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 services. DayangChem can provide different quantities of custom synthesis ch
Cas:79-50-5
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryProduct Name:DL-Pantolactone CAS No.: 79-50-5 Chemical formula: C6H10O3 Molecular weight:130.14 Product Usage: Pharmaceutical intermediates Packaging and Shipping: 25kgs /drum, or customized. Storage: Notes: Keep stored in cool, dry condit
Cas:79-50-5
Min.Order:1 Kilogram
FOB Price: $10.0
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:79-50-5
Min.Order:1
Negotiable
Type:Other
inquiry1. 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:79-50-5
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
Our 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:79-50-5
Min.Order:1 Kilogram
FOB Price: $15.0 / 50.0
Type:Trading Company
inquiryCAS No.79-50-5 DL-Pantolactone Our 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 relati
Cas:79-50-5
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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:79-50-5
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:79-50-5
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryDL-Pantolactone CAS:79-50-5 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 intermediat
Cas:79-50-5
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:79-50-5
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquirybest price,best quality and fast delivery assurance available in sample product and customization with years of export experience along with excellent quality, advanced services and competitive prices the quality of products conform u
Cas:79-50-5
Min.Order:10 Gram
Negotiable
Type:Trading Company
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
Best 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
Hangzhou 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:79-50-5
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryFactory direct sales, accept customization. Kind Pharma has its own laboratory, we can do analytical testing for API (Active Pharmaceutical Ingredient), pharmaceutical intermediate, pesticide intermediate, additive and other chemical products, so it
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
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
Our Advantages Production: Advanced chemical equipment with years of experience.Staffs for producing various extract products. Quality Control:A complete set of Testing Professional and Analysis Equipment ensures the Quality Requirements and Speci
Cas:79-50-5
Min.Order:1 Kilogram
FOB Price: $150.0 / 180.0
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,
DL-Pantolactone Basic information Product Name: DL-Pantolactone Synonyms: 2(3H)-Furanone, dihydro-3-hydroxy-4,4-dimethyl-, (+-)-;DL-alpha-Hydroxy-beta,beta-dimethyl-alpha-butyrolactone;DL-ALPHA-HYDROXY-BETA,BETA-DIMETHYL-GAMME-BUTYROLACTONE;DL
1.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:79-50-5
Min.Order:1 Metric Ton
FOB Price: $7.0 / 8.0
Type:Trading Company
inquiryISO/factory/goodqualityAppearance:off white Storage:Dry,cool place Package:drum Application:active pharmaceutical ingredients Transportation:by air/sea/express Port:shenzhen/shanghai
high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
good quality and cheap price Package:25kg/200kg Application:as intermediates Transportation:by courier/sea/air
Acmec 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:79-50-5
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
Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp
Hunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns 40 reactors from 1000L to 8000L. With complete auxiliary equipment as
calcium-N-(2,4-dihydroxy-3,3-dimethylbutyryl)-β-alaninate
A
pantolactone
B
3-amino propanoic acid
Conditions | Yield |
---|---|
With hydrogenchloride In water at 80℃; for 1.75h; Rate constant; | A 100% B 100% |
Conditions | Yield |
---|---|
With hydrogenchloride In water at 80℃; for 1.25h; Rate constant; | A 100% B 100% |
ketopantolactone
pantolactone
Conditions | Yield |
---|---|
With hydrogen; Et4N | 99% |
With F6P(1-)*C20H36IrN6P2(1+); hydrogen In water at 80℃; under 15001.5 Torr; for 4h; Catalytic behavior; Reagent/catalyst; Time; Autoclave; Green chemistry; | 99.9% |
With iron(II) triflate; phenanthridine; triiron dodecarbonyl; hydrogen In 1,4-dioxane at 65℃; under 37503.8 Torr; for 24h; Autoclave; | 91% |
Conditions | Yield |
---|---|
With sulfuric acid for 3h; pH=9.5; Reflux; | 98.9% |
With sulfuric acid In water at 100℃; for 1h; | 86.9% |
Conditions | Yield |
---|---|
With sulfuric acid at 80 - 85℃; for 3h; Temperature; | 98.3% |
Conditions | Yield |
---|---|
Stage #1: 2,2-dimethyl-3-hydroxypropionaldehyde; hydrogen cyanide In water at 0 - 10℃; for 0.25h; Stage #2: With sulfuric acid for 1h; Reflux; | 93.1% |
Verseifung des Reaktionsprodukts mit Salzsaeure; |
(R,S)-2,4-Dihydroxy-3,3-dimethylbutyronitrile
pantolactone
Conditions | Yield |
---|---|
With sulfuric acid for 6h; Reagent/catalyst; Reflux; | 92.5% |
With ammonium hydroxide; sulfuric acid at 94 - 96℃; under 435.044 Torr; for 2.25h; pH=5.0; Pressure; Temperature; pH-value; Inert atmosphere; |
pantolactone p-nitrobenzoate
pantolactone
Conditions | Yield |
---|---|
With lithium hydroxide In methanol; water for 0.166667h; Ambient temperature; | 90% |
N-benzyl-2,4-dihydroxy-3,3-dimethylbutyramide
A
pantolactone
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In diethylene glycol dimethyl ether for 5h; Heating; | A 14 % Spectr. B 69% |
Conditions | Yield |
---|---|
Stage #1: glyoxylic acid ethyl ester; 2-methyl-propan-1-ol With N-(2-hydroxyethyl)pyrrolidine-2-carboxamide In toluene; tert-butyl alcohol at 20℃; for 24h; Stage #2: With [RhCl2(p-cymene)]2; sodium formate In water; toluene; tert-butyl alcohol Reagent/catalyst; Temperature; Inert atmosphere; | 62% |
N-heptyl-2,4-dihydroxy-3,3-dimethylbutyramide
A
pantolactone
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In diethylene glycol dimethyl ether for 15h; Heating; | A 41% B 15% |
(R,S)-2,4-Dihydroxy-3,3-dimethylbutyramide
A
DL-4-amino-2-hydroxy-3,3-dimethylbutanoic acid lactam
B
pantolactone
Conditions | Yield |
---|---|
With ammonia; toluene-4-sulfonic acid In methanol at 250℃; under 7220 - 11400 Torr; for 4h; Heating; | A 9 % Spectr. B 40% |
formaldehyd
sodium 3-methyl-2-oxobutyrate
A
ketopantolactone
B
pantolactone
Conditions | Yield |
---|---|
With hydrogenchloride; potassium carbonate 1.) H2O, 38-40 deg C, (well controlled addition of formaldehyde); Yield given. Multistep reaction. Yields of byproduct given; |
calcium (S)-pantothenate
A
pantolactone
B
3-amino propanoic acid
Conditions | Yield |
---|---|
With water; sodium 1,2-naphthoquinone-4-sulfonate In ethanol Kinetics; Rate constant; Mechanism; various temperatures, times, concentrations, pH, ionic strengths, and dielectric constants; |
isobutyraldehyde
oxalic acid diethyl ester
A
ketopantolactone
B
dihydro-4,4-dimethyl-5-(1-methylethyl)-2,3-furandione
C
pantolactone
Conditions | Yield |
---|---|
With formaldehyd; sodium methylate 1.) methanol, 10 deg C, 20 min, 2.) methanol, 40 deg C, 20 min; Yield given. Multistep reaction. Yields of byproduct given; |
(RS)-2-acetoxy-3,3-dimethyl-γ-butyrolactone
pantolactone
Conditions | Yield |
---|---|
With potassium hydroxide In methanol Heating; Yield given; |
Conditions | Yield |
---|---|
With potassium carbonate Erwaermen der mit wss. Salzsaeure angesaeuerten Reaktionsloesung; |
pantolactone
Conditions | Yield |
---|---|
With water |
Conditions | Yield |
---|---|
In tetrahydrofuran at 0℃; for 1h; Title compound not separated from byproducts; |
2,4-dihydroxy-N-phenyl-3,3-dimethylbutyramide
A
rac-3-hydroxy-4,4-dimethyl-1-phenyl-2-pyrrolidinone
B
pantolactone
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In diethylene glycol dimethyl ether for 15h; Heating; | A 40 % Spectr. B 53 % Spectr. |
Conditions | Yield |
---|---|
With Lactobacillus paracasei DSM 20207 In water at 42℃; for 24h; pH=6; Product distribution; Further Variations:; Reagents; |
N-benzyl-2,4-dihydroxy-3,3-dimethylbutyramide
pantolactone
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: 14 percent Spectr. / p-TsOH*H2O / bis-(2-methoxy-ethyl) ether / 5 h / Heating 2.1: n-BuLi / tetrahydrofuran; hexane / 3 h / 0 °C 2.2: 59 percent / tetrahydrofuran; hexane / 12 h / 20 °C 3.1: 53 percent Spectr. / p-TsOH*H2O / bis-(2-methoxy-ethyl) ether / 15 h / Heating View Scheme |
2,4-dihydroxy-N-phenyl-3,3-dimethylbutyramide
pantolactone
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 53 percent Spectr. / p-TsOH*H2O / bis-(2-methoxy-ethyl) ether / 15 h / Heating 2: 100 percent / methanol / 24 h / 20 °C 3: 14 percent Spectr. / p-TsOH*H2O / bis-(2-methoxy-ethyl) ether / 5 h / Heating View Scheme |
(3R)-4,4-dimethyl-2-oxotetrahydrofuran-3-yl methanesulfonate
pantolactone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 38 percent / 18-crown-6 / benzene / 48 h / Heating 2: 5percent KOH / methanol / Heating View Scheme |
Chloro-methanesulfonic acid (R)-4,4-dimethyl-2-oxo-tetrahydro-furan-3-yl ester
pantolactone
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 94 percent / 18-crown-6 / benzene / 3 h / Heating 2: 5percent KOH / methanol / Heating View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 98 percent / pyridine / 0.17 h / 0 - 20 °C 2: 94 percent / 18-crown-6 / benzene / 3 h / Heating 3: 5percent KOH / methanol / Heating View Scheme | |
Multi-step reaction with 3 steps 1: 88 percent / pyridine / 0.17 h / 0 - 20 °C 2: 38 percent / 18-crown-6 / benzene / 48 h / Heating 3: 5percent KOH / methanol / Heating View Scheme |
1-Heptylamine
pantolactone
N-heptyl-2,4-dihydroxy-3,3-dimethylbutyramide
Conditions | Yield |
---|---|
In methanol at 20℃; for 20h; | 100% |
at 100 - 110℃; | |
at 100 - 110℃; |
Conditions | Yield |
---|---|
In acetonitrile at 30℃; under 6750540 Torr; for 168h; | 100% |
methylamine
pantolactone
β,β-dimethyl-α,γ-dihydroxybutyric acid N-methylamide
Conditions | Yield |
---|---|
In methanol; water at 20℃; for 3h; | 100% |
In water Ring cleavage; |
Conditions | Yield |
---|---|
In methanol at 20℃; for 24h; | 100% |
In methanol for 3h; Ambient temperature; | 93% |
Conditions | Yield |
---|---|
With ammonia at -60 - 20℃; Ring cleavage; | 100% |
With ammonium hydroxide In methanol at 20℃; for 14h; | 84% |
Multi-step reaction with 3 steps 1: 100 percent / methanol / 24 h / 20 °C 2: 14 percent Spectr. / p-TsOH*H2O / bis-(2-methoxy-ethyl) ether / 5 h / Heating 3: 84 percent / aq. NH3 / methanol / 14 h / 20 °C View Scheme |
2-Methoxyethoxymethyl chloride
pantolactone
4,4-dimethyl-2-methoxyethoxymethoxy-γ-butyrolactone
Conditions | Yield |
---|---|
With 15-crown-5; sodium hydride In tetrahydrofuran at 22℃; for 15h; | 100% |
pantolactone
ketopantolactone
Conditions | Yield |
---|---|
With oxygen In 1,2-dichloro-benzene at 180℃; for 3h; | 99.5% |
With trichloroisocyanuric acid; tetrabutylammomium bromide; water; potassium carbonate; ruthenium trichloride In acetonitrile at 20 - 45℃; for 1 - 3h; Product distribution / selectivity; | 97.7% |
With ruthenium(III) chloride trihydrate; trichloroisocyanuric acid; tetrabutylammomium bromide; sodium acetate In water; acetonitrile at 25 - 45℃; Green chemistry; chemoselective reaction; | 97.7% |
pantolactone
Conditions | Yield |
---|---|
With water; potassium hydroxide at 60℃; for 4h; | 99.2% |
triethylmethoxystannane
pantolactone
DL-2-triethylstannoxy-3,3-dimethyl-γ-butyrolactone
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: MeOH; mixt. of the hydroxy deriv. and triethylmethoxystannane heated (formed MeOH removed continuously during react.); distn.; elem. anal.; | 99% |
benzyl bromide
pantolactone
3-(benzyloxy)-4,4-dimethyldihydrofuran-2(3H)-one
Conditions | Yield |
---|---|
With tetra-(n-butyl)ammonium iodide; silver(l) oxide In dichloromethane at 20℃; for 48h; Darkness; | 98% |
Conditions | Yield |
---|---|
With water; sodium hydroxide at 60℃; for 4h; | 96.3% |
With sodium hydroxide In ethanol for 2h; Yield given; |
chloromethyl methyl ether
pantolactone
3,3-dimethyl-2-methoxymethoxy-4-butanolide
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In 1,2-dichloro-ethane at 40℃; for 24h; | 96% |
Conditions | Yield |
---|---|
In 1,4-dioxane for 5h; Heating; | 96% |
1-hydroxygermatrane monohydrate
pantolactone
DL-2-germatranoxy-3,3-dimethyl-γ-butyrolactone
Conditions | Yield |
---|---|
In m-xylene=m-xylol byproducts: H2O; mixt. of the germatrane with the hydroxy compd. in m-xylene refluxed with azeotropic distn. of H2O; residue filtered off, washed with n-pentane, recrystn. from CH3CN; elem. anal.; | 96% |
(1R,2R,3S,4S)-3-Amino-1,7,7-trimethyl-bicyclo[2.2.1]heptan-2-ol
pantolactone
Conditions | Yield |
---|---|
In toluene at 110℃; for 1.5h; | 95.7% |
Conditions | Yield |
---|---|
In methanol for 3h; Ambient temperature; | 95% |
at 100℃; |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In methanol at 250℃; under 7220 - 11400 Torr; for 4h; Heating; | 93% |
82% |
methanesulfonyl chloride
pantolactone
4,4-dimethyl-2-oxotetrahydro-3-furyl methane sulfonate
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at -5℃; | 92% |
2,3-dihydro-2H-furan
pantolactone
3,3-dimethyl-2-(2-tetrahydrofuryloxy)-4-butanolide
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In dichloromethane at 0℃; | 91% |
cyclohexylamine
pantolactone
N-cyclohexyl-2,4-dihydroxy-3,3-dimethylbutyramide
Conditions | Yield |
---|---|
In methanol for 3h; Ambient temperature; | 90% |
Conditions | Yield |
---|---|
In methanol for 3h; Ambient temperature; | 89% |
at 100 - 110℃; | |
at 100 - 110℃; |
Conditions | Yield |
---|---|
With 4-pyrrolidin-1-ylpyridine; triethylamine In dichloromethane for 10h; Ambient temperature; | 89% |
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