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 quantiti
Zorui 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:72-18-4
Min.Order:1 Kilogram
Negotiable
Type:Other
inquiry1.High quality with good price 2:USP standard 3.be food additive,nutrition enhancer Appearance:white crystalline powder Storage:storage in ambient temperature Package:5-25KG/drum or bag Application:food additives Transportation:by sea or air
Welcome 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:72-18-4
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryItems Standard Result Appearance White crystal or crystalline powder White crystalline powder Identification
Cas:72-18-4
Min.Order:1 Gram
FOB Price: $100.0 / 500.0
Type:Manufacturers
inquiryProduct Name: L-Valine Synonyms: (S)-(+)-VALINE;(S)-ALPHA-AMINOISOVALERIC ACID;VALINE, L-;VALINE;2-AMINO-3-METHYLBUTANOIC ACID;2-AMINOISOVALERIC ACID… Founded in 2014, as a professional international pharmaceutical corporation, headquarter
Product description: Product name L-Valine CAS number 72-18-4 Assay ≥98% Appearance White crystal powder Capacity 200mt/year Application It is an essential amino acid for the
Unique advantages for L-Valine Cas72-18-4 Guaranteed the purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White crystals or crystalline power Storage:Store at RT Package:25kg/drum Application:A
Cas:72-18-4
Min.Order:100 Kilogram
FOB Price: $10.0 / 13.0
Type:Trading Company
inquirySpecifications L-Valine Cas No.72-18-4 Formula C5H11NO2 Loss on drying 0.3%max Packing 25kg/drums L-Valine L-Valine is an essential amino acid for increased cognitive function and smooth nervous system functioning. L-Valine is a
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
Sales: 1.24hours to reply your E-mail 2.Market information trend share with customers Suggestion for purchase decision Reputation: 1.Implementing contract terms strictly 2.Timely solve any discrepancy or goods claims Take our responsibility for loss
Cas:72-18-4
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
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:72-18-4
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryCAS No.: 72-18-4 Other Names: L-2-amino-3-methylbutyric-acid MF: C5H11NO2 EINECS No.: 200-773-6 Place of Origin: Anhui China (Mainland) Type:
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 day 2. The products are provided with COA, HPLC, NMR, quality assurance,
1. GMP AVALIABLE ; 2. IN STOCK 3. FAST REPLY QUALIFED ; EFFICIENCY; RESPONSIBLE Package:25kg/drum Application:active pharmaceutical ingredient Transportation:air/sea both ok
Colorcom 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
Chemwill Asia co.,Ltd is one of the leading manufacturer in CHINA. Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Active pharmaceutical ingredients(APIs), Veterinary, Indole derivatives,
Hebei yanxi chemical co., LTD is a professional research, development and production . enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low carbon environmental protection
Cas:72-18-4
Min.Order:1 Kilogram
FOB Price: $11.0 / 16.0
Type:Trading Company
inquiryName:L-valine Name:L-valine CAS no: 72-18-4 Grade: food industry Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data storage Security without vulnerability Product Technolo
Cas:72-18-4
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
Type:Other
inquiryL-Valine Basic information Amino acids The main effect of feed additives Content Analysis Toxicity Maximum level Chemical propertyApplications Synthetic method Product Name: L-Valine
With 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 manufacturing
Cas:72-18-4
Min.Order:1 Kilogram
FOB Price: $10.0 / 30.0
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:72-18-4
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:72-18-4
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryFormula:C5H11NO2 Molecular Weight:117.15 Deleted CAS:7004-03-7|16872-32-5 Synonyms:Valine,L- (8CI);(+)-2-Amino-3-methylbutyric acid;(2S)-2-Amino-3-methylbutanoic acid;(S)-2-Amino-3-methylbutanoic acid;(S)-Valine;(S)-a-Amino-b-methylbutyric ac
Amino Acid USP AJI cas 72-18-4 99% L-Valine Powder Pharmaceutical Raw material Pharmaceutical grade MOQ: 1kg Form: Powder Colour: White Test: HPLC Function: amino acid Grade:
Cas:72-18-4
Min.Order:100 Gram
Negotiable
Type:Trading Company
inquiryAdvantages: Hubei XinRunde Chemical Co., Ltd is a renowned pharmaceutical manufacturer. We can offer high quality products at competitive price in quick delivery with 100% custom pass guaranteed. Never stop striving to offer our best service is
Appearance:White powder Storage:2-8°C Package:25kg/drum Application:Amino acids drugs, nutritional supplements. It can be used as the main component of aminophenol transfusion and synthesize aminophenol. L-Valine is one of the three branched-chain
Cas:72-18-4
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Lab/Research institutions
inquiry1.Prompt Goods; 2.Flexible payment terms; 3.Documents & Certificate support. Name: V-Valine Structure: Formula: C5H11NO2 Molecular Weight : 117.15 Synonyms: (S)-alpha-Aminoisovalericacid,(L)-2-Amino-3-methylbutanoicacid;Valine(V)Solution,
1.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
We 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:72-18-4
Min.Order:10 Gram
FOB Price: $1.32
Type:Trading Company
inquiryN-carbamoyl-valine
L-valine
Conditions | Yield |
---|---|
With NH4Cl-NH4OH buffer pH 8.5; nickel dichloride at 60℃; for 24h; N-carbamyl-L-amino acid aminohydrolase; | 100% |
With Tris-HCl buffer; N-carbamoyl-L-amino acid hydrolase; iron(II) sulfate at 30℃; for 2h; | |
With sodium phosphate buffer; N-carmamyl-L-amino acid aminohydrolase of Pseudomonas sp. strain NS671; water; manganese(II) at 30℃; for 0.5h; Product distribution; | 18.9 mmol |
Proc-Val-OH
L-valine
Conditions | Yield |
---|---|
With resin bound tetrathiomolybdate In methanol at 28℃; for 1.5h; ultrasonic bath; | 100% |
A
L-valine
B
(S)-2-hydroxy-3-methoxy-3,3-diphenylpropionic acid
Conditions | Yield |
---|---|
In ethyl acetate at 80℃; for 3h; Solvent; | A 97% B 100% |
Conditions | Yield |
---|---|
With ammonium formate; tris hydrochloride; nicotinamide adenine dinucleotide; formate dehydrogenase; phenylalanine dehydrogenase In water at 30℃; for 24h; | 97% |
(2S)-2-(N-tert-Butoxycarbonyl)amino-3-methylbut-3-enoic acid
L-valine
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In ethyl acetate at 20℃; for 3h; Catalytic hydrogenation; | 94% |
t-Boc-L-valine
L-valine
Conditions | Yield |
---|---|
With tetradecyl(trihexyl)phosphonium bistriflamide; trifluoroacetic acid at 130℃; for 0.166667h; Ionic liquid; | 93% |
at 140℃; for 2h; | 70% |
at 130℃; for 1h; | |
Multi-step reaction with 4 steps 1.1: triethylamine; chloroformic acid ethyl ester / dichloromethane / 1 h / 20 °C / Inert atmosphere 1.2: 2 h / 20 °C / Inert atmosphere 2.1: hydrogenchloride / water; methanol / 4 h / 0 - 20 °C / Inert atmosphere 3.1: N,N-dimethyl-formamide / 5 h / Inert atmosphere; Reflux 4.1: hydrogenchloride; acetic acid / water; toluene / 44 h / 110 °C / Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
With D-amino acid oxidase; E. coli branched-chain amino acid aminotransferase In water at 37℃; for 72h; Tris buffer, pH 8.5, 1mM EDTA, monosodium glutamate, bovine serum albumin, catalase, pyridoxal 5'-phosphate; | 90% |
mit Hilfe eines Enzym-Praeparats aus Schweine-Nieren; | |
bei der Vergaerung mit Hefe unter Zusatz von Zucker; |
L-valine
Conditions | Yield |
---|---|
With ruthenium nanoparticles dispersed in a polyvinylpyrrolidone matrix; amberlyst A-21 In methanol; dichloromethane | 89% |
Conditions | Yield |
---|---|
With dimethyl sulfoxide at 120℃; for 0.25h; Microwave irradiation; | A 88% B n/a |
L-valine
Conditions | Yield |
---|---|
With sodium tetrahydroborate In methanol; aq. phosphate buffer at 20℃; for 1.33333h; Cooling with ice; Sealed tube; | 88% |
(2R)-N-<(2S)-2-<amino>-3-methylbutan-1-oyl>bornane-10,2-sultam
L-valine
Conditions | Yield |
---|---|
With hydrogenchloride; lithium hydroxide 1.) THF/water, r.t., 24 h, 2.) THF/water 2 : 1, r.t., 24 h; | 87% |
Conditions | Yield |
---|---|
With hydrogenchloride; water | A 86% B n/a |
With hydrogenchloride | A 86% B n/a |
With hydrogenchloride; water for 24h; Heating; |
((S)-1-Cyano-2-methyl-propyl)-carbamic acid methyl ester
L-valine
Conditions | Yield |
---|---|
With hydrogenchloride In water for 7h; Heating; | 85% |
(2S,5S)-N-<(S)-N-bis(methylthio)methylenevalyl>-2,5-bis(methoxymethoxymethyl)pyrrolidine
L-valine
Conditions | Yield |
---|---|
With hydrogenchloride for 4h; Heating; | 81% |
A
L-valine
B
D-aspartic acid hydrochloride
C
L-aspartic acid hydrochloride
Conditions | Yield |
---|---|
With hydrogenchloride; water at 100℃; for 24h; | A 81% B n/a C n/a |
(3S,5S)-3-Isopropyl-5-phenyl-morpholin-2-one
L-valine
Conditions | Yield |
---|---|
With hydrogen; trifluoroacetic acid; palladium dihydroxide In methanol; water under 3750.3 Torr; for 24h; | 78% |
L-valine benzyl ester p-toluenesulfonate salt
L-valine
Conditions | Yield |
---|---|
With hydrogenchloride Heating; | 70% |
Conditions | Yield |
---|---|
With potassium hydroxide; [bis(acetoxy)iodo]benzene at 0 - 5℃; for 1.5h; | A 65% B n/a |
L-valine
Conditions | Yield |
---|---|
With hydrogenchloride; acetic acid In water; toluene at 110℃; for 44h; Inert atmosphere; | 65% |
(1R,2R,3R,5R)-1-((S)-1-Cyano-2-methyl-propylamino)-5-isopropenyl-2-methyl-cyclohexane-1,3-dicarbonitrile
L-valine
Conditions | Yield |
---|---|
With hydrogenchloride at 110℃; for 12h; | 62% |
L-Glycin
L-Valin-N-carbonsaeureanhydrid
A
L-valine
B
valylglycine
C
Val-Val
D
N-carbamoylglycine
Conditions | Yield |
---|---|
With water; potassium hydroxide; potassium borate buffer at 3℃; Product distribution; effect of use of various amino acid and NCA with various concentrations; effect of use various temp.; extent of hydrolysis; | A n/a B 57.4% C n/a D n/a E n/a |
Conditions | Yield |
---|---|
With zinc(II) perchlorate; (R)-15-amino-methyl-14-hydroxy-5,5-dimethyl-2,8-dithia<9>(2,5)pyridinophane In methanol for 24h; Ambient temperature; | 57% |
With ammonium sulfate; NADP+-specific glutamate dehydrogenase from Pseudomonas putida, I406F mutant; NADPH In aq. phosphate buffer at 35℃; pH=7.5; Reagent/catalyst; Green chemistry; Enzymatic reaction; enantioselective reaction; |
Conditions | Yield |
---|---|
nickel In water for 1h; Product distribution; Ambient temperature; further amounts of catalyst; | A 45% B n/a |
N-formylvaline
L-valine
Conditions | Yield |
---|---|
With methanol; brucine ueber mehrere Stufen; |
Conditions | Yield |
---|---|
mit Hilfe eines Enzym-Praeparats aus Pseudomonas; |
N-benzoyl-D,L-valine
A
L-valine
B
(2R)-2-(benzoylamino)-3-methylbutyric acid
Conditions | Yield |
---|---|
With soil bacteria |
Nα-[2-(4-biphenylyl)-2-propyloxycarbonyl]-L-valine
L-valine
Conditions | Yield |
---|---|
With acetic acid at 22 - 25℃; Rate constant; other reaction partners; |
Conditions | Yield |
---|---|
Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts; |
Conditions | Yield |
---|---|
With perchloric acid; N,N-Dichlorobenzenesulfonamide In methanol; water at 29.9℃; Equilibrium constant; |
Conditions | Yield |
---|---|
With thionyl chloride at 0 - 20℃; | 100% |
With thionyl chloride at 20℃; Cooling with ice; Inert atmosphere; | 100% |
Stage #1: L-valine With thionyl chloride at 0℃; for 4.16667h; Reflux; Stage #2: methanol | 100% |
Conditions | Yield |
---|---|
at 135℃; | 100% |
at 140℃; for 0.166667h; | 98% |
In melt at 140℃; for 0.25h; | 98% |
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In water Inert atmosphere; | 100% |
With sodium hydroxide In water at 0 - 20℃; | 100% |
With potassium carbonate In water at 0 - 2℃; pH=1.5 - Ca. 2; Reagent/catalyst; pH-value; Temperature; Solvent; | 99% |
Conditions | Yield |
---|---|
In tetrahydrofuran at 40℃; for 1.5h; | 100% |
In tetrahydrofuran at 40℃; for 5h; | 99.7% |
In tetrahydrofuran; toluene at 50 - 60℃; for 4h; | 96% |
Conditions | Yield |
---|---|
With thionyl chloride at -10℃; Heating / reflux; | 100% |
With thionyl chloride at -10℃; Heating / reflux; | 100% |
With hydrogenchloride for 12h; Reflux; | 81.5% |
Conditions | Yield |
---|---|
With triethylamine In 1,4-dioxane; water | 100% |
With sodium hydroxide In 1,4-dioxane; water at 0℃; | 100% |
With sodium hydroxide In tetrahydrofuran; water at 20℃; for 16h; | 100% |
L-valine
2-methyl-propan-1-ol
toluene-4-sulfonic acid
(S)-1-isobutoxy-3-methyl-1-oxobutan-2-aminium 4-methylbenzenesulfonate
Conditions | Yield |
---|---|
In water; toluene for 24h; Reflux; Dean-Stark; | 100% |
In benzene Heating; | 84% |
In benzene Heating; |
L-valine
phenyl chloroformate
(2S)-3-Methyl-2-(phenoxycarbonyl)aminobutyric acid
Conditions | Yield |
---|---|
With sodium hydroxide; potassium hydrogencarbonate for 1.5h; Ambient temperature; | 100% |
With aluminum oxide; lithium chloride; lithium hydroxide In water at -20 - -10℃; for 5h; pH=9.5 - 10.2; Schotten-Baumann Reaction; Inert atmosphere; | 92% |
Stage #1: L-valine; phenyl chloroformate With sodium hydroxide In water at 0℃; for 5h; Stage #2: With hydrogenchloride In water pH=2; | 75.9% |
Conditions | Yield |
---|---|
With potassium carbonate In tetrahydrofuran; water at 20℃; for 18h; | 100% |
With potassium carbonate In tetrahydrofuran; water at 20℃; for 18h; | 100% |
With potassium carbonate In tetrahydrofuran; water at 20℃; for 18h; | 100% |
L-valine
azidovaline
Conditions | Yield |
---|---|
With imidazole-1-sulfonyl azide hydrochloride; copper(ll) sulfate pentahydrate; potassium carbonate In methanol at 20℃; for 18h; | 100% |
With imidazole-1-sulfonyl azide hydrochloride; potassium carbonate; copper(II) sulfate In methanol at 20℃; | 100% |
With sodium azide; copper(ll) sulfate pentahydrate; trifluoromethylsulfonic anhydride; potassium carbonate In methanol; dichloromethane; water | 97% |
Conditions | Yield |
---|---|
With copper(l) iodide; caesium carbonate In dimethyl sulfoxide at 90℃; for 48h; | 100% |
With copper(l) iodide; 2,4-dichlorophenoxyacetic acid dimethylamine; potassium carbonate at 90℃; for 48h; | 86% |
With water; potassium carbonate; copper(l) iodide In N,N-dimethyl acetamide at 90℃; for 48h; | 81% |
Conditions | Yield |
---|---|
With sodium hydroxide; water at 100℃; for 24h; Alkylation; | 100% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran; water at 20℃; for 2h; | 100% |
Conditions | Yield |
---|---|
With caesium carbonate In dimethyl sulfoxide at 90℃; | 100% |
Conditions | Yield |
---|---|
Stage #1: L-valine With sodium hydroxide In water at 0℃; for 1h; Inert atmosphere; Stage #2: naphthalene-1-carbonic acid chloride In tetrahydrofuran; water at 20℃; Inert atmosphere; | 100% |
L-valine
C13H13FO
methyl (S)-2-((4-fluoro-2-(hex-1-ynyl)benzylidene)amino)-3-methylbutanoate
Conditions | Yield |
---|---|
In dichloromethane at 20℃; Molecular sieve; | 100% |
Conditions | Yield |
---|---|
With lithium hydride In methanol Reflux; | 100% |
Conditions | Yield |
---|---|
With sodium methylate In methanol Reflux; | 100% |
Conditions | Yield |
---|---|
With calcium hydride In methanol Reflux; | 100% |
Conditions | Yield |
---|---|
With lithium hydride In methanol Reflux; | 100% |
Conditions | Yield |
---|---|
With sodium methylate In methanol Reflux; | 100% |
Conditions | Yield |
---|---|
With calcium hydride In methanol Reflux; | 100% |
Conditions | Yield |
---|---|
In methanol at 0℃; for 12h; | 100% |
Conditions | Yield |
---|---|
In water; toluene for 24h; Reflux; Dean-Stark; | 100% |
Conditions | Yield |
---|---|
In water; toluene for 24h; Reflux; Dean-Stark; | 100% |
L-valine
1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyridin-1-ium-3-carboxylate
Conditions | Yield |
---|---|
In water pH=5.67; Cooling with ice; | 100% |
Conditions | Yield |
---|---|
In water pH=2.24 - 2.49; Inert atmosphere; Cooling with ice; | 100% |
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