Our product has a very high quality and now we are exporting to customers overseas with very positive feedback. With best price, quality and service from Nanjing Sunny, we are confident to set up a very nice cooperation with customers all over the w
Cas:116313-85-0
Min.Order:1 Kilogram
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Type:Trading Company
inquiryDayangchem'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:116313-85-0
Min.Order:1 Kilogram
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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:116313-85-0
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inquiryEntacapone intermediate CAS No.:116313-85-0 3,4-DIHYDROXI-5-NITROBELZALDEHYDE Other name;3-Nitro-4,5-dihydroxybenzaldehyde 1.Specification Appearance:White powder Storage:store in cool and dry Package:acc
Cas:116313-85-0
Min.Order:1 Kilogram
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Type:Other
inquiryhe company has advanced technology, as well as a large number of excellent R & D team, to provide customers from the grams to one hundred kilograms and tons of high-quality products, competitive prices and quality se T rvice Appearance:Whit
Cas:116313-85-0
Min.Order:1 Kilogram
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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
Cas:116313-85-0
Min.Order:1
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Type:Other
inquiryHigh quality. Factory supply. In stock. Best price. 1.Quick response within 24 hours. 2.Best quality in your requirement. 3.We pay more attention on delivery time, and usually ship on time. 4.Free samples will be provided. 5.Ensure specifications an
Cas:116313-85-0
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
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:116313-85-0
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
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:116313-85-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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Cas:116313-85-0
Min.Order:1 Kilogram
FOB Price: $9.0 / 99.0
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:116313-85-0
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:116313-85-0
Min.Order:1 Kilogram
FOB Price: $289.0 / 449.0
Type:Trading Company
inquiryName: 3,4-Dihydroxy-5-Nitrobenzaldehyde Molecular Formula:C7H5NO5 Molecular Weight:183.12 CAS No.:116313-85-0 Appearance:Yellowcrystal Powder Appearance:Yellowcrystal Powder Storage:Store in cool and dry place, away from sun light. Package:25kg A
Cas:116313-85-0
Min.Order:1 Kilogram
FOB Price: $1.0
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:116313-85-0
Min.Order:1 Kilogram
Negotiable
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
Cas:116313-85-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry3-Nitro-4,5-dihydroxybenzaldehyde CAS:116313-85-0 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 qualit
Cas:116313-85-0
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:116313-85-0
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:116313-85-0
Min.Order:0
Negotiable
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
Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
Cas:116313-85-0
Min.Order:1 Gram
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
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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:116313-85-0
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:116313-85-0
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiry3-Nitro-4,5-dihydroxybenzaldehydeAppearance:Pls see the Details Storage:Keep away of light, hot, water, Store in dry, dark and ventilated place Package:according to customers' requirements Application:Steroids, Cosmetics Ingredients, APIs, Intermedia
Product name: 3-Nitro-4,5-Dihydroxybenzaldehyde CAS No.:116313-85-0 Molecule Formula:C7H5NO5 Molecule Weight:183.12 Purity: 99.0% Package: 25kg/drum Description:White powder Manufacture Standards:Enterprise Standard
Cas:116313-85-0
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
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:116313-85-0
Min.Order:1 Metric Ton
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inquiryOur Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
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inquiryProduct Name: 3-Nitro-4,5-dihydroxybenzaldehyde Synonyms: 3,4-dihydroxy-5-nitro-benzaldehyd;3,4-DIHYDROXY-5-NITROBENZALDEHYDE,SPECIFICATION: >98.5%(HPLC UV);3,4-DIHYDROXY-5-NITROBENZALDEHYDE;3-NITRO-4,5-DIHYDROXYBENZALDEHYDE;3,4-Dihydroxy-5-
Cas:116313-85-0
Min.Order:1 Gram
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Type:Lab/Research institutions
inquiryCHENGDU YANXI is a comprehensive manufacturer and an international distribution of products throughout the world. Specialized in Scrap metal, Chemical raw materials, Paper products and color industry. We aim to become leading position in global dis
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Min.Order:1 Kilogram
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Type:Trading Company
inquiryLocated in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service and h
isonitrovanillin
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
With hydrogen bromide; acetic acid In water at 110℃; for 39h; | 100% |
With pyridine; aluminium trichloride In chloroform for 24h; ether cleavage; Heating; | 98% |
With hydrogen bromide; acetic acid In water for 8h; Heating; | 96% |
vanillin
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: diethyl ether; mixture of gaseous nitrogen oxides 2: fuming hydrochloric acid / 140 °C View Scheme | |
Multi-step reaction with 2 steps 1: nitric acid; acetic acid / 0 - 20 °C 2: hydrogen bromide / water / 4 h / Reflux View Scheme | |
Multi-step reaction with 2 steps 1.1: acetic acid; nitric acid / water / 4 h / 15 - 30 °C 2.1: tetrabutylammomium bromide; aluminum (III) chloride / dichloromethane / 0.5 h / 0 - 10 °C / Reflux 2.2: 25 h / 0 - 10 °C / Reflux View Scheme |
Conditions | Yield |
---|---|
With acetic acid In conc. hydrobromic acid; water | 5.66 kg (80%) |
isovanillin
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: nitric acid / acetic acid 2: aluminum (III) chloride; pyridine / chloroform / Reflux View Scheme |
3-hydroxy-4-methoxy-5-nitrobenzaldehyde
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
With pyridine; aluminum (III) chloride In chloroform Reflux; |
N-(3-chlorophenyl)-2-cyanoacetamide
3,4-dihydroxy-5-nitrobenzaldehyde
C16H10ClN3O5
Conditions | Yield |
---|---|
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux; | 98% |
2-cyano-N-(4-methoxyphenyl)acetamide
3,4-dihydroxy-5-nitrobenzaldehyde
C17H13N3O6
Conditions | Yield |
---|---|
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux; | 95% |
3,4-dihydroxy-5-nitrobenzaldehyde
3,4-dihydroxy-5-nitrobenzoic acid
Conditions | Yield |
---|---|
With sodium chlorite; sodium dihydrogenphosphate dihydrate In water; dimethyl sulfoxide at 50℃; for 16.8333h; | 94% |
With xanthin for 20h; pH=7.4; Enzymatic reaction; |
3,4-dihydroxy-5-nitrobenzaldehyde
benzyl bromide
3-benzyloxy-4-hydroxy-5-nitro-benzaldehyde
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 140℃; for 48h; Alkylation; | 93% |
With sodium hydride In N,N-dimethyl-formamide | 85% |
Stage #1: 3,4-dihydroxy-5-nitrobenzaldehyde With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; Inert atmosphere; Stage #2: benzyl bromide In N,N-dimethyl-formamide; mineral oil at 0℃; for 1h; Inert atmosphere; Stage #3: With acetic acid In N,N-dimethyl-formamide; mineral oil at 20℃; Inert atmosphere; | 81% |
3,4-dihydroxy-5-nitrobenzaldehyde
2-cyano-N-[3-(2-cyanoacetylamino)propyl]acetamide
Conditions | Yield |
---|---|
With 3-amino propanoic acid In ethanol for 4.5h; Heating; | 92% |
2-cyano-N-m-tolylacetamide
3,4-dihydroxy-5-nitrobenzaldehyde
C17H13N3O5
Conditions | Yield |
---|---|
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux; | 89% |
2-(pyrimidin-4-yl)acetonitrile
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
With ammonium acetate In methanol at 80℃; for 4h; | 89% |
3-(N,N-diphenylamino)-3-oxopropanenitrile
3,4-dihydroxy-5-nitrobenzaldehyde
C22H15N3O5
Conditions | Yield |
---|---|
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux; | 88% |
2-(pyrimidin-2-yl)acetonitrile
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
With ammonium acetate In methanol for 5h; Reflux; | 88% |
3,4-dihydroxy-5-nitrobenzaldehyde
ethylene dibromide
8-nitro-2,3-dihydro-benzo[1,4]dioxine-6-carbonitrilebenzonitrile
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 5h; | 87% |
5-chlorobenzofuran-3(2H)-one
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
With hydrogenchloride In water; isopropyl alcohol at 80℃; | 86% |
malonic acid
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
With pyridine; aniline In toluene for 2h; Reflux; | 84.6% |
With piperidine; pyridine at 60℃; for 48h; Knoevenagel Condensation; | 40% |
piperidine
2-cyano-N,N-diethylacetamide
3,4-dihydroxy-5-nitrobenzaldehyde
entacapone; piperidine salt
Conditions | Yield |
---|---|
With acetic acid In isopropyl alcohol for 3h; Product distribution / selectivity; Heating / reflux; | 79.7% |
4-cyanoacetylmorpholine
3,4-dihydroxy-5-nitrobenzaldehyde
C14H13N3O6
Conditions | Yield |
---|---|
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux; | 78% |
With ammonium acetate In methanol for 5h; Reflux; | 19% |
3,4-dihydroxy-5-nitrobenzaldehyde
cyclopentanone
2,5-bis(3,4-dihydroxy-5-nitrobenzylidene)cyclopentanone
Conditions | Yield |
---|---|
With hydrogenchloride In methanol at 5℃; | 77% |
4.4 g (78%) |
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
With ammonium acetate In methanol for 3h; Reflux; | 76% |
2-cyano-N,N-diethylacetamide
3,4-dihydroxy-5-nitrobenzaldehyde
entacapone
Conditions | Yield |
---|---|
Stage #1: 2-cyano-N,N-diethylacetamide; 3,4-dihydroxy-5-nitrobenzaldehyde With piperidine In 1,2-dimethoxyethane; n-heptane for 15 - 25h; Heating / reflux; Stage #2: In dichloromethane at 25 - 35℃; for 24h; Product distribution / selectivity; | 75% |
With piperidine In isopropyl alcohol for 12 - 15h; Heating / reflux; | 75.5% |
Stage #1: 2-cyano-N,N-diethylacetamide; 3,4-dihydroxy-5-nitrobenzaldehyde With acetic acid; diethylamine In toluene Knoevenagel Condensation; Stage #2: With hydrogen bromide In acetic acid; toluene at 20℃; | 73.8% |
2-cyano-N,N-diethylacetamide
3,4-dihydroxy-5-nitrobenzaldehyde
A
entacapone
B
(2Z)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide
Conditions | Yield |
---|---|
Stage #1: 2-cyano-N,N-diethylacetamide; 3,4-dihydroxy-5-nitrobenzaldehyde With piperidine In isopropyl alcohol for 12 - 15h; Heating / reflux; Stage #2: With acetic acid In isopropyl alcohol at 20℃; | A 75.5% B n/a |
piperidine; methylamine hydrochloride In butan-1-ol at 82℃; for 4 - 5h; Product distribution / selectivity; | |
piperidine; methylamine hydrochloride In i-Amyl alcohol at 89 - 90℃; for 3h; Product distribution / selectivity; |
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
With dihydrogen peroxide; sodium hydroxide In methanol; water at 60℃; for 3h; | 75% |
3,4-dihydroxy-5-nitrobenzaldehyde
2-(pyridazin-3-yl)acetonitrile
Conditions | Yield |
---|---|
With ammonium acetate In methanol at 80℃; for 4h; | 75% |
3,4-dihydroxy-5-nitrobenzaldehyde
diethyl malonate
Conditions | Yield |
---|---|
With piperidine; pyridine at 60℃; for 7h; Knoevenagel Condensation; | 69.01% |
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
With ammonium acetate In methanol for 5h; Reflux; | 69% |
3,4-dihydroxy-5-nitrobenzaldehyde
acetophenone
3-(3,4-dihydroxy-5-nitrophenyl)-1-phenylprop-2-en-1-one
Conditions | Yield |
---|---|
With hydrogenchloride In methanol | 68% |
hydrogen ethyl malonate
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
With piperidine; pyridine at 60℃; for 24h; Knoevenagel Condensation; | 67.44% |
neopentyl α-cyanoacetate
3,4-dihydroxy-5-nitrobenzaldehyde
Conditions | Yield |
---|---|
67% |
1-cyanoacetylpiperidine
3,4-dihydroxy-5-nitrobenzaldehyde
(2E)-3-(3,4-dihydroxy-5-nitrophenyl)-2-(piperidin-yl-1-carbonyl)prop-2-ennitrile
Conditions | Yield |
---|---|
With piperidine; acetic acid In toluene Knoevenagel condensation; Reflux; | 67% |
With ammonium acetate In methanol for 3h; Reflux; | 13% |
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