DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe
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:481-42-5
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
WITH 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:481-42-5
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
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:481-42-5
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryPLUMBAGIN CAS:481-42-5 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 intermediates, st
Cas:481-42-5
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:481-42-5
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:481-42-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryChengdu Biopurify Phytochemicals Ltd. is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine,Traditional Chinese Medic
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
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:481-42-5
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:481-42-5
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquirySuperior quality, moderate price & quick delivery. Appearance:white crystal powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:10g/bag,or as your request Application:Used as Pharmaceutical Intermediates Tr
Cas:481-42-5
Min.Order:1 Gram
Negotiable
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
The quality is guaranteed. If you find the product is wrong compared with COA, we promise 100% refund or change product. COA and HPLC will be shipped out with goods. You can also inform your analysis method and we will follow your a
Why is SINOWAY:1) Specialized in pharmaceutical and healthcare industrial since 19872) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days.4) We have warehouse in USA with quickly shipment . Application:Herbal extr
Cas:481-42-5
Min.Order:0
Negotiable
Type:Trading Company
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:481-42-5
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
ADVANTAGE:1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day2. The products are provided with COA, HPLC, NMR, quality assurance, pac
best seller Application:API
bulk productiongoods in stockswe have the best competitive price in the marketmeantime,we are committed to service to our every customer Chemsigma International Co.,Ltd. is a chemical manufacturer, specialize in custom synthesis and organic chemical
High quality ,low price Storage:Room temperature Package:As per customer's Application:For Organic synthsis Transportation:To be shipped as non-hazardous chemicals
Ansciep 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:481-42-5
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
Cas:481-42-5
Min.Order:0
Negotiable
Type:Trading Company
inquiryAppearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China
good quality, competitive price, thoughtful after sale serviceAppearance:White to Off-White Solid Storage:Keep it in dry,shady and cool place Package:as your requirement Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by Sea
best seller Application:API
Plumbagin cas 481-42-5Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
2-bromo-5-hydroxy-[1,4]naphthoquinone
tetramethylstannane
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
tetrakis(triphenylphosphine) palladium(0); copper(I) bromide In 1,4-dioxane for 15h; Heating; | 100% |
tetrakis(triphenylphosphine) palladium(0); copper(I) bromide In 1,4-dioxane for 15h; Heating; Yield given; |
6-methyl-5,8-dioxo-5,8-dihydronaphthalen-1-yl acetate
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With hydrogenchloride In methanol at 50℃; for 1h; | 100% |
5-methoxymethoxy-2-methyl-1,4-naphthoquinone
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In neat (no solvent, solid phase) at 20℃; for 0.583333h; Green chemistry; | 97% |
With hydrogenchloride In methanol for 0.0833333h; Heating; | 95% |
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With cerium(IV) ammonium sulphate In water; acetonitrile for 0.25h; Cooling with ice; | 95% |
With ammonium cerous sulfate In water; acetonitrile at 0℃; for 0.25h; | 95% |
2-methyl-5-methoxy-1,4-naphthoquinone
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With aluminium trichloride | 90% |
With aluminium trichloride In dichloromethane 1.) 1 h, room temp., 2.) 15 min, water; | 90% |
With aluminium trichloride In dichloromethane at 20℃; for 2h; | 75% |
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With sodium hydride In tetrahydrofuran for 15h; Ambient temperature; | 82% |
2-Methyl-1,5-naphthalindiol-5-acetat
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With oxygen; methylene blue In methanol at 20℃; for 4h; Irradiation; | 69% |
Multi-step reaction with 2 steps 1: 74 percent / aq. ON(SO3K)2, KH2PO4 / methanol / 2 h 2: 100 percent / conc. HCl / methanol / 1 h / 50 °C View Scheme |
Conditions | Yield |
---|---|
With [ruthenium(II)(η6-1-methyl-4-isopropyl-benzene)(chloride)(μ-chloride)]2; trifluoroacetic acid; trifluoroacetic anhydride; bis-[(trifluoroacetoxy)iodo]benzene at 80℃; for 12h; Sealed tube; chemoselective reaction; | 61% |
With ammonium peroxydisulfate; sulfuric acid |
5-acetyloxy-3-bromo-2-methyl-1,4-naphthoquinone
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
at 145℃; for 12h; | 60% |
1,8-Dihydroxy-3-methylnaphthalin
A
5-hydroxy-2-methyl-1,4-naphthoquinone
B
7-methyljuglone
Conditions | Yield |
---|---|
With salcomine; oxygen In N,N-dimethyl-formamide at 20℃; for 1h; Inert atmosphere; | A 51% B 30% |
2-bromo-5-hydroxy-[1,4]naphthoquinone
<2,6-dimethoxy-4-methylphenyl>trimethylstannane
A
5-hydroxy-2-methyl-1,4-naphthoquinone
B
2-(2,6-Dimethoxy-4-methylphenyl)-5-hydroxy-1,4-naphthoquinone
Conditions | Yield |
---|---|
tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane for 3h; Heating; | A 6% B 46% |
2-bromo-5-hydroxy-[1,4]naphthoquinone
lithium dimethylcuprate
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
In tetrahydrofuran at -78℃; | 42% |
1-methoxy-2-methyl-4,5-naphthylene diacetate
A
5-hydroxy-2-methyl-1,4-naphthoquinone
B
8,8'-dihydroxy-3,3'-dimethyl[2,2']binaphthalenyl-1,4,1',4'-tetraone
Conditions | Yield |
---|---|
Stage #1: 1-methoxy-2-methyl-4,5-naphthylene diacetate With potassium hydroxide In methanol for 0.5h; Heating; Stage #2: With lead dioxide In chloroform for 0.5h; Heating; | A 23% B 0.3% |
1,5-Dihydroxy-2-methylnaphthalin
A
5-hydroxy-2-methyl-1,4-naphthoquinone
B
5-hydroxy-6-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With potassium dihydrogenphosphate; potassium nitrososulfonate In methanol for 2h; | A n/a B 15% |
With potassium dihydrogenphosphate; potassium nitrososulfonate In methanol for 2h; | A n/a B 15% |
(3R,4R)-4,8-dihydroxy-3-methyl-3,4-dihydro-1(2H)-naphthalenone
A
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In 1,4-dioxane for 12h; Heating; | A n/a B 0.005% |
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In 1,4-dioxane for 12h; Heating; |
2-methyl-1,4,5-naphthalenetriol
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With dihydrogen peroxide |
(3R,4R)-4,8-dihydroxy-3-methyl-3,4-dihydro-1(2H)-naphthalenone
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In 1,4-dioxane for 18h; Heating; | 22 mg |
With pyridine; chromium(VI) oxide In chloroform for 24h; |
plumbazeylanone
A
5-hydroxy-2-methyl-1,4-naphthoquinone
B
methylene-3,3'-diplumbagin
Conditions | Yield |
---|---|
at 240℃; under 4.5 Torr; for 0.0833333h; |
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With chromium(VI) oxide; acetic acid for 1.5h; Heating; Yield given; |
5-hydroxynaphtho-1,4-quinone
acetic acid
A
5-hydroxy-2-methyl-1,4-naphthoquinone
B
isoplumbagin
C
2,3-dimethyl-5-hydroxy-1,4-naphthoquinone
Conditions | Yield |
---|---|
With ammonium peroxydisulfate; silver nitrate 1.) Acetonitril, 80 deg C, 2.) H2O, Rueckfluss, 2 h; Multistep reaction; |
1,4,5-Triacetoxy-8-chlor-2-methylnaphthalin
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
Yield given. Multistep reaction; |
2-methyl-5-amino-1,4-naphthoquinone
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With nitrosylsulfuric acid; sulfuric acid; water 1.) 4 h, 2.) 2 h, reflux; Yield given. Multistep reaction; | |
Multi-step reaction with 2 steps 1: 48 percent / NaNO2 / 3 h / Heating 2: 1.) ON(SO3K)2, 0.167 M K2HPO4, 2.) H2O / 1.) 4 h, 2.) 2 h, reflux View Scheme |
5-Acetamido-2-methyl-1,4-naphthochinon
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With dipotassium hydrogenphosphate; potassium nitrososulfonate; water 1.) 4 h, 2.) 2 h, reflux; Yield given. Multistep reaction; |
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In 1,4-dioxane for 8h; Heating; |
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With chromium(VI) oxide; sulfuric acid In sodium hydroxide for 0.0333333h; | 12 mg |
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With hydrogenchloride; iron(III) chloride 1.) toluene, 270 deg C, 30 min, 2.) MeOH, 3 h; Yield given. Multistep reaction; |
5-hydroxy-2-methyl-1,4-naphthoquinone
methyl iodide
2-methyl-5-methoxy-1,4-naphthoquinone
Conditions | Yield |
---|---|
With silver(l) oxide In dichloromethane at 20℃; for 48h; Inert atmosphere; | 99% |
With silver(l) oxide | 94% |
With silver(l) oxide In chloroform Ambient temperature; | 93% |
Conditions | Yield |
---|---|
Stage #1: 5-hydroxy-2-methyl-1,4-naphthoquinone With triethylamine In diethyl ether at 20℃; for 0.5h; Stage #2: n-hexadecanoyl chloride In diethyl ether at 20℃; for 1h; | 99% |
Conditions | Yield |
---|---|
Stage #1: 5-hydroxy-2-methyl-1,4-naphthoquinone With triethylamine In diethyl ether at 20℃; for 0.5h; Stage #2: n-dodecanoyl chloride In diethyl ether at 20℃; for 1h; | 98% |
Conditions | Yield |
---|---|
Stage #1: 5-hydroxy-2-methyl-1,4-naphthoquinone With triethylamine In diethyl ether at 20℃; for 0.5h; Stage #2: tetradecanoyl chloride In diethyl ether at 20℃; for 1h; | 98% |
Conditions | Yield |
---|---|
Stage #1: 5-hydroxy-2-methyl-1,4-naphthoquinone With triethylamine In diethyl ether at 20℃; for 0.5h; Stage #2: Stearoyl chloride In diethyl ether at 20℃; for 1h; | 96% |
Conditions | Yield |
---|---|
Stage #1: 5-hydroxy-2-methyl-1,4-naphthoquinone With triethylamine In diethyl ether at 20℃; for 0.5h; Stage #2: (Z)-9-octadecenoyl chloride In diethyl ether at 20℃; for 1h; | 96% |
5-hydroxy-2-methyl-1,4-naphthoquinone
acetic anhydride
6-methyl-5,8-dioxo-5,8-dihydronaphthalen-1-yl acetate
Conditions | Yield |
---|---|
With pyridine for 2h; Ambient temperature; | 94% |
With pyridine at 20℃; for 10h; | 93% |
With pyridine at 20℃; for 4h; | 90% |
With triethylamine In diethyl ether at 20℃; for 0.5h; |
5-hydroxy-2-methyl-1,4-naphthoquinone
chloromethyl methyl ether
5-methoxymethoxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
Stage #1: 5-hydroxy-2-methyl-1,4-naphthoquinone With sodium hydride In N,N-dimethyl-formamide; paraffin oil at 0℃; for 0.0833333h; Stage #2: chloromethyl methyl ether In 1,2-dimethoxyethane; paraffin oil at 0℃; for 1.5h; | 94% |
With potassium carbonate In acetone |
1-bromo-4-(2-vinylbuta-1,3-dienyl)benzene
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In dichloromethane at -35℃; Diels-Alder Cycloaddition; Inert atmosphere; | 92% |
With boron trifluoride diethyl etherate In dichloromethane at -30℃; Diels-Alder reaction; |
5-hydroxy-2-methyl-1,4-naphthoquinone
propionic acid
5-O-propionoyl-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With dmap; 2-methyl-6-nitrobenzoic anhydride; triethylamine In dichloromethane at 20℃; for 2h; | 89% |
5-hydroxy-2-methyl-1,4-naphthoquinone
N-sulfinyl-4-methylaniline
Conditions | Yield |
---|---|
In benzene for 72h; Ambient temperature; | 87% |
5-hydroxy-2-methyl-1,4-naphthoquinone
2,2,2-Trichloroethyl chloroformate
Conditions | Yield |
---|---|
Stage #1: 5-hydroxy-2-methyl-1,4-naphthoquinone With pyridine In dichloromethane at 0℃; Inert atmosphere; Stage #2: 2,2,2-Trichloroethyl chloroformate In dichloromethane | 87% |
Conditions | Yield |
---|---|
Stage #1: 5-hydroxy-2-methyl-1,4-naphthoquinone With potassium carbonate In acetone at 20℃; for 0.0833333h; Stage #2: ethyl iodide In acetone at 80℃; for 1h; | 87% |
Conditions | Yield |
---|---|
With dmap; 2-methyl-6-nitrobenzoic anhydride; triethylamine In dichloromethane at 20℃; | 86% |
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
With N-iodo-succinimide; dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; copper diacetate; silver(I) triflimide In dichloromethane at 45℃; for 2h; Inert atmosphere; Sealed tube; Microwave irradiation; | 85% |
5-hydroxy-2-methyl-1,4-naphthoquinone
4'-phenyl-2,2':6',2-terpyridine
Conditions | Yield |
---|---|
Stage #1: copper(II) nitrate trihydrate; 4'-phenyl-2,2':6',2-terpyridine In methanol; chloroform at 20℃; for 1h; Stage #2: 5-hydroxy-2-methyl-1,4-naphthoquinone With triethylamine In methanol; chloroform for 0.5h; Cooling with ice; | 84% |
1,10-Phenanthroline
5-hydroxy-2-methyl-1,4-naphthoquinone
copper(I) bromide
Conditions | Yield |
---|---|
With sodium methylate In methanol at 20℃; for 2.5h; Reflux; | 81% |
Conditions | Yield |
---|---|
With silver nitrate In acetonitrile at 20℃; for 1h; | 81% |
5-hydroxy-2-methyl-1,4-naphthoquinone
(5Z,8Z,11Z,14Z,17Z)-eicosa-5,8,11,14,17-pentaenoyl chloride
Conditions | Yield |
---|---|
With pyridine; dmap at 20℃; for 4h; Inert atmosphere; | 80% |
Conditions | Yield |
---|---|
With trifluoroacetic acid In methanol for 6h; Reflux; | 80% |
5-hydroxy-2-methyl-1,4-naphthoquinone
3-chloro-4-trifluoromethoxy-aniline
Conditions | Yield |
---|---|
With trifluoroacetic acid In methanol for 6h; Reflux; | 80% |
5-hydroxy-2-methyl-1,4-naphthoquinone
dimethyltin(IV) diisopropoxide
Conditions | Yield |
---|---|
In benzene byproducts: isopropanol; addn. of ligand to tin compd. soln. (ratio 2/1); refluxing; azeotropically fractionating, 3-5h; evapn.; crystn. (benzene or benzene/hexane 1/1); elem. anal.; | 79% |
5-hydroxy-2-methyl-1,4-naphthoquinone
Conditions | Yield |
---|---|
In benzene byproducts: isopropanol; addn. of ligand to tin compd. soln. (ratio 2/1); refluxing; azeotropically fractionating, 3-5h; evapn.; crystn. (benzene or benzene/hexane 1/1); elem. anal.; | 79% |
Conditions | Yield |
---|---|
With sodium methylate In methanol at 20℃; for 2.5h; Reflux; | 79% |
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