The 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:52671-72-4
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inquiryWith our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin
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FOB Price: $6.0 / 9.0
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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
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Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
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inquiryAs 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 according to the contract research and development services for the fine chemicals, ph
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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
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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
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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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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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inquiryZhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
Cas:52671-72-4
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
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:52671-72-4
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inquiryTriumph 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:
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inquiryGOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
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Min.Order:1 Kilogram
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inquiry1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification
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inquiryLower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
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inquiry1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.
Cas:52671-72-4
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Type:Lab/Research institutions
inquirybest seller Application:API
Cas:52671-72-4
Min.Order:0
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Type:Manufacturers
inquiry1,we produce and sell good chemicals around the world.2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%.3,our staff consists of highly qualified in
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inquiryhight degree of purity Application:Fine chemical intermediates, used as the main raw material for he synthesis of various pesticides, medicines, surfactants, polymer monomers, Ond Ontifungal agents
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Type:Lab/Research institutions
inquirybest seller Application:API
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inquiryWe are committed to providing our customers with the best products and services at the most competitive prices.Appearance:clear oily liquid Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as prim
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inquiry1,4,5,8-NAPHTHALENETETRACARBOXYLIC ACID 1,8-MONOANHYDRIDEAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
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inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:52671-72-4
Min.Order:0
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inquiryhight degree of purityAppearance:COA mentioned Storage:COA mentioned Package:Standard or custom package Application:hight degree of purity Transportation:Express/Sea/Air Port:Any port in China
Cas:52671-72-4
Min.Order:0
Negotiable
Type:Other
inquiryChangzhou Helios Biochemical Co., Ltd is a leading manufacturer and supplier for medical intermediates and pesticide intermediates . We specialize in custom synthesis of benzene ring, pyridine and pyrimidine derivatives to help customers to accelerat
Cas:52671-72-4
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Type:Lab/Research institutions
inquiryThe factory supplies Application:manufacturing supplies
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Type:Trading Company
inquirybest seller Application:API
Cas:52671-72-4
Min.Order:0
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Type:Trading Company
inquiryhight degree of purityAppearance:COA mentioned Storage:COA mentioned Package:Standard or custom package Application:hight degree of purity Transportation:Express/Sea/Air Port:Any port in China
Cas:52671-72-4
Min.Order:0
Negotiable
Type:Other
inquiryCas:52671-72-4
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Type:
inquirynaphthalene-1,4,5,8-tetracarboxylic acid
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
Conditions | Yield |
---|---|
at 30℃; | 80% |
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
Conditions | Yield |
---|---|
With phosphoric acid pH=6.2 - 6.4; |
1,4,5,8-naphthalenetetracarboxylic dianhydride
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
Conditions | Yield |
---|---|
With potassium hydroxide pH=6.4; | |
In water Equilibrium constant; Acid hydrolysis; |
tetrasodium salt of 1,4,5,8-naphthalene tetracarbocyclic acid
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: aq. NaOH 2: 80 percent / 30 °C View Scheme |
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
trimethyltin(IV)chloride
Conditions | Yield |
---|---|
Stage #1: monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid; trimethyltin(IV)chloride With potassium hydroxide In water pH=Ca. 5 - 6; Autoclave; Stage #2: In water at 130℃; for 72h; Autoclave; | 40% |
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
Trimethylenediamine
Conditions | Yield |
---|---|
Stage #1: monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid; Trimethylenediamine With phosphoric acid In water for 24h; pH=6.2 - 6.4; Heating; Stage #2: With acetic acid pH=5.0; |
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
methylamine hydrochloride
Conditions | Yield |
---|---|
With phosphoric acid at 110℃; pH=6.4; |
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
benzyl N-(2-aminoethyl)carbamate hydrochloride
2-(2-benzyloxycarbonylamino-ethyl)-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinoline-6,7-dicarboxylic acid
Conditions | Yield |
---|---|
With phosphoric acid at 110℃; pH=6.4; |
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
isobutylamine
Conditions | Yield |
---|---|
With phosphoric acid at 110℃; pH=6.4; |
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
1,4,5,8-naphthalenetetracarboxylic dianhydride
Conditions | Yield |
---|---|
In water Equilibrium constant; Acid hydrolysis; |
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
1,3-bis(1,8-naphthalene-tetracarboxylic-monoimide-4,5-monohydro)-propane
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: phosphoric acid / H2O / 24 h / pH 6.2 - 6.4 / Heating 1.2: acetic acid / pH 5.0 2.1: 9.5 g / acetic anhydride / Heating View Scheme |
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: phosphoric acid / H2O / 24 h / pH 6.2 - 6.4 / Heating 1.2: acetic acid / pH 5.0 2.1: 9.5 g / acetic anhydride / Heating 3.1: 2.7 percent / 1,4-diaza[2.2.2]bicyclooctane / 1-methyl-pyrrolidin-2-one; dimethylformamide / 54 h / 100 °C View Scheme |
monoanhydride of 1,4,5,8-naphthalenetetracarboxylic acid
naphthalene-1,4,5,8-tetracarboxylic acid
1,4,5,8-naphthalenetetracarboxylic dianhydride
Conditions | Yield |
---|---|
In N,N-dimethyl acetamide; toluene at 111℃; for 2h; Solvent; Temperature; Inert atmosphere; | 73 g |
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