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 according to the contract research and development services for t
Cas:110-52-1
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
inquiry1,4-Dibromobutane Basic information Product Name: 1,4-Dibromobutane Synonyms: 1,4-BUTYLENE DIBROMIDE;1,4-BUTYLENE BROMIDE;1,4-DIBROMOBUTANE;TETRAMETHYLENDIBROMID;TE
Items Standard Result Appearance Colorless,transparent liquid Complies Content% ≥99.90
Cas:110-52-1
Min.Order:1 Kilogram
FOB Price: $3.0 / 10.0
Type:Manufacturers
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:110-52-1
Min.Order:0 Metric Ton
Negotiable
Type:Manufacturers
inquiryProduct Description Product website: http://www.finerchem.com Product Name 1,4-Dibromobutane CAS No. 110-52-1 Appearance Colorless transparent liquid
Cas:110-52-1
Min.Order:1 Gram
FOB Price: $8.0
Type:Lab/Research institutions
inquiry1,4-Dibromobutane Appearance: colorless or yellow liquid Melting point: -20°C Boiling point: 197°C Flash point: Relative Density:
Cas:110-52-1
Min.Order:1 Kilogram
FOB Price: $2.0 / 3.0
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
1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
Cas:110-52-1
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
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:110-52-1
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:110-52-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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:110-52-1
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:110-52-1
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:110-52-1
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
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 email in t
Cas:110-52-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryHebei yanxi chemical co. LTD. has expanded a compositive entity from initially only as a small manufacturer. The company dedicated to the development, production and marketing of chemicals. After many years of efforts, we have established stable an
Cas:110-52-1
Min.Order:1 Metric Ton
FOB Price: $1.0 / 2.0
Type:Trading Company
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:110-52-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryWuhan hanweishi Pharmchem Co., Ltd(Hanways chempharm) is a specialized company concentrating on the R&D, production, marketing and technical service of APIs and pharmaceutical intermediates. The leading products range are APIs, Hormones, Peptides
Cas:110-52-1
Min.Order:100 Kilogram
FOB Price: $1.0 / 5.0
Type:Trading Company
inquiryProduct Name: 1,4-Dibromobutane Synonyms: 1,4-BUTYLENE DIBROMIDE;1,4-BUTYLENE BROMIDE;1,4-DIBROMOBUTANE;TETRAMETHYLENDIBROMID;TETRAMETHYLENE BROMIDE;TETRAMETHYLENE DIBROMIDE;1,4-Dibrombutan;1,4-dibromo-butan CAS: 110-52-1 MF: C4H8Br2 MW: 215.
Cas:110-52-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryOur company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present
Cas:110-52-1
Min.Order:25 Kilogram
FOB Price: $9.0 / 13.0
Type:Trading Company
inquiry1,4-DibromobutaneCAS: 110-52-1 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 intermedi
Cas:110-52-1
Min.Order:1 Gram
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 R&
Cas:110-52-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
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 qualifie
Cas:110-52-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryHebei Mojin Biological Technology Co., Ltd. is specialize in the production of chemical raw materials and reagents,located in Shijiazhuang, Hebei Province. In recent decades, under the efforts of all staff, in Shandong, Henan, Guangdong and many othe
Cas:110-52-1
Min.Order:1 Kilogram
FOB Price: $20.0 / 40.0
Type:Trading Company
inquiry1,4-Dibromobutane supplier CAS: 110-52-1 Specification Product Name 1,4-Dibromobutane CAS No. 110-52-1 Appearance Colorless transparent liquid Assa
Cas:110-52-1
Min.Order:1 Kilogram
Negotiable
Type:Other
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
Appearance:white or light yellow crystalline powder Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for research and industrial manufacture. Transportation:By
Product Name: 1,4-Dibromobutane Synonyms: 1,4-BUTYLENE DIBROMIDE;1,4-BUTYLENE BROMIDE;1,4-DIBROMOBUTANE;TETRAMETHYLENDIBROMID;TETRAMETHYLENE BROMIDE;TETRAMETHYLENE DIBROMIDE;1,4-Dibrombutan;1,4-dibromo-butan CAS: 110-52-1 MF: C4H8Br2 MW: 2
Cas:110-52-1
Min.Order:100 Gram
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:110-52-1
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryCompany 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
Conditions | Yield |
---|---|
With 1,2-dibromo-1,1,2,2-tetrachloroethane; triphenylphosphine In dichloromethane at 20℃; for 0.15h; Appel Halogenation; | 95% |
With carbon tetrabromide; triphenylphosphine In chloroform at 20℃; for 240h; | 93% |
With 2,2,2-tribromo-1,3,2-benzodioxaphosphole In chloroform | 86% |
Conditions | Yield |
---|---|
With water; boron tribromide In dichloromethane at 23℃; for 23h; regioselective reaction; | 87% |
With hydrogen bromide at 170℃; im Rohr; |
Conditions | Yield |
---|---|
With hydrogen bromide; phosphorus tribromide at 80℃; for 0.666667h; | A 85% B 4% |
With hydrogen bromide; phosphorus tribromide at 80℃; for 0.666667h; | A 27% B 53% |
Conditions | Yield |
---|---|
With sulfuric acid; sodium bromide In water for 3h; Heating; | 84.8% |
With hydrogen bromide at 130℃; | |
With sulfuric acid; hydrogen bromide |
4-methoxy-phenol
A
1,4-dibromo-butane
B
1-(4-methoxyphenoxy)-4-bromobutane
Conditions | Yield |
---|---|
A n/a B 82% |
1,4-bis-isopentyloxy-butane
A
1,4-dibromo-butane
B
1-bromo-4-isopentyloxy-butane
Conditions | Yield |
---|---|
With hydrogen bromide |
Conditions | Yield |
---|---|
With hydrogen bromide |
Conditions | Yield |
---|---|
With hydrogen bromide |
Conditions | Yield |
---|---|
With hydrogen bromide | |
With hydrogen bromide at 130 - 140℃; im Rohr; |
uvariadiamide
1,4-dibromo-butane
Conditions | Yield |
---|---|
With phosphorus pentabromide | |
With bromine; phosphorus trichloride | |
With phosphorus pentabromide im Vakuum; |
tetrahydrofuran
methanesulfonyl bromide
A
1,4-dibromo-butane
B
4,4'-dibromo-di-n-butyl ether
C
busulfan
D
1-bromo-4-methanesulfonyloxy-butane
Conditions | Yield |
---|---|
zinc(II) chloride at 75℃; for 5h; |
1-bromo-butane
A
1,4-dibromo-butane
B
1,1-dibromobutane
C
1,3-dibromobutane
D
1,2-dibromobutane
Conditions | Yield |
---|---|
With N-Bromosuccinimide In dichloromethane at 15℃; Product distribution; Irradiation; CH2CCl2; influence of additive - BrCCl3; |
trifluoro-acetic acid, 1,4-butanediyl ester
1,4-dibromo-butane
Conditions | Yield |
---|---|
With lithium bromide In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide for 4h; Heating; Yield given; |
2-(ω-bromobutylthio)-4,6-dimethylpyrimidine
A
thiophene
B
1,4-dibromo-butane
C
2-bromo-4,6-dimethylpyrimidine
D
1,4-bis(4',6'-dimethylpyrimidinyl-2'-thio)butane
Conditions | Yield |
---|---|
at 165 - 205℃; under 15 Torr; Further byproducts given; | A 2.5 g B 4.8 g C 8.5 g D 9.5 g |
at 165 - 205℃; under 15 Torr; | A 2.5 g B 4.8 g C 8.5 g D 9.5 g |
n-benzoylpyrrolidine
phosphorus pentabromide
A
1,4-dibromo-butane
B
benzonitrile
Conditions | Yield |
---|---|
Beim Erwaermen und nachfolgendem Destillieren des Reaktionsprodukts im Vakuum.; |
1,4-dibromo-butane
Conditions | Yield |
---|---|
With tetrachloromethane; bromine |
1,4-dibromo-butane
Conditions | Yield |
---|---|
With hydrogen bromide |
1,4-dibromo-butane
Conditions | Yield |
---|---|
at 220 - 230℃; im Rohr; |
1,4-dibromo-butane
bis(phenylsulfonyl)methane
1,1-bis(benzenesulphonyl)cyclopentane
Conditions | Yield |
---|---|
tetrabutylammomium bromide In sodium hydroxide at 25 - 30℃; for 3h; | 100% |
With sodium hydride In N,N-dimethyl-formamide at 70 - 80℃; for 1h; | 88% |
1,4-dibromo-butane
tert‐butyl 3‐aminopiperidine‐1‐carboxylate
1-(tert-butoxycarbonyl)-3-(1-pyrrolidinyl)piperidine
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 55℃; for 72h; | 100% |
1,4-dibromo-butane
p-chlorobenzyl cyanide
1-(4-chlorophenyl)cyclopentane-1-carbonitrile
Conditions | Yield |
---|---|
With sodium hydride In diethyl ether; dimethyl sulfoxide; mineral oil at 0 - 20℃; for 3.5h; Solvent; Temperature; | 100% |
Stage #1: p-chlorobenzyl cyanide With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Inert atmosphere; Stage #2: 1,4-dibromo-butane In N,N-dimethyl-formamide at 0 - 20℃; Inert atmosphere; | 82% |
Stage #1: p-chlorobenzyl cyanide With sodium hydroxide In N,N-dimethyl-formamide for 0.5h; Stage #2: 1,4-dibromo-butane In N,N-dimethyl-formamide at 50 - 55℃; for 4h; | 76% |
Stage #1: p-chlorobenzyl cyanide With sodium hydroxide In N,N-dimethyl-formamide for 0.5h; Stage #2: 1,4-dibromo-butane In N,N-dimethyl-formamide at 50 - 55℃; for 4h; | 76% |
With sodium hydride In diethyl ether; dimethyl sulfoxide | 61% |
1,4-dibromo-butane
methyl 3-oxonon-8-ene-1-carboxylate
methyl 1-hept-6-enoylcyclopentanecarboxylate
Conditions | Yield |
---|---|
With potassium carbonate In dimethyl sulfoxide Ambient temperature; | 100% |
Conditions | Yield |
---|---|
With hydroxylamine hydrochloride; triethylamine for 1.5h; Heating; | 100% |
With hydroxylamine hydrochloride; triethylamine for 1h; Heating; | |
With hydroxylamine hydrochloride; triethylamine for 1h; Inert atmosphere; Reflux; |
1,4-dibromo-butane
1-amino-cyclopentanecarboxylic acid ethyl ester hydrochloride
Conditions | Yield |
---|---|
Stage #1: Wang-benzaldehyde resin, imine with glycine ethyl ester; 1,4-dibromo-butane In 1-methyl-pyrrolidin-2-one for 1h; Stage #2: With tert-butylimino-tri(pyrrolidino)phosphorane In 1-methyl-pyrrolidin-2-one at 20℃; for 14h; Stage #3: With hydrogenchloride In tetrahydrofuran for 5h; | 100% |
Conditions | Yield |
---|---|
at 118℃; for 6h; | 100% |
1,4-dibromo-butane
(4-bromo-2-fluorophenyl)acetonitrile
2-(4-bromo-2-chloro-phenyl)-2-methyl-propionitrile(4-bromo-2-fluorophenyl)acetonitrile
Conditions | Yield |
---|---|
With sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride In water at 50℃; for 3h; | 100% |
1,4-dibromo-butane
1-(4-iodo-phenoxymethyl)-cyclopropylamine
1-[1-(4-brom-phenoxymethyl)-cyclopropyl]-pyrrolidine
Conditions | Yield |
---|---|
With potassium carbonate In DMF (N,N-dimethyl-formamide) at 80℃; for 24h; | 100% |
With potassium carbonate In DMF (N,N-dimethyl-formamide) at 80℃; for 24h; |
1,4-dibromo-butane
tetrahydropyridazine dihydrochloride
Conditions | Yield |
---|---|
Stage #1: t-butoxycarbonylhydrazine With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 0.5h; Stage #2: 1,4-dibromo-butane In N,N-dimethyl-formamide Stage #3: With hydrogenchloride In 1,4-dioxane; diethyl ether at 20℃; for 1h; | 100% |
1,4-dibromo-butane
(+)-(aR)-7,7'-dihydroxy-8,8'-biquinolyl
C22H18N2O2
Conditions | Yield |
---|---|
Stage #1: (-)-(aS)-7,7'-dihydroxy-8,8'-biquinolyl With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 0.416667h; Williamson synthesis; Stage #2: 1,4-dibromo-butane In N,N-dimethyl-formamide at 20℃; for 42h; Williamson synthesis; | 100% |
Conditions | Yield |
---|---|
With sodium dodecyl-sulfate; sodium hydrogencarbonate In water at 80℃; for 1h; Inert atmosphere; | 100% |
With potassium carbonate; potassium iodide In N,N-dimethyl-formamide at 80℃; for 24h; Inert atmosphere; |
1,4-dibromo-butane
pyridine-2-acetonitrile
1-(pyridin-2-yl)cyclopentanecarbonitrile
Conditions | Yield |
---|---|
With sodium hydride In diethyl ether; dimethyl sulfoxide; mineral oil at 15 - 20℃; for 25h; Inert atmosphere; | 100% |
Stage #1: pyridine-2-acetonitrile With lithium diisopropyl amide In tetrahydrofuran at -78℃; for 0.666667h; Stage #2: 1,4-dibromo-butane In tetrahydrofuran at -78 - 20℃; for 10h; | 96% |
With sodium hydride In diethyl ether; dimethyl sulfoxide at 0 - 20℃; for 4.5h; | 82% |
1,4-dibromo-butane
1-(3,5-difluorophenyl)cyclopentanol
Conditions | Yield |
---|---|
Stage #1: 1,4-dibromo-butane With magnesium In tetrahydrofuran at 0 - 20℃; for 1h; Stage #2: methyl 3,5-difluorobenzoate In tetrahydrofuran at 0 - 20℃; for 1h; Stage #3: With ammonium chloride In tetrahydrofuran | 100% |
Stage #1: 1,4-dibromo-butane With magnesium In tetrahydrofuran at 0 - 20℃; for 1h; Stage #2: methyl 3,5-difluorobenzoate In tetrahydrofuran at 0 - 20℃; for 1h; | 100% |
Stage #1: 1,4-dibromo-butane With magnesium In tetrahydrofuran at 0 - 20℃; Inert atmosphere; Stage #2: methyl 3,5-difluorobenzoate In tetrahydrofuran at 0 - 20℃; for 1h; Inert atmosphere; | 100% |
1,4-dibromo-butane
dimethyl amine
N,N,N',N'-tetramethyl-1,4-butanediamine
Conditions | Yield |
---|---|
In tetrahydrofuran at 0 - 20℃; for 24h; | 100% |
In chloroform at 20℃; for 24h; | 100% |
1,4-dibromo-butane
Tocopherol
(R)-6-(4-bromobutoxy)-2,5,7,8-tetramethyl-2-((4R,8R)-4,8,12-trimethyltridecyl)chroman
Conditions | Yield |
---|---|
With tetrabutylammomium bromide; potassium hydroxide In tetrahydrofuran; water at 0 - 20℃; Inert atmosphere; Darkness; | 100% |
Stage #1: Tocopherol With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 1h; Inert atmosphere; Stage #2: 1,4-dibromo-butane In N,N-dimethyl-formamide at 20℃; Inert atmosphere; | 50% |
Stage #1: Tocopherol With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 1h; Stage #2: 1,4-dibromo-butane In N,N-dimethyl-formamide at 20℃; | 47% |
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile at 20℃; for 5.5h; | 100% |
1,4-dibromo-butane
N-(tert-butoxycarbonyl)-N'-(2-nitrobenzenesulfonyl)-1,3-propanediamine
Conditions | Yield |
---|---|
With tetra-(n-butyl)ammonium iodide; caesium carbonate In acetonitrile at 0 - 60℃; for 2h; Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone Reflux; | 100% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone Reflux; | 100% |
Conditions | Yield |
---|---|
With potassium carbonate In acetone Reflux; | 100% |
Conditions | Yield |
---|---|
Stage #1: 3,3'-dinitro-[1,1'-biphenyl]-4,4’-diol With potassium carbonate In tetrahydrofuran Inert atmosphere; Reflux; Stage #2: 1,4-dibromo-butane In tetrahydrofuran for 24h; Inert atmosphere; Reflux; | 99.6% |
1,4-dibromo-butane
N,N'-bis(4-methoxyphenyl)iminoformamide
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile at 100℃; | 99.4% |
1,4-dibromo-butane
methyl 4-{[4-(methoxycarbonyl)phenyl]-amino}methyleneaminobenzoate
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile at 100℃; | 99.4% |
Conditions | Yield |
---|---|
Stage #1: gentitein With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: 1,4-dibromo-butane In N,N-dimethyl-formamide at 20℃; for 20h; | 99.3% |
Stage #1: gentitein With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: 1,4-dibromo-butane In N,N-dimethyl-formamide at 20℃; for 12.5h; |
Conditions | Yield |
---|---|
Stage #1: 7-chloro-1,3-dihydroxy-9H-xanthen-9-one With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: 1,4-dibromo-butane In N,N-dimethyl-formamide at 20℃; for 20h; | 99.2% |
Stage #1: 7-chloro-1,3-dihydroxy-9H-xanthen-9-one With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: 1,4-dibromo-butane In N,N-dimethyl-formamide at 20℃; for 12.5h; |
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile at 100℃; | 99.1% |
Conditions | Yield |
---|---|
Stage #1: 9H-fluorene With n-butyllithium In tetrahydrofuran at -78℃; for 0.75h; Stage #2: 1,4-dibromo-butane In tetrahydrofuran at -78 - 20℃; for 4h; | 99% |
With potassium tert-butylate In dimethyl sulfoxide for 2h; cooled (water bath); |
1,4-dibromo-butane
N,N-dimethylhexadecylamine
butane-1,4-diyl bis(N,N-dimethyl-N-hexadecylammonium) dibromide
Conditions | Yield |
---|---|
In ethanol at 80℃; for 48h; | 99% |
In acetonitrile for 0.5h; Heating; | 94% |
In ethanol; ethyl acetate for 48h; Reflux; Inert atmosphere; | 59% |
1,4-dibromo-butane
(1R,2S)-norephedrine
(1R,2S)-1-phenyl-2-(1-pyrrolidinyl)-1-propanol
Conditions | Yield |
---|---|
With potassium carbonate In acetonitrile for 24h; Heating; | 99% |
With sodium hydrogencarbonate In toluene at 110 - 118℃; for 20h; | 97% |
With sodium hydrogencarbonate In toluene for 32h; Heating; | 97% |
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