Welcome 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:142-45-0
Min.Order:0 Metric Ton
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Type:Manufacturers
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
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
Cas:142-45-0
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
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:142-45-0
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
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
Cas:142-45-0
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
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:142-45-0
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
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 ♦ W
Cas:142-45-0
Min.Order:1 Kilogram
FOB Price: $8.0 / 10.0
Type:Trading Company
inquiryCAS Number 142-45-0 Product Name Acetylenedicarboxylic Acid Synonyms 2-butynedioic Acid; Acetaylenedicarboxylic Acid; But-2-yned
Hebei Yanxi Chemical Co., Ltd. is a professional research, development and production of lead acetate benzene acetamide enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low car
Cas:142-45-0
Min.Order:1 Metric Ton
FOB Price: $1.0 / 2.0
Type:Manufacturers
inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:Almost white crystalline Storage:Store in sealed containers
Cas:142-45-0
Min.Order:100 Gram
Negotiable
Type:Other
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:142-45-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryProduct Name: Acetylenedicarboxylic acid Synonyms: ACETYLENEDICARBOXYLIC ACID FREE ACID;BUTYNEDIOIC ACID ACETYLENE DICARBOXYLIC ACID 99%;Acetylenedicarboxylic acid,98%;Acetylen-dicarbonsαure;But-2-ynedioic acid;2-Butynedioate;NSC-1903;NSC
Cas:142-45-0
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryAcetylenedicarboxylic acid CAS:142-45-0 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 organic
Cas:142-45-0
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:142-45-0
Min.Order:1 Kilogram
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Type:Lab/Research institutions
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:142-45-0
Min.Order:0
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Type:Lab/Research institutions
inquiryMinimum 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,MoneyGram Package 10g,20g,50g,100g,500g,1KGS,
Cas:142-45-0
Min.Order:10 Gram
Negotiable
Type:Trading Company
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:142-45-0
Min.Order:0
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:142-45-0
Min.Order:0 Metric Ton
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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:142-45-0
Min.Order:0
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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:142-45-0
Min.Order:1 Gram
FOB Price: $1.0
Type:Lab/Research institutions
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:142-45-0
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquirySuperior quality, moderate price & quick delivery. Appearance:colourless or light yellow liquid Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:25kg/drum, or as per your request. Application:Used as Pharmaceu
Cas:142-45-0
Min.Order:1 Kilogram
Negotiable
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:142-45-0
Min.Order:1 Kilogram
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Type:Lab/Research institutions
inquiryProduct Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,
Cas:142-45-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryHigh quality, competitive price, fast delivery and first-class service we possesses have won the trust and praise of customers. Standard: BP/USP/EP The purity is equal or greater than 99%. As a supplier, we can provide high-quality products. Cle
Cas:142-45-0
Min.Order:1 Metric Ton
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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:142-45-0
Min.Order:1 Metric Ton
FOB Price: $7.0 / 8.0
Type:Trading Company
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
We produce carbomer by our own factory,carbomer 940 is our best seller.It is used for cosmetic and medical.And we also become agent for lubrizol.Our carbomer 940 get high viscosity and good transparency.The price will depond on the market,surely supp
Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Cas:142-45-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
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
Conditions | Yield |
---|---|
With sodium carbonate; silver nitrate; triphenylphosphine In acetonitrile at 60℃; under 15001.5 Torr; for 20h; Temperature; Pressure; Reagent/catalyst; Solvent; Sealed tube; | 98% |
2,3-dibromosuccinic acid
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
With potassium hydroxide In methanol at 90℃; | 87% |
Conditions | Yield |
---|---|
With sodium hydroxide; sodium hypochlorite; 4-acetylamino-2,2,6,6-tetramethyl-1-piperidinoxy In water at 5 - 10℃; pH=8.5 - 10; | 71% |
at 20℃; for 3h; electrolysis: nickel net anode, cylindrical stainless steel cathode; electrolyte: 1M NaOH/H2O; | 55% |
With chromium(III) oxide; sulfuric acid; acetone | |
With sulfuric acid bei der Oxydation an einer Blei(IV)-Anode; |
Conditions | Yield |
---|---|
Stage #1: Vinyl bromide With n-butyllithium In diethyl ether at 0℃; Stage #2: carbon dioxide In diethyl ether Further stages.; | 34% |
Conditions | Yield |
---|---|
With diethyl ether at 0℃; und anschliessend mit festem CO2; |
Conditions | Yield |
---|---|
bei der Umsetzung anschliessend mit festem Kohlendioxid; |
chlorofumaryl chloride
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
With potassium hydroxide; ethanol das Kaliumsalz entsteht; |
Conditions | Yield |
---|---|
With alkali |
Conditions | Yield |
---|---|
With alkali |
sodium acetylide
methylammonium carbonate
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
With seasand |
2,2-Dibromo-succinic acid
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
With barium dihydroxide | |
With sodium hydroxide | |
With calcium hydroxide |
n-pentylsodium
methylammonium carbonate
ethyl vinyl ether
A
Acetylenedicarboxylic acid
B
α-Ethoxyacrylic acid
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
With potassium hydroxide In ethanol for 2h; Dehydrobromination; Heating; |
methylammonium carbonate
Acetylenedicarboxylic acid
methylammonium carbonate
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
With seasand |
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
With sodium hydroxide | |
With calcium hydroxide | |
With barium dihydroxide |
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
With potassium hydroxide |
n-butyllithium
Vinyl bromide
diethyl ether
carbon dioxide
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
at 0℃; |
n-butyllithium
Vinyl bromide
carbon dioxide
A
Propiolic acid
B
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
at 14℃; |
meso-2,3-dibromosuccinic acid
A
hydrogen bromide
B
Acetylenedicarboxylic acid
(+-)-2,3-dibromosuccinic acid
A
hydrogen bromide
B
Acetylenedicarboxylic acid
meso-2,3-dibromosuccinic acid
A
hydrogen bromide
B
Acetylenedicarboxylic acid
meso-2,3-dibromosuccinic acid
A
hydrogen bromide
B
Acetylenedicarboxylic acid
(+-)-2,3-dibromosuccinic acid
A
hydrogen bromide
B
Acetylenedicarboxylic acid
meso-2,3-dibromosuccinic acid
A
hydrogen bromide
B
Acetylenedicarboxylic acid
cyclopenta-1,3-diene
Acetylenedicarboxylic acid
bicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylic acid
Conditions | Yield |
---|---|
In 1,4-dioxane at 20℃; for 12h; Diels-Alder cycloaddition; | 100% |
In diethyl ether Ambient temperature; | 85% |
Stage #1: Acetylenedicarboxylic acid With (2-bromophenyl)boronic acid In dichloromethane at 25℃; for 0.166667h; Inert atmosphere; Stage #2: cyclopenta-1,3-diene In dichloromethane at 25℃; for 48h; Diels-Alder cycloaddition; Inert atmosphere; | 84% |
8-azido-1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooctane
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
In acetone for 6h; Heating; | 100% |
6-azido-1,1,1,2,2,3,3,4,4-nonafluorohexane
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
In acetone for 6h; Heating; | 100% |
1-azido-1H,1H,2H,2H-perfluorodecane
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
In acetone for 6h; Heating; | 100% |
Acetylenedicarboxylic acid
<2H6>γ-Butyrolactone
Conditions | Yield |
---|---|
With deuterium; Ru4H4(CO)8(PBu3)4 In tetrahydrofuran at 180℃; for 48h; | 100% |
tert-butyl 3-(2-(2-(2-aminoethoxyl)ethoxy)ethoxy)propanoate
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
With 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride In 1-methyl-pyrrolidin-2-one at 0℃; for 6h; | 100% |
With 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride In 1-methyl-pyrrolidin-2-one at 0℃; for 6h; | |
With 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride In 1-methyl-pyrrolidin-2-one at 0℃; for 6h; | 2.26 g |
Conditions | Yield |
---|---|
In ethanol at 20℃; for 1h; | 99% |
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; 1,8-diazabicyclo[5.4.0]undec-7-ene; 1,4-di(diphenylphosphino)-butane In dimethyl sulfoxide at 110℃; for 3h; | 98% |
N-(selenocarbamido)piperidine
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
In ethanol at 20℃; for 1h; | 97% |
(S)-2-Octanol
Acetylenedicarboxylic acid
bis[(1S)-1-methylheptyl] acetylenedicarboxylate
Conditions | Yield |
---|---|
With sulfuric acid In tetrahydrofuran for 14h; Reflux; | 97% |
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; 1,8-diazabicyclo[5.4.0]undec-7-ene; 1,4-di(diphenylphosphino)-butane In dimethyl sulfoxide at 110℃; for 3h; | 97% |
Conditions | Yield |
---|---|
In ethanol at 20℃; for 1h; | 96% |
Acetylenedicarboxylic acid
Conditions | Yield |
---|---|
With sodium hydroxide In methanol at 20℃; for 2h; | 96% |
With sodium hydroxide In methanol; water |
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