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:7541-49-3
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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:7541-49-3
Min.Order:1
Negotiable
Type:Other
inquiry
Cas:7541-49-3
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Manufacturers
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:7541-49-3
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
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:7541-49-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry3,7,11,15-TETRAMETHYL-2-HEXADECEN-1-OL CAS:7541-49-3 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 qua
Cas:7541-49-3
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:7541-49-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s
Cas:7541-49-3
Min.Order:1 Kilogram
FOB Price: $40.0 / 50.0
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:7541-49-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
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: Trading(Raw Mater
Cas:7541-49-3
Min.Order:0 Metric Ton
FOB Price: $18.0 / 20.0
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
J&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:7541-49-3
Min.Order:0
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:7541-49-3
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
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
Cas:7541-49-3
Min.Order:0
Negotiable
Type:Trading Company
inquiryGMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
Cas:7541-49-3
Min.Order:1 Milligram
Negotiable
Type:Trading Company
inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
Cas:7541-49-3
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
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:7541-49-3
Min.Order:1 Gram
Negotiable
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:7541-49-3
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
High 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:7541-49-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
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
Cas:7541-49-3
Min.Order:1 Kilogram
Negotiable
Type:Other
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:7541-49-3
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryWe 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
Cas:7541-49-3
Min.Order:0
Negotiable
Type:Trading Company
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
Cas:7541-49-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryR & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
Cas:7541-49-3
Min.Order:0
Negotiable
Type:Manufacturers
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:7541-49-3
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
inquiryhigh quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
Cas:7541-49-3
Min.Order:0
Negotiable
Type:Manufacturers
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:7541-49-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquirybest seller Application:API
Cas:7541-49-3
Min.Order:0
Negotiable
Type:Manufacturers
inquiryAnsciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
Cas:7541-49-3
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
Stage #1: isophytol With phosphorus tribromide In n-heptane at -10 - 0℃; for 1h; Stage #2: With sodium hydroxide In water at 50 - 60℃; for 2h; pH=6 - 7; | 89% |
Multi-step reaction with 3 steps 1: hydrogenchloride; tetramethlyammonium chloride / water / 10 - 20 °C / Large scale 2: tetramethlyammonium chloride / acetonitrile / 50 - 60 °C / Large scale 3: sodium hydroxide; water / 40 - 50 °C / Large scale View Scheme |
Conditions | Yield |
---|---|
Stage #1: 6,10,14-Trimethyl-2-pentadecanon; C7H13ClMgO2 In tert-butyl methyl ether at 0℃; for 6h; Inert atmosphere; Stage #2: With pyridinium p-toluenesulfonate In ethanol; water for 2h; Reflux; | 84% |
[3-methyl-3-(4,8,12-trimethyl-tridecyl)-oxiranyl]-methanol
A
neophytadiene
B
isophytol
C
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
With methyltrioxorhenium(VII); triphenylphosphine In toluene for 3h; Reflux; | A 7.4% B n/a C n/a |
Conditions | Yield |
---|---|
With acetic anhydride at 96 - 97℃; dann Verseifen mit methylalkoholischer Kalilauge; |
Conditions | Yield |
---|---|
at 96 - 97℃; nachfolgende Verseifung mit methylalkoholischer Kalilauge; |
3,7,11,15-tetramethyl-hexadec-2-enoic acid ethyl ester
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride In diethyl ether |
ethyl-5,9-dimethyldec-2-anoate
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: (i) NaH, THF, (ii) Al-Hg, aq. THF 2: (i) NaH, DMF, (ii) /BRN= 1722657/ 3: H2 / Pd-CaCO3 / ethanol / 76000 Torr / Ambient temperature 4: (i) NaH, THF, (ii) Al-Hg, aq. THF 5: (i) NaH, THF, (ii) /BRN= 1724987/ 6: LiAlH4 / diethyl ether View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: (i) NaH, THF, (ii) /BRN= 635835/ 2: H2 / Pd-CaCO3 / ethanol / 76000 Torr / Ambient temperature 3: (i) NaH, THF, (ii) Al-Hg, aq. THF 4: (i) NaH, DMF, (ii) /BRN= 1722657/ 5: H2 / Pd-CaCO3 / ethanol / 76000 Torr / Ambient temperature 6: (i) NaH, THF, (ii) Al-Hg, aq. THF 7: (i) NaH, THF, (ii) /BRN= 1724987/ 8: LiAlH4 / diethyl ether View Scheme |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: H2 / Pd-CaCO3 / ethanol / 76000 Torr / Ambient temperature 2: (i) NaH, THF, (ii) Al-Hg, aq. THF 3: (i) NaH, DMF, (ii) /BRN= 1722657/ 4: H2 / Pd-CaCO3 / ethanol / 76000 Torr / Ambient temperature 5: (i) NaH, THF, (ii) Al-Hg, aq. THF 6: (i) NaH, THF, (ii) /BRN= 1724987/ 7: LiAlH4 / diethyl ether View Scheme |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: H2 / Pd-CaCO3 / ethanol / 76000 Torr / Ambient temperature 2: (i) NaH, THF, (ii) Al-Hg, aq. THF 3: (i) NaH, THF, (ii) /BRN= 1724987/ 4: LiAlH4 / diethyl ether View Scheme |
(E)-3,7,11,15-tetramethylhexadec-2-en-1-ol
A
neophytadiene
B
isophytol
C
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: vanadium trisacetylacetonate; tert.-butylhydroperoxide / hexane; decane / Inert atmosphere; Reflux 2: triphenylphosphine; methyltrioxorhenium(VII) / toluene / 3 h / Reflux View Scheme |
Geranylgeraniol
A
neophytadiene
B
isophytol
C
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: vanadium trisacetylacetonate; tert.-butylhydroperoxide / toluene / Reflux; Inert atmosphere 2: 5%-palladium/activated carbon; hydrogen / ethanol / 4 h / 40 °C 3: triphenylphosphine; methyltrioxorhenium(VII) / toluene / 3 h / Reflux View Scheme |
geranylgeraniol-2,3-epoxide
A
neophytadiene
B
isophytol
C
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 5%-palladium/activated carbon; hydrogen / ethanol / 4 h / 40 °C 2: triphenylphosphine; methyltrioxorhenium(VII) / toluene / 3 h / Reflux View Scheme |
6,10,14-trimethyl-5,9,13-pentadecatriene-2-on
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: hydrogen; palladium 10% on activated carbon / ethanol / 24 h / 20 °C / 1520.1 Torr 2.1: tert-butyl methyl ether / 6 h / 0 °C / Inert atmosphere 2.2: 2 h / Reflux View Scheme | |
Multi-step reaction with 3 steps 1.1: hydrogen; palladium 10% on activated carbon / ethanol / 24 h / 20 °C / 1520.1 Torr 2.1: tert-butyl methyl ether / 2 h / 0 - 5 °C 3.1: phosphorus tribromide / n-heptane / 1 h / -10 - 0 °C 3.2: 2 h / 50 - 60 °C / pH 6 - 7 View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: magnesium / tert-butyl methyl ether / 5 h / 50 - 60 °C / Inert atmosphere 2.1: tert-butyl methyl ether / 6 h / 0 °C / Inert atmosphere 2.2: 2 h / Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: tert-butyl methyl ether / 6 h / 0 °C / Inert atmosphere 2.1: hydrogen; palladium 10% on activated carbon / ethanol / 24 h / 20 °C / 1520.1 Torr 3.1: tert-butyl methyl ether / 6 h / 0 °C / Inert atmosphere 3.2: 2 h / Reflux View Scheme | |
Multi-step reaction with 4 steps 1.1: tert-butyl methyl ether / 6 h / 0 °C / Inert atmosphere 2.1: hydrogen; palladium 10% on activated carbon / ethanol / 24 h / 20 °C / 1520.1 Torr 3.1: tert-butyl methyl ether / 2 h / 0 - 5 °C 4.1: phosphorus tribromide / n-heptane / 1 h / -10 - 0 °C 4.2: 2 h / 50 - 60 °C / pH 6 - 7 View Scheme |
3,7,11,15-tetramethylhexadec-2-en-1-yl acetate
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
With methanol; potassium carbonate Reflux; Large scale; | |
With methanol; sodium carbonate for 12h; Reagent/catalyst; Reflux; | 108 g |
1-chloro-3,7,11,15-tetramethylhexadec-2-ene
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: tetramethlyammonium chloride / acetonitrile / 50 - 60 °C / Large scale 2: sodium hydroxide; water / 40 - 50 °C / Large scale View Scheme |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
With water; sodium hydroxide at 40 - 50℃; Large scale; |
1-bromo-3,7,11,15-tetramethylhexadec-2-ene
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: tetrabutylammomium bromide / N,N-dimethyl-formamide / 50 - 60 °C / Large scale 2: potassium carbonate; methanol / Reflux; Large scale View Scheme |
Conditions | Yield |
---|---|
With hydrogen; sodium hydrogencarbonate; platinum(IV) oxide In tetrahydrofuran under 760.051 Torr; for 20h; | 100% |
With hydrogen; platinum(IV) oxide In tetrahydrofuran under 760.051 Torr; for 20h; | 100% |
With hydrogen In ethanol at 20℃; for 104h; Reagent/catalyst; Pressure; Time; | 100% |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
[3-methyl-3-(4,8,12-trimethyl-tridecyl)-oxiranyl]-methanol
Conditions | Yield |
---|---|
With 3-chloro-benzenecarboperoxoic acid In dichloromethane | 99% |
With PW12O40(3-)*polymer; dihydrogen peroxide at 20℃; for 7h; | 96% |
With 3-chloro-benzenecarboperoxoic acid In dichloromethane at 0℃; |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
1-bromo-3,7,11,15-tetramethylhexadec-2-ene
Conditions | Yield |
---|---|
With carbon tetrabromide; triphenylphosphine In dichloromethane | 91% |
With phosphorus tribromide In diethyl ether at 0 - 20℃; | 86% |
With phosphorus tribromide In hexane at 0℃; for 0.166667h; Inert atmosphere; |
Conditions | Yield |
---|---|
at 60℃; for 2.5h; | 90% |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
With 1,3-dichlorotetrabutyldistannoxane In toluene for 3h; Reflux; Inert atmosphere; | 89% |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
acetic anhydride
3,7,11,15-tetramethylhexadec-2-en-1-yl acetate
Conditions | Yield |
---|---|
With pyridine In hexane at 21 - 22℃; for 16 - 18h; | 83% |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
With pyruvate kinase; phosphoenolpyruvic acid; undecaprenol kinase; ATP; 2-amino-2-hydroxymethyl-1,3-propanediol; magnesium chloride at 37℃; for 24h; pH=8; Kinetics; Enzymatic reaction; | 82% |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
benzoic acid anhydride
(E/Z)-(all-rac)-phytyl benzoate
Conditions | Yield |
---|---|
With dmap In hexane at 23 - 24℃; for 20h; | 76% |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
With iodine; triphenylphosphine In diethyl ether at 20℃; for 4h; | 70% |
2,3-dimethyl-5-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-hydroquinone
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Acetic acid (2S,3S,4R,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-2-[6-hydroxy-2,7,8-trimethyl-2-(4,8,12-trimethyl-tridecyl)-chroman-5-yl]-tetrahydro-pyran-3-yl ester
Conditions | Yield |
---|---|
With zinc(II) chloride | 66% |
3,5-dimethyl-2-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-hydroquinone
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
With zinc(II) chloride | 63% |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
1,8-diazabicyclo[5.4.0]undec-7-ene
2-cyanoethoxy-2-thiono-1,3,2-oxathiaphospholane
Conditions | Yield |
---|---|
Stage #1: 3,7,11,15-tetramethyl-2-hexadecen-1-ol; 1,8-diazabicyclo[5.4.0]undec-7-ene; 2-cyanoethoxy-2-thiono-1,3,2-oxathiaphospholane In acetonitrile at 20℃; for 0.5h; Stage #2: With ammonium hydroxide In 1,4-dioxane; water at 20℃; for 48h; | 62.2% |
Conditions | Yield |
---|---|
With ozone In carbon dioxide at 20 - 140℃; under 45754.6 - 186769 Torr; for 0.458333h; Autoclave; | 58% |
With chloroethane beim Ozonisieren und Behandeln des entstandenen Ozonids mit Zinkstaub und Eisessig; | |
With chromium(VI) oxide; acetic acid unter Zusatz von Kaliumdisulfat; |
Conditions | Yield |
---|---|
sulfuric acid at 120℃; | 48% |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
A
3,7,11,15-tetramethylhexadec-2-enal
B
[3-methyl-3-(4,8,12-trimethyl-tridecyl)-oxiranyl]-methanol
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide; chromium(VI) oxide In dichloromethane for 5h; Ambient temperature; | A 10% B 20% |
phthalic anhydride
3,7,11,15-tetramethyl-2-hexadecen-1-ol
neophytadiene
phthalic anhydride
3,7,11,15-tetramethyl-2-hexadecen-1-ol
phthalic acid monophytyl ester
Conditions | Yield |
---|---|
With benzene |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
2-hexadecene, 3,7,11,15-tetramethyl-,[R-[R*,R*-(E)]]-
Conditions | Yield |
---|---|
With diethyl ether; ammonia; sodium |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
neophytadiene
Conditions | Yield |
---|---|
With phthalic anhydride; benzene |
Conditions | Yield |
---|---|
With diethyl ether; hydrogen; platinum | |
durch elektrolytische Reduktion; |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
(2E)-3,7,11,15-tetramethyl-2-hexadecene
Conditions | Yield |
---|---|
With hydrogen iodide Reduktion des entstandenen Jodids mit Zinkstaub; |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
3,7,11,15-tetramethyl-2-hexadecen-1-oic acid
Conditions | Yield |
---|---|
With potassium hydrogensulfate; chromic acid; acetic acid |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
Conditions | Yield |
---|---|
With diethyl ether; sodium |
Conditions | Yield |
---|---|
With chloroethane durch Ozonisiation; Zersetzung des entstandenen Ozonids mit Zinkstaub in Aether+Eisessig+wenig Wasser; | |
With acetic acid ester durch Ozonisiation; Hydrierung des Ozonids in Gegenwart von Palladium-Calciumcarbonat; |
3,7,11,15-tetramethyl-2-hexadecen-1-ol
3,5-Dimethyl-4-hydroxy-thiophenol
acetic anhydride
Conditions | Yield |
---|---|
With pyridine; formic acid |
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