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:928-04-1
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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
Cas:928-04-1
Min.Order:1
Negotiable
Type:Other
inquiryOur 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:928-04-1
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
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:928-04-1
Min.Order:1 Kilogram
FOB Price: $9.0 / 99.0
Type:Trading Company
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
Cas:928-04-1
Min.Order:1 Gram
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:928-04-1
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryProduct name 2- acetylenedicarboxylate monopotassium salt Cas number 928-04-1 Molecular formula C4HKO4 Molecular weight 152.15 Appe
Cas:928-04-1
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Other
inquiry1.In No Less 10 years exporting experience. you 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 Specializ
Cas:928-04-1
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:928-04-1
Min.Order:1 Kilogram
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 s
Cas:928-04-1
Min.Order:1 Kilogram
FOB Price: $60.0 / 100.0
Type:Lab/Research institutions
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
Cas:928-04-1
Min.Order:0
Negotiable
Type:Manufacturers
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:928-04-1
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:928-04-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
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
Cas:928-04-1
Min.Order:1 Gram
FOB Price: $1.0
Type:Lab/Research institutions
inquiryWe are leading fine chemicals supplier in China with ISO certificate, Our main business covers the fields below: 1.Noble Metal Catalysts (Pt.Pd...) 2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...) 3.OLED
Cas:928-04-1
Min.Order:1 Gram
FOB Price: $2.0
Type:Lab/Research institutions
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:928-04-1
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
inquiryShandong Mopai Biotechnology 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 chemicals. W
Cas:928-04-1
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
Cas:928-04-1
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
Cas:928-04-1
Min.Order:0
Negotiable
Type:Manufacturers
inquirySuperior quality, moderate price & quick delivery. Appearance:white powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:as per your request Application:Used as Pharmaceutical Intermediates,ect. Transportati
Cas:928-04-1
Min.Order:10 Gram
Negotiable
Type:Trading Company
inquiryWe are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
Cas:928-04-1
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
Cas:928-04-1
Min.Order:0
Negotiable
Type:Other
inquiryhigh purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier
Cas:928-04-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryJinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands
Cas:928-04-1
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
inquiryR & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
Cas:928-04-1
Min.Order:0
Negotiable
Type:Manufacturers
inquiryhigh quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
Cas:928-04-1
Min.Order:0
Negotiable
Type:Manufacturers
inquiryOur clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
Cas:928-04-1
Min.Order:0
Negotiable
Type:Manufacturers
inquiryTAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp
Cas:928-04-1
Min.Order:0
Negotiable
Type:Manufacturers
inquiry1.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 stable re
Cas:928-04-1
Min.Order:0
Negotiable
Type:Other
inquiryAnsciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
Cas:928-04-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirymethanol
acetylene dicarboxylic acid mono potassium salt
cyclopenta-1,3-diene
dimethyl bicyclo[2.2.1]hept-2,5-diene-2,3-dicarboxylate
Conditions | Yield |
---|---|
Stage #1: methanol; acetylene dicarboxylic acid mono potassium salt With hydrogenchloride In 1,4-dioxane for 0.166667h; Stage #2: cyclopenta-1,3-diene In 1,4-dioxane; methanol at 20℃; Diels-Alder Cycloaddition; | 97% |
ethanol
acetylene dicarboxylic acid mono potassium salt
acetylenedicarboxylic acid diethyl ester
Conditions | Yield |
---|---|
With sulfuric acid In benzene for 24h; Heating; | 95% |
Conditions | Yield |
---|---|
85% | |
With hydrogen iodide |
Conditions | Yield |
---|---|
With bromine; sodium bromide; potassium hydroxide In water at 20℃; for 24h; | 80.47% |
Stage #1: acetylene dicarboxylic acid mono potassium salt With bromine; potassium hydroxide Stage #2: With hydrogenchloride |
acetylene dicarboxylic acid mono potassium salt
cyclopenta-1,3-diene
bicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylic acid
Conditions | Yield |
---|---|
With hydrogenchloride In water at 25℃; for 4h; Diels-Alder Cycloaddition; | 79% |
With hydrogenchloride In water for 0.333333h; Ambient temperature; | 38% |
Conditions | Yield |
---|---|
With water-d2 at 100℃; for 2h; | 78% |
chloro-trimethyl-silane
acetylene dicarboxylic acid mono potassium salt
Acetylenedicarboxylic acid monotrimethylsilyl ester
Conditions | Yield |
---|---|
In benzene 1.) cooled (freezing mixture), 10 min, 2.) reflux, 5 h; | 60% |
acetylene dicarboxylic acid mono potassium salt
<3-2H>propiolic acid
Conditions | Yield |
---|---|
With water-d2 a) from RT to reflux, 2 h, b) reflux, 1 h; | 54% |
With water-d2 for 2h; Heating; |
Conditions | Yield |
---|---|
In neat (no solvent) for 6h; Inert atmosphere; Reflux; | 53% |
acetylene dicarboxylic acid mono potassium salt
Conditions | Yield |
---|---|
In water; acetonitrile addn. of potassium salt in water to V-complex in MeCN, stirring (room temp., 3h), pptn.; filtration off, washing (water, MeCN, Et2O), drying (desiccator, 2 h), recrystn. (CH2Cl2/toluene 1/1 v/v); elem. anal.; | 51% |
acetylene dicarboxylic acid mono potassium salt
2,2,3,3-tetradeuterio-succinic acid
Conditions | Yield |
---|---|
With potassium hydroxide; sodium amalgam; water-d2 1.) water, room temperature, 2 d, 2.) 1 h; Multistep reaction; |
acetylene dicarboxylic acid mono potassium salt
C4O4(2-)*Ba(2+)
Conditions | Yield |
---|---|
With sodium hydroxide; barium(II) chloride Multistep reaction; |
acetylene dicarboxylic acid mono potassium salt
water
A
methylammonium carbonate
acetylene dicarboxylic acid mono potassium salt
A
carbon dioxide
B
propiolate
Conditions | Yield |
---|---|
In water at 80℃; under 206266 Torr; Kinetics; Activation energy; Further Variations:; Temperatures; |
acetylene dicarboxylic acid mono potassium salt
Conditions | Yield |
---|---|
With hydrogenchloride; chlorosulfonic acid; potassium hydroxide In methanol; dichloromethane; water; Petroleum ether |
Conditions | Yield |
---|---|
With sodium hydroxide; sodium hydrogencarbonate In water |
Conditions | Yield |
---|---|
In water |
Conditions | Yield |
---|---|
With potassium hydroxide In water |
Conditions | Yield |
---|---|
With potassium hydroxide In water |
acetylene dicarboxylic acid mono potassium salt
2,4-diisopropylthiophenol
Conditions | Yield |
---|---|
With potassium hydroxide In water |
Conditions | Yield |
---|---|
With potassium hydroxide In water |
2,5-Diethoxythiophenol
acetylene dicarboxylic acid mono potassium salt
Conditions | Yield |
---|---|
With potassium hydroxide In water |
5-(3-methylbutoxy)-2-propylthiophenol
acetylene dicarboxylic acid mono potassium salt
Conditions | Yield |
---|---|
With potassium hydroxide In water |
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