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:4940-11-8
Min.Order:1 Kilogram
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inquiryItems Standard Result Appearance White power,needle or granular crystals Complies Smell
Cas:4940-11-8
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Cas:4940-11-8
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inquiryEthyl Maltol Cas# 4940-11-8 HALAL.Kosher,Iso,Haccp Ethyl Maltol:White Crystalline Powder, Packing: 25kg/drum 12MT/20'FCL USP30/BP/FCC IV/EU Ethyl maltol is an organic compound that is a common flavourant in some confectioneries.
Ethyl maltol CAS 4940-11-8 Company profile Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food/Feed additives, Fine chemicals in distributing
Cas:4940-11-8
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inquiry1, Full experience of large numbers containers loading in main Chinese seaports 2, Packing with pallet as buyer's special request 3, Best service after shipment with e-mail 4, Cargoes together with container sales service available
Cas:4940-11-8
Min.Order:25 Kilogram
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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
Product description: Product name Ethyl maltol CAS number 4940-11-8 Assay ≥99% Appearance White crystalline powder Capacity 500mt/year Application Daily Flavor, Food Flavor
Cas:4940-11-8
Min.Order:10 Gram
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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:4940-11-8
Min.Order:1 Gram
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inquiryShanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
Cas:4940-11-8
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inquiryZorui combines R&D, production and sales into its operations, While continuously providing high-quality raw materials, we also provide and optimize technical solutions for customers to achieve mutual benefit. We adhere to the "quality, integ
Cas:4940-11-8
Min.Order:1 Kilogram
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inquiryColorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on
Our 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
Name:ethylmaltol CAS:4940-11-8 Grade:For chemical industry, scientific research and export Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data storage Security without vulnerability Pr
Cas:4940-11-8
Min.Order:25 Kilogram
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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 manufactu
Cas:4940-11-8
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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
Cas:4940-11-8
Min.Order:1 Kilogram
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inquiryhebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developmen
Cas:4940-11-8
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inquiryChemical Name:Ethyl maltol CAS No.: 4940-11-8 Molecular Fomula: C7H8O3 Molecular weight:140.14 Appearance: White powder Assay:99.0 % min Appearance: white powder Storage:Store in cool and dry place, away from sun light. Package: 25kg per
We are leading fine chemicals supplier in China and Our main business covers the fields below: 1.Noble Metal Catalysts (Pt.Pd...) 2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...) 3.OLED intermediat
Cas:4940-11-8
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inquiryOur Adwantage: 1.We have stock so we can delivery quickly at the very day when receive the payment. 2.Best price, first class service, high successful delivery rate. A discount would be given when you make a large order. 3.High qu
Cas:4940-11-8
Min.Order:10 Gram
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Type:Other
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:4940-11-8
Min.Order:1 Kilogram
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inquiryWe are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery
Cas:4940-11-8
Min.Order:10 Gram
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Type:Trading Company
inquiryProduct Name: Ethyl maltol CAS: 4940-11-8 MF: C7H8O3 MW: 140.14 EINECS: 225-582-5 Mol File: 4940-11-8.mol Ethyl maltol Structure Ethyl maltol Chemical Properties Melting point 85-95 °C (lit.) Boiling point 196.62°C
Ethyl maltol CAS:4940-11-8 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
Cas:4940-11-8
Min.Order:1 Gram
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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:4940-11-8
Min.Order:1 Kilogram
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inquiryProduct Detail Minimum Order Qty. 10 Gram
Cas:4940-11-8
Min.Order:20 Metric Ton
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inquiryEthyl maltol CAS: 4940-11-8 Specification Item Specification Appearance White Crystalline Powder Assay ≥99% Density 1.1624 (rough estimate) Melting point 85-95 °C (lit.) Wel
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 etc. 3) OEM/ODM Available;
Cas:4940-11-8
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inquiryPRODUCT DETAILS
Cas:4940-11-8
Min.Order:500 Kilogram
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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 have s
Cas:4940-11-8
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inquiryethylfurfuryl alcohol
2-ethyl-3-hydroxy-4-pyranone
Conditions | Yield |
---|---|
With chlorine In methanol; water 1.) -5 deg C; 2.) 90-95 deg C, 3.5 h; | 67% |
With chlorine In methanol; water at 90 - 95℃; for 3.5h; Rearrangement; | 67% |
Stage #1: ethylfurfuryl alcohol With oxygen In methanol at 93℃; Molecular sieve; Stage #2: With oxygen In methanol at 20℃; for 2h; Stage #3: With hydrogenchloride In water at 100℃; for 2h; pH=2.5 - 3; Solvent; Temperature; | 66.8% |
With tert-butylhypochlorite In acetic acid | 65% |
2-ethyl-3-hydroxy-4-pyranone
Conditions | Yield |
---|---|
With hydrogenchloride; zinc In ethanol at 55℃; for 3h; Temperature; |
2-ethyl-3-hydroxy-4-pyranone
Conditions | Yield |
---|---|
With Lawessons reagent In 1,4-dioxane for 1h; Heating; |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: hydrogen / water / 8 h / 90 °C / 15001.5 Torr 2: chlorine / water; methanol / -5 - 60 °C 3: sodium hydroxide / 3 h / 55 °C 4: zinc; hydrogenchloride / ethanol / 3 h / 55 °C View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: chlorine / water; methanol / -5 - 60 °C 2: sodium hydroxide / 3 h / 55 °C 3: zinc; hydrogenchloride / ethanol / 3 h / 55 °C View Scheme |
2-ethyl-3-hydroxy-4-pyranone
benzyl bromide
3-(benzyloxy)-2-ethyl-4H-pyran-4-one
Conditions | Yield |
---|---|
In acetone for 6h; Reflux; | 98% |
Stage #1: 2-ethyl-3-hydroxy-4-pyranone With sodium hydroxide In methanol Heating; Stage #2: benzyl bromide In methanol for 6h; Heating; Further stages.; | 85% |
With sodium hydroxide In ethanol Heating; | 80% |
Conditions | Yield |
---|---|
In methanol for 1h; Reflux; | 98% |
2-ethyl-3-hydroxy-4-pyranone
salicylic acid
2-ethyl-3-hydroxy-4-pyrone/salicylic acid 1:1 cocrystals
Conditions | Yield |
---|---|
In methanol at 64℃; for 1h; | 98% |
2-ethyl-3-hydroxy-4-pyranone
methyl iodide
2-ethyl-3-methoxy-4Hpyran-4-one
Conditions | Yield |
---|---|
With potassium carbonate In acetone for 4h; Inert atmosphere; Reflux; | 97% |
With potassium carbonate In acetone at 25℃; for 4h; | 93% |
With potassium carbonate In acetone for 8h; Reflux; |
2-ethyl-3-hydroxy-4-pyranone
sodium methylate
Rh(C5(CH3)5)Cl(C5H2O3C2H5)
Conditions | Yield |
---|---|
In methanol byproducts: NaCl; N2-atmosphere; stoich. amts., refluxing for 3 h; solvent removal, extn. into CH2Cl2, filtration (Celite), evapn., recrystn. (CH2Cl2/light petroleum); | 96% |
Conditions | Yield |
---|---|
In tetrahydrofuran ethylmaltol stirred with anhyd. THF at room temp., TiCl4 added dropwise to soln., stirred at room. temp for 30 min; filtered, washed with Et2O, recrystd. from CH2Cl2-petroleum ether (1:1); | 95% |
2-ethyl-3-hydroxy-4-pyranone
sodium methylate
(C6(CH3)3H3)RuCl(OOC5H2C2H5O)
Conditions | Yield |
---|---|
In methanol; water byproducts: NaCl; Sodium methoxide and ethylmaltol are added to a suspn. of the Ru-compd. in CH3OH/H2O and the mixt. is refluxed for 2 h.; The solvent is removed. The residue is dissolved in CH2Cl2. After filtn. the solvent is evaporated, recrystn. from CH2Cl2/diethylether, elem. anal.; | 80% |
Conditions | Yield |
---|---|
Stage #1: 2-ethyl-3-hydroxy-4-pyranone With lithium hydroxide monohydrate In water at 20℃; for 0.5h; Stage #2: zinc(II) sulfate heptahydrate In water at 20℃; for 5h; | 77% |
2-ethyl-3-hydroxy-4-pyranone
Conditions | Yield |
---|---|
In water VOSO4*3H2O and ethylmaltol (molar ratio 1:2) suspended in water at 45°C; pptd. over 15-20 min; cooled to room temp.; filtered; ppt. air dried; elem. anal.; | 72% |
Conditions | Yield |
---|---|
Stage #1: salicylaldehyde; anthranilic acid hydrazide In methanol for 0.5h; Stage #2: oxovanadium(IV) sulfate; 2-ethyl-3-hydroxy-4-pyranone In methanol for 0.5h; | 72% |
Conditions | Yield |
---|---|
With hydrogenchloride In ethanol; water at 160℃; for 12h; pH=5; Autoclave; | 70% |
2-ethyl-3-hydroxy-4-pyranone
La(ethylmaltol(1-))3
Conditions | Yield |
---|---|
With triethylamine In ethanol Ln(NO3)*6H2O was added to soln. ligand in EtOH and heated until ligand completely dissolved, Et3N was added and stirred for 18-24 h; ppt. was filtered, washed with cold water and cold MeOH and dried in vacuo; elem. anal.; | 68% |
Conditions | Yield |
---|---|
Stage #1: bis(acetylacetonate)oxovanadium; 2-ethyl-3-hydroxy-4-pyranone; 2-chloro-N′-(3-ethoxy-2-hydroxybenzylidene)benzohydrazide In methanol at 20℃; for 0.5h; Stage #2: With air In methanol | 68% |
2-ethyl-3-hydroxy-4-pyranone
tin(II) n-butoxide
Sn(ethylmaltol)2
Conditions | Yield |
---|---|
In toluene a soln. of hydroxyketone in toluene was added a stirred soln. of Sn-compound in toluene under N2, the soln. was stirred for 2 h then left at room temp.; elem. anal.; | 66% |
2-ethyl-3-hydroxy-4-pyranone
2-ethyl-3-hydroxy-5-bromo-4H-pyran-4-one
Conditions | Yield |
---|---|
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane at 95℃; for 18h; Inert atmosphere; | 66% |
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane at 95℃; Inert atmosphere; Schlenk technique; | 32% |
With N-Bromosuccinimide; 2,2'-azobis(isobutyronitrile) In tetrachloromethane at 95℃; for 18h; Inert atmosphere; Schlenk technique; |
2-ethyl-3-hydroxy-4-pyranone
2-hydroxy-3-bromobenzaldehyde
3-hydroxybenzoic hydrazide
Conditions | Yield |
---|---|
Stage #1: 2-hydroxy-3-bromobenzaldehyde; 3-hydroxybenzoic hydrazide In methanol for 0.5h; Stage #2: oxovanadium(IV) sulfate; 2-ethyl-3-hydroxy-4-pyranone In methanol for 0.5h; | 65% |
2-ethyl-3-hydroxy-4-pyranone
Conditions | Yield |
---|---|
With triethylamine In ethanol Ln(NO3)*6H2O was added to soln. ligand in EtOH and heated until ligand completely dissolved, Et3N was added and stirred for 18-24 h; ppt. was filtered, washed with cold water and cold MeOH and dried in vacuo; elem. anal.; | 64% |
Conditions | Yield |
---|---|
Stage #1: 2-ethyl-3-hydroxy-4-pyranone; benzyl chloride With sodium hydroxide In methanol; ethanol; water Stage #2: ethanolamine With sodium hydroxide In methanol; ethanol; water | 63% |
Stage #1: 2-ethyl-3-hydroxy-4-pyranone; benzyl chloride With sodium hydroxide In methanol; water Stage #2: ethanolamine With sodium hydroxide In ethanol; water | 63% |
Conditions | Yield |
---|---|
In methanol at 20℃; for 0.5h; | 62% |
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