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:19829-72-2
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryHigh quality and best price of 2,3-Dihydroxyterephthalic acid from Henan Tianfu Chemical: Henan Tianfu Chemical Co.,LTD 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 a
Cas:19829-72-2
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:19829-72-2
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:19829-72-2
Min.Order:1 Kilogram
FOB Price: $7.0 / 9.0
Type:Trading Company
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:19829-72-2
Min.Order:1 Gram
Negotiable
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:19829-72-2
Min.Order:10 Gram
Negotiable
Type:Lab/Research institutions
inquirySAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in
Cas:19829-72-2
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryHigh quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use
Cas:19829-72-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
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:19829-72-2
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryThe process is mature and can be mass produced to 100 kg, with good quality and purity up to 99%.The product has a large stock and can be supplied stably. Package:bottle Application:Drug R&D Transportation:Sealed drying(25℃) Port:ShangHai
Cas:19829-72-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryAcmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
Cas:19829-72-2
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
inquiryFredchem focus on CRO/CMO business and its own R&D of API/Intermediates Package:Kilograms/MT Application:Pharmaceutical field Transportation:According to customer request Port:Shanghai
Cas:19829-72-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryOur own factory produces direct sales with absolute price advantage Application:Pharmaceutical industry Transportation:By sea Port:Shanghai/tianjin
Cas:19829-72-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWe product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Chemical intermediate
2,3-Dihydroxyterephthalic acid cas 19829-72-2Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Cas:19829-72-2
Min.Order:0
Negotiable
Type:Other
inquiryR & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou
Cas:19829-72-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirygood quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:250mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any po
bulk?production Application:Pharmaceutical intermediates
Cas:19829-72-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Best 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
R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou
Cas:19829-72-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWe keep a long-term friendly cooperation with many famous universities and research institutions in China, which provide us strong support on the research and development for new products. Appearance:white powder Storage:store in dry and cool place
Cas:19829-72-2
Min.Order:100 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryThe company is supplying production of designs, syntheses and material ligands. Package:1g;5g; Application:Catalytic;adsorption separation;hydrogen storage;drug carrier
Conditions | Yield |
---|---|
Stage #1: carbon dioxide; benzene-1,2-diol With potassium carbonate at 230 - 250℃; under 19652.1 - 60507.9 Torr; for 19.25h; Stage #2: With hydrogenchloride In water for 5h; | 95% |
With sodium hydroxide 1.) MeOH, r.t., 15 min, 2.) 1100 psi, 195-200 deg C, 90 h; | 56% |
Stage #1: benzene-1,2-diol With sodium hydroxide Stage #2: carbon dioxide at 200℃; under 60800 Torr; for 48h; | 54% |
potassium hydrogencarbonate
benzene-1,2-diol
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
With 1,2,4-Trichlorobenzene at 225℃; for 14h; Autoclave; | 73% |
3,6-dicyanocatechol
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
With sodium hydroxide |
2,3-dimethoxyterephthalic acid
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
With hydrogen bromide |
Conditions | Yield |
---|---|
at 225℃; |
benzene-1,2-diol
A
2,3-Dihydroxybenzoic acid
B
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
at 200℃; im Rohr; |
benzene-1,2-diol
glycerol
A
2,3-Dihydroxybenzoic acid
B
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
at 180℃; |
carbon dioxide
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
unter hohem Druck und man erhitzt das gebildete Salz bei Gegenwart von CO2 im Autoklaven auf 210grad; |
benzene-1,2-diol
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
at 200℃; im Einschlussrohr; |
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
With glycerol at 210℃; |
methylammonium carbonate
A
3-methoxysalicylic acid
B
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
at 230℃; |
A
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
at 300℃; |
carbon dioxide
sodium 2-methoxyphenolate
A
3-methoxysalicylic acid
B
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
at 230℃; |
3,6-dihydroxymethylveratrol
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: aq. NaOH solution; aqueous potassium permanganate solution 2: aqueous hydrobromic acid View Scheme |
methanol
2,3-dihydroxyterephthalic acid
dimethyl 2,3-dihydroxyterephthalate
Conditions | Yield |
---|---|
With chloro-trimethyl-silane for 16h; Heating; | 86% |
With hydrogenchloride Fischer esterification; | 75% |
With sulfuric acid Reflux; | 60% |
ethanol
2,3-dihydroxyterephthalic acid
water
cobalt(II) diacetate tetrahydrate
Conditions | Yield |
---|---|
at 140℃; for 72h; pH=13; | 85% |
Conditions | Yield |
---|---|
With sulfuric acid Reflux; | 70% |
methanol
N-formyldiethylamine
2,3-dihydroxyterephthalic acid
water
Conditions | Yield |
---|---|
With hydrogenchloride at 120℃; for 24h; Autoclave; | 53% |
2,3-dihydroxyterephthalic acid
benzyl chloride
Conditions | Yield |
---|---|
With potassium carbonate; potassium iodide In N,N-dimethyl-formamide at 67℃; for 72h; | 48% |
2,3-dihydroxyterephthalic acid
dimethyl sulfate
dimethyl 2,3-dimethoxyterephthalate
Conditions | Yield |
---|---|
With potassium carbonate In acetone Heating; |
n-Octylamine
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
Stage #1: 2,3-dihydroxyterephthalic acid With thionyl chloride In 1,4-dioxane for 6h; Heating; Stage #2: n-Octylamine With triethylamine Further stages.; |
2,3-dihydroxyterephthalic acid
B
2,3-dioxosulfinylterephthaloyl chloride
Conditions | Yield |
---|---|
With thionyl chloride In 1,4-dioxane at 45℃; for 12h; |
2,3-dihydroxyterephthalic acid
ethylamine
N,N'-diethyl-2,3-dihydroxyterephthalamide
Conditions | Yield |
---|---|
Stage #1: 2,3-dihydroxyterephthalic acid With thionyl chloride In 1,4-dioxane for 6h; Heating; Stage #2: ethylamine With triethylamine Further stages.; |
2,3-dihydroxyterephthalic acid
2,3-dioxosulfinylterephthaloyl chloride
Conditions | Yield |
---|---|
With thionyl chloride In chloroform Heating; |
2,3-dihydroxyterephthalic acid
1,4-bis(hydroxymethyl)-2,3-dihydroxybenzene
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: conc. H2SO4 / 8 h / Heating 2: 80 percent / LiAlH4 / tetrahydrofuran / 4 h / 0 - 20 °C View Scheme |
2,3-dihydroxyterephthalic acid
dimethyl 2,3-dimethoxyterephthalate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: conc. H2SO4 / 8 h / Heating 2: 80 percent / K2CO3 / acetonitrile / 48 h / Heating View Scheme | |
Multi-step reaction with 2 steps 1: 75 percent / HCl 2: 100 percent / K2CO3 View Scheme |
2,3-dihydroxyterephthalic acid
dimethyl 2,3-bis(benzyloxy)terephthalate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: conc. H2SO4 / 8 h / Heating 2: 62 percent / K2CO3 / acetonitrile / 18 h / Heating View Scheme |
2,3-dihydroxyterephthalic acid
1,4-bis(chloromethyl)-2,3-dihydroxybenzene
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: conc. H2SO4 / 8 h / Heating 2: 80 percent / LiAlH4 / tetrahydrofuran / 4 h / 0 - 20 °C 3: 90 percent / SOCl2; 2,6-lutidine / CH2Cl2 / 1 h / 20 °C View Scheme |
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: conc. H2SO4 / 8 h / Heating 2: 57 percent / K2CO3; NaI / acetonitrile / 24 h / Heating View Scheme |
2,3-dihydroxyterephthalic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: conc. H2SO4 / 8 h / Heating 2: 62 percent / K2CO3 / acetonitrile / 18 h / Heating 3: 70 percent / LiAlH4 / tetrahydrofuran / 4 h / 0 - 20 °C 4: 100 percent / SOCl2 / CH2Cl2 / 1 h / Heating View Scheme |
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View