Conditions | Yield |
---|---|
With acetone Behandeln des Reaktionsgemisches mit Wasser; | |
With acetone Erwaermen des Reaktionsprodukts mit Essigsaeure; | |
With diethyl ether | |
With acetone Erwaermen des Reaktionsprodukts mit Essigsaeure; |
Conditions | Yield |
---|---|
With sulfuric acid; acetic acid at 105℃; |
Conditions | Yield |
---|---|
With acetic acid at 90℃; |
2-tert-butoxy-2-methyl-4H-1,3-benzodioxin-4-one
aspirin
Conditions | Yield |
---|---|
With phosphate buffer In 1,4-dioxane; water at 37℃; Rate constant; |
Conditions | Yield |
---|---|
In 1,4-dioxane; water Rate constant; sodium acetate buffer;; |
Conditions | Yield |
---|---|
In 1,4-dioxane; water Rate constant; sodium acetate buffer;; |
2-oxopropyl 2-acetoxybenzoate
A
Salicylsaeure-2-oxopropylester
B
aspirin
Conditions | Yield |
---|---|
With buffer pH 8.0 In acetonitrile at 37℃; Kinetics; half-life time of hydrolysis at different pH; |
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In dichloromethane at 20℃; | 100% |
With iodine; triethylamine; triphenylphosphine In dichloromethane at 0 - 20℃; | 72% |
With triethylamine; trichloroacetonitrile; triphenylphosphine In tetrahydrofuran at 20℃; for 2h; | 71% |
Conditions | Yield |
---|---|
Stage #1: aspirin With oxalyl dichloride In dichloromethane at 20℃; for 0.5h; Stage #2: In dichloromethane; N,N-dimethyl-formamide at 20℃; for 6h; | 100% |
With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 20℃; for 3h; | 98.5% |
With 2-hydroxypyridin; thionyl chloride In chloroform at 80 - 85℃; | 97% |
aspirin
phosphorous acid trimethyl ester
dimethyl 1-(2-acetoxyphenyl)-1-oxomethanephosphonate
Conditions | Yield |
---|---|
Stage #1: aspirin With oxalyl dichloride In dichloromethane at 20℃; Stage #2: phosphorous acid trimethyl ester at 5 - 20℃; Further stages.; | 100% |
Conditions | Yield |
---|---|
With di-isopropyl azodicarboxylate; triphenylphosphine In tetrahydrofuran at 0℃; for 1h; Reagent/catalyst; Solvent; Temperature; Mitsunobu Displacement; Inert atmosphere; | 100% |
t-butyldimethylsilyl amine
aspirin
tert-butyldimethylsilyl 2-acetoxybenzoate
Conditions | Yield |
---|---|
In neat (no solvent) at 20℃; for 0.5h; Green chemistry; | 100% |
Conditions | Yield |
---|---|
In methanol for 24h; Product distribution / selectivity; | 99% |
Conditions | Yield |
---|---|
With methanol for 1h; Reflux; | 99% |
Conditions | Yield |
---|---|
In xylene acid heated until dissolved (80-85°C), further heating (90-95°C), alcoholate addn., stirring (90-95°C, 3-4 h); drying in vacuum; elem. anal.; | 98.5% |
Conditions | Yield |
---|---|
Ru(η3-CH2=C(Me)CH2)2 In toluene at 80℃; for 20h; | 98% |
Conditions | Yield |
---|---|
With C58H34F18O6P2Ru; silver trifluoromethanesulfonate In toluene at 70℃; for 2h; Inert atmosphere; Schlenk technique; regioselective reaction; | 98% |
Conditions | Yield |
---|---|
In xylene acid heated until dissolved (80-85°C), further heating (90-95°C), alcoholate addn., stirring (90-95°C, 3-4 h); drying in vacuum; elem. anal.; | 97.8% |
Conditions | Yield |
---|---|
In diethyl ether byproducts: C5H6, H2; (vac. or Ar); addn. of acid to V-complex in ether (20°C, 24 h); filtration, washing (ether), drying; elem. anal.; | 97% |
3-hydroxyimino-olean-12-en-28-oic acid
aspirin
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In 1,4-dioxane at 20℃; | 96.9% |
With dicyclohexyl-carbodiimide In chloroform at 0 - 20℃; for 2h; | 62% |
With dicyclohexyl-carbodiimide In 1,4-dioxane at 20℃; |
Conditions | Yield |
---|---|
In xylene acid heated until dissolved (80-85°C), further heating (90-95°C), alcoholate addn., stirring (90-95°C, 3-4 h); drying in vacuum; elem. anal.; | 96.5% |
Conditions | Yield |
---|---|
In xylene acid heated until dissolved (80-85°C), further heating (90-95°C), alcoholate addn., stirring (90-95°C, 3-4 h); drying in vacuum; elem. anal.; | 96% |
2,2'-iminobis[ethanol]
aspirin
bis(2-hydroxy-ethyl)ammonium 2-hydroxy-benzoate
Conditions | Yield |
---|---|
With methanol for 1h; Reflux; | 96% |
Conditions | Yield |
---|---|
Stage #1: aspirin With dicyclohexyl-carbodiimide In chloroform at 5 - 20℃; for 2h; Stage #2: 2-(Diethylamino)ethanol at 20℃; for 3h; | 96% |
Conditions | Yield |
---|---|
Stage #1: aspirin With dicyclohexyl-carbodiimide In chloroform at 5 - 20℃; for 2h; Stage #2: 2-(Diethylamino)ethanol In chloroform at 20℃; for 3h; | 96% |
Stage #1: aspirin With dicyclohexyl-carbodiimide In chloroform at 5 - 20℃; for 2h; Stage #2: 2-(Diethylamino)ethanol In chloroform at 20℃; for 3h; | 96% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dimethyl sulfoxide at 30℃; Temperature; | 96% |
Conditions | Yield |
---|---|
With caesium carbonate In acetonitrile at 20℃; for 6h; chemoselective reaction; | 96% |
exo-7-chloro-endo-7-phenyl-cis-bicyclo<4.2.0>octan-8-one
aspirin
exo-1-<(2-acetoxybenzoyl)oxy>-7-phenyl-cis-bicyclo<4.2.0>octane-8-one
Conditions | Yield |
---|---|
With triethylamine In acetone at 20℃; | 95% |
Conditions | Yield |
---|---|
With water; trifluoroacetic acid at 65℃; for 0.5h; | 95% |
With copper dichloride In methanol; water for 1h; Heating; | 90% |
With sodium hydroxide In 1,4-dioxane at 56.4℃; Rate constant; pH 12; reaction in the presence of aq. cetyltrimethylammonium bromide (CTBA); |
2,3,4,5,6-pentafluorophenol
aspirin
2-acetoxy-benzoic acid pentafluorophenyl ester
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In N,N-dimethyl-formamide at 40℃; for 0.333333h; microwave irradiation; | 95% |
With dicyclohexyl-carbodiimide In 1,4-dioxane for 4h; | 61% |
Conditions | Yield |
---|---|
With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 2h; | 95% |
With potassium carbonate In N,N-dimethyl-formamide at 20℃; | |
Stage #1: aspirin With potassium carbonate In N,N-dimethyl-formamide for 0.5h; Stage #2: propargyl bromide In N,N-dimethyl-formamide at 60℃; for 10h; |
2,6-diaminocaproic acid
aspirin
lysine Acetylsalicylate
Conditions | Yield |
---|---|
In ethanol; water for 0.533333h; Time; | 95% |
In water; acetone at -15 - 15℃; for 1h; Concentration; | 92.4% |
3-hydroxyimino-olean-12-en-28-oic acid methyl ester
aspirin
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In 1,4-dioxane at 20℃; | 93.9% |
With dicyclohexyl-carbodiimide In chloroform at 0 - 20℃; for 2h; | 67% |
With dicyclohexyl-carbodiimide In 1,4-dioxane at 20℃; |
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