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:28664-35-9
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryWelcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
Cas:28664-35-9
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryCAS No.: 28664-35-9 Other Names: 4,5-Dimethyl-3-Hydroxy-2,5-Dihydrofuran-2-One MF: C6H8O3 EINECS No.: 249-136-4 FEMA No.:
Cas:28664-35-9
Min.Order:1 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
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:28664-35-9
Min.Order:1 Gram
FOB Price: $0.1
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
Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block
Cas:28664-35-9
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryLIDE PHARMACEUTICALS LIMITED is a professional chemicals and APIs leading manufacturer in China. Our core business line covers APIs, Intermediates, Herb extract, etc.
Cas:28664-35-9
Min.Order:1 Kilogram
FOB Price: $0.9 / 1.0
Type:Lab/Research institutions
inquiryOur advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be sent
Cas:28664-35-9
Min.Order:1 Kilogram
FOB Price: $9.0 / 99.0
Type:Trading Company
inquiryOur company was built in 2009 with an ISO certificate.In the past 5 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:28664-35-9
Min.Order:1 Kilogram
Negotiable
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:28664-35-9
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:28664-35-9
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
inquiry1. Product advantages High purity, all above 98.5%, no impurities after dissolution We will test each batch to ensure quality OEM and private brand services designed for free Various cap colors available We can also provide MT1 peptide powd
Cas:28664-35-9
Min.Order:1 Kilogram
FOB Price: $50.0 / 100.0
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:28664-35-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryProduct Name: 4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one CAS: 28664-35-9 MF: C6H8O3 MW: 128.13 EINECS: 249-136-4 Mol File: 28664-35-9.mol 4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one Structure 4,5-Dimethyl-3-hydroxy-2,5-dihydr
Cas:28664-35-9
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryAbout Our Group Since 1996 when our factory was put into production to year of 2020, our group has successively invested in more than 52 factories with shares and subordinates.We focus on manufacture Pharm & c
Cas:28664-35-9
Min.Order:500 Kilogram
FOB Price: $1.0 / 2.0
Type:Lab/Research institutions
inquiry4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one CAS:28664-35-9 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
Cas:28664-35-9
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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:28664-35-9
Min.Order:1 Kilogram
Negotiable
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
Cas:28664-35-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryminimum order qty. 10 gram supply
Cas:28664-35-9
Min.Order:10 Gram
Negotiable
Type:Trading Company
inquiryBest quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia
Triumph 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 Business Custom Synthesis: Trading(Raw Mater
Cas:28664-35-9
Min.Order:0 Metric Ton
FOB Price: $18.0 / 20.0
Type:Lab/Research institutions
inquiryAdvantage 1: The product passed the professional production process and quality inspection, the purity is 99% +. 2: Highly qualified engineers to provide technical documents and service. 3: We could provide sample for your test. 4: High qualit
Cas:28664-35-9
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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
Cas:28664-35-9
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
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
Cas:28664-35-9
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirySupply lowest price of 28664-35-9 on hot selling Molecular Formula C6H8O3 Molar Mass 128.13 Density 1.049g/mLat 25°C Melting Point 26-29°C(lit.) Boling Point 184°C(lit.)
Cas:28664-35-9
Min.Order:1 Gram
Negotiable
Type:Other
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
Cas:28664-35-9
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryWe are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov
Cas:28664-35-9
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryGMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
Cas:28664-35-9
Min.Order:1 Milligram
Negotiable
Type:Trading Company
inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
Cas:28664-35-9
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryConditions | Yield |
---|---|
Stage #1: Ethyl 2-oxobutanoate; acetaldehyde With potassium carbonate In ethanol at 25℃; for 3h; Stage #2: With hydrogenchloride In water for 0.5h; | 70% |
With potassium carbonate In ethanol at 25℃; for 4h; Large scale; | 18.5 kg |
5-(2-hydroxy-1-methylpropylidene)-2,4-oxazolidinedione
sotolone
Conditions | Yield |
---|---|
With hydrogenchloride In water at 100℃; for 3.5h; | 63% |
sotolone
Conditions | Yield |
---|---|
With K-10 In 1,1,2-trichloroethane for 1h; Heating; | 45% |
sotolone
Conditions | Yield |
---|---|
With phosphate buffer; 2-oxopropanal at 100℃; for 1h; | 40.2% |
With phosphate buffer; 2-oxopropanal at 100℃; for 1h; Product distribution; Mechanism; var. carbonyl reactant; var. pH; | 40.2% |
(2S,3R)-2-amino-4-hydroxy-3-methylpentanoic acid
A
sotolone
B
3-hydroxy-2-methylbutanal
Conditions | Yield |
---|---|
With phosphate buffer; 2-oxopropanal at 100℃; for 10h; | A 23.8% B n/a |
With phosphate buffer; 2-oxopropanal at 100℃; for 10h; Product distribution; Mechanism; var. carbonyl reactant; var. pH, temp., time and conc. of reactants; | A 23.8% B n/a |
5-(2-hydroxy-1-methylpropylidene)-2,4-oxazolidinedione
sotolone
Conditions | Yield |
---|---|
With hydrogenchloride In water at 100℃; |
(R)-3-hydroxy-4,5-dimethyl-2(5H)-furanone
sotolone
Conditions | Yield |
---|---|
In ethanol Acidic aq. solution; |
Conditions | Yield |
---|---|
With acetic acid In ethanol for 3h; Heating; | 36% |
diazomethane
sotolone
3-methoxy-4,5-dimethyl-5H-furan-2-one
Conditions | Yield |
---|---|
In diethyl ether |
sotolone
A
(R)-3-hydroxy-4,5-dimethyl-2(5H)-furanone
B
(S)-3-hydroxy-4,5-dimethyl-2(5H)-furanone
Conditions | Yield |
---|---|
Resolution of racemate; | |
With CHIRALPAK IA In ethyl acetate; isopropyl alcohol at 25℃; Resolution of racemate; optical yield given as %ee; |
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