we are committed to excellence.From manufacturing to packaging and delivery, we provide quality, reliability and the highest degree of customer service.Our scope of service is organized/structured around the unique needs of each client.Our mission is
Cas:134-03-2
Min.Order:500 Kilogram
FOB Price: $5.5 / 6.0
Type:Trading Company
inquiryWelcome 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:134-03-2
Min.Order:1 Kilogram
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inquiryProduct Description
Cas:134-03-2
Min.Order:1 Kilogram
FOB Price: $5.0 / 30.0
Type:Lab/Research institutions
inquiryHebei yanxi chemical co., LTD is a professional research, development and production 2-phenylacetamide enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low carbon environ
Cas:134-03-2
Min.Order:100 Gram
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inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; ...... Appearance:White to slightly yellow crystalline powder Storage:Store
Cas:134-03-2
Min.Order:100 Kilogram
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inquiryItems Standard Result Assay (Ursolic acid) 98%min 98.22% -----------------------------------------------------------------------------------------------------------
Cas:134-03-2
Min.Order:1 Gram
FOB Price: $100.0 / 500.0
Type:Trading Company
inquiryL-Ascorbic Acid Sodium Salt CAS:134-03-2 Alias: Sodium ascorbate; Vitamine C sodium salt; ; sodium 5-[(1S)-1,2-dihydroxyethyl]-3-hydroxy-4-oxo-4,5-dihydrofuran-2-olate (non-preferred name); sodium 5-(1,2-dihydrox
Cas:134-03-2
Min.Order:1 Kilogram
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inquirySodium Ascorbate Chemical names: Sodium(2R)-2-[(1S)-1,2-dihydroxyethyl]-4-hydroxy-5-oxo-2,5-dihydrofuran-3- olate. Synonyms: natrii ascorbas CAS No.: 134-03-2 Einecs-No.: 205-126-1 E No.: E 301 Empirical formula: C6H7NaO6 Molecular
We are: Focus on the research, production and sale of Plant and Animal extract, Medical intermediate, complete coverage six industries. Product grade: Medicine, Health care product, Cosmetics, Food,Feed, Biopesticide. Hot selling market: Europe,
Cas:134-03-2
Min.Order:1 Kilogram
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inquiryhe company has advanced technology, as well as a large number of excellent R & D team, to provide customers from the grams to one hundred kilograms and tons of high-quality products, competitive prices and quality se T rvice Appearance:White or
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
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Cas:134-03-2
Min.Order:1 Gram
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inquiryADVANTAGE: 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,
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:134-03-2
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
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. Near 20 years DayangChem has provided dif
Cas:134-03-2
Min.Order:100 Gram
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Cas:134-03-2
Min.Order:5 Kiloliter
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inquiryWhy is SINOWAY: 1) Specialized in pharmaceutical and healthcare industrial for 34 years. 2) 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 . 5) We c
Cas:134-03-2
Min.Order:25 Kilogram
Negotiable
Type:Trading Company
inquiryName:L-Ascorbic Acid Sodium Salt CAS NO: 134-03-2 Grade:Medical scientific research and export Molecular formula:C6H7NaO6 Molecular weight:198.1059 Product Quality 12 years of chemical raw materials Mature operation of the industry System
Cas:134-03-2
Min.Order:25 Kilogram
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Type:Other
inquiryOur 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 relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O
Cas:134-03-2
Min.Order:1 Kilogram
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Cas:134-03-2
Min.Order:1 Kilogram
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inquiryChemical Name: Sodium ascorbate CAS No.: 134-03-2 Molecular Formula: C6H7NaO6 Molecular Weight: 198.11 Appearance: White or yellowish crystalline powder Storage:Store in cool and dry place, away from sun light. Package:25kg Application:It can be u
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Cas:134-03-2
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inquiryAppearance:white to off-white solid Storage:Room temperature Package:25kg/drum Application:Food additives, used as antioxidants Transportation:Express/Sea/Air Port:Any port in china
Cas:134-03-2
Min.Order:25 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:White Crystalline Powder Storage:Store in sealed conta
Cas:134-03-2
Min.Order:10 Gram
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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:134-03-2
Min.Order:10 Gram
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Type:Trading Company
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Cas:134-03-2
Min.Order:100 Kilogram
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inquiryProduct Name: Sodium ascorbate CAS: 134-03-2 MF: C6H7NaO6 MW: 198.11 EINECS: 205-126-1 Mol File: 134-03-2.mol Sodium ascorbate Structure Sodium ascorbate Chemical Properties Melting point 220 °C (dec.)(lit.) alpha 104
Cas:134-03-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryPacking: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Appearance:white powder/ Refer to COA Storage:Refer to COA
Cas:134-03-2
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryConditions | Yield |
---|---|
In methanol (N2); dropwise addn. of the Sn-compound in MeOH to a suspension of ascorbate in MeOH with stirring at 0°C; after allowing to warm up to room temp. the mixt. is heated under reflux for 3 h; volatiles are removed in vac. and the solid is successively washed with CH2Cl2 and THF and water, recrystn. from MeOH; elem. anal.; | 85% |
Conditions | Yield |
---|---|
In methanol (N2;) dropwise addn. of Sn compound in MeOH to a suspension of ascorbate in MeOH with stirring at 0°C; after allowing to warm up to room temp. the mixt. is heated under reflux for 3.5 h; volatiles are removed in vac. and the solid is successively washed with CH2Cl2 and THF, recrystn. from MeOH; elem. anal.; | 73% |
Conditions | Yield |
---|---|
In methanol byproducts: NaCl; (N2); soln. of Sn compd. (1 equiv.) in methanol was added dropwise with stirring to suspn. of ascorbate (2 equiv.) in methanol at 0°C; soln. was warmed to room temp.; refluxed for 3 h; filtered; concd. (vac.); washed (CH2Cl2); recrystd. (methanol); elem. anal.; | 50% |
Conditions | Yield |
---|---|
In methanol byproducts: NaCl; (N2); soln. of Sn compd. (1 equiv.) in methanol was added dropwise with stirring to suspn. of ascorbate (1 equiv.) in methanol; soln. was stirred at room temp. for 10 min; refluxed for 6 h; filtered; volatiles removed (vac.); washed (CH2Cl2); dried (vac.); recrystd. (methanol); elem. anal.; | 47% |
Conditions | Yield |
---|---|
In water (N2); dropwise addn. of a soln. of ascorbate in water to a soln. of the Ti-compd. in water with stirring at 10°C, stirring of the mixt. for 2 h; allowing to warm slowly up to room temp.;; ppt. is collected by filtn., washed with cooled water and redissolved in THF, pptn. by addn. of hexane; elem. anal.; | 45% |
Conditions | Yield |
---|---|
In methanol byproducts: NaCl; (N2); soln. of Sn compd. (1 equiv.) in methanol was added dropwise with stirring to suspn. of ascorbate (1 equiv.) in methanol; soln. was stirred at room temp. for 10 min; refluxed for 6 h; filtered; volatiles removed (vac.); washed (CH2Cl2); dried (vac.); recrystd. (methanol); elem. anal.; | 23% |
Conditions | Yield |
---|---|
In methanol byproducts: NaCl; (N2); soln. of Sn compd. (1 equiv.) in methanol was added dropwise with stirring to suspn. of ascorbate (1 equiv.) in methanol; soln. was stirred at room temp. for 10 min; refluxed for 6 h; filtered; volatiles removed (vac.); washed (CH2Cl2); dried (vac.); recrystd. (methanol); elem. anal.; | 20% |
Conditions | Yield |
---|---|
In methanol byproducts: NaCl; (N2); soln. of Sn compd. (1 equiv.) in methanol was added dropwise with stirring to suspn. of ascorbate (2 equiv.) in methanol at 0°C; soln. was warmed to room temp.; refluxed for 3 h; filtered; concd. (vac.); washed (CH2Cl2); recrystd. (methanol); elem. anal.; | 20% |
Conditions | Yield |
---|---|
In methanol byproducts: NaCl; (N2); soln. of Sn compd. (1 equiv.) in methanol was added dropwise with stirring to suspn. of ascorbate (1 equiv.) in methanol; soln. was stirred at room temp. for 10 min; refluxed for 6 h; filtered; volatiles removed (vac.); washed (CH2Cl2); dried (vac.); recrystd. (methanol); elem. anal.; | 20% |
sodium ascorbate
2-O-α-D-glucopyranosyl L-ascorbate
Conditions | Yield |
---|---|
rat intestinal (or rice seed) α-glucosidase, maltose, thiourea, 0.1 M acetate buffer, 3 h, 50 deg C, in the dark; | 14% |
sodium ascorbate
alpha cyclodextrin
2-O-α-D-glucopyranosyl L-ascorbate
Conditions | Yield |
---|---|
Stage #1: sodium ascorbate; alpha cyclodextrin With cyclodextrin glucanotransferase from Thermoanaerobacter sp. In aq. acetate buffer at 40℃; for 24h; pH=4.0; Enzymatic reaction; Stage #2: With amyloglucosidase from Aspergillus niger In aq. acetate buffer at 60℃; for 2h; Enzymatic reaction; regioselective reaction; | 0.27% |
Conditions | Yield |
---|---|
Stage #1: sodium ascorbate; β‐cyclodextrin With cyclodextrin glucanotransferase from Thermoanaerobacter sp. In aq. acetate buffer at 40℃; for 24h; pH=4.0; Enzymatic reaction; Stage #2: With amyloglucosidase from Aspergillus niger In aq. acetate buffer at 60℃; for 2h; Enzymatic reaction; regioselective reaction; | 0.24% |
sodium ascorbate
cyclomaltooctaose
2-O-α-D-glucopyranosyl L-ascorbate
Conditions | Yield |
---|---|
Stage #1: sodium ascorbate; cyclomaltooctaose With cyclodextrin glucanotransferase from Thermoanaerobacter sp. In aq. acetate buffer at 40℃; for 24h; pH=4.0; Enzymatic reaction; Stage #2: With amyloglucosidase from Aspergillus niger In aq. acetate buffer at 60℃; for 2h; Enzymatic reaction; regioselective reaction; | 0.21% |
Maltose
sodium ascorbate
2-O-α-D-glucopyranosyl L-ascorbate
Conditions | Yield |
---|---|
With acetate buffer; rice seed α-glucosidase; thiourea at 50℃; for 5h; |
water
sodium ascorbate
A
oxalic acid
B
L-threonic acid-4-lactone
Conditions | Yield |
---|---|
Behandeln des Natrium-Salzes oder anderer Alkalisalze; |
Conditions | Yield |
---|---|
In not given pptg. with methanol; | |
In not given pptg. with methanol; |
Conditions | Yield |
---|---|
With tris(2,2'-bipyridyl)ruthenium dichloride; C18H23N3NiS3(2+)*2ClO4(1-) In N,N-dimethyl acetamide; water pH=4; Catalytic behavior; Irradiation; |
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