Items Standard Result Appearance White or almost white crystalline powder or colourless crystals Pass Identific
Cas:50-81-7
Min.Order:1 Kilogram
FOB Price: $10.0 / 17.0
Type:Trading Company
inquiryIt applies mainly to production of various medicines as clinically important material for supplementary cure practice in different sectors. Being food additives, it acts as superior and reliable agent in nutrition, antiseptic and flour processing a
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:50-81-7
Min.Order:1 Kilogram
Negotiable
Type:Other
inquiry1.A strong technical force and advanced processing equipments. The quality of the products has been strictly inspected and all kinds of index have reached or exceeded domestic and international standards. 2. Now we have established long-term stab
Cas:50-81-7
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Other
inquiry1, High quality with competitive price: 1)Standard: Enterprise Standard 2)All Purity min 99% 3)We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1)Parcel can be sent out in 24 hours afte
1. GMP AVALIABLE ; 2. IN STOCK 3. FAST REPLY QUALIFED ; EFFICIENCY; RESPONSIBLE Appearance:WHITE POWDER Storage:in cool Package:25kg/drum Application:active pharmaceutical ingredient Transportation:as request Port:any port
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:50-81-7
Min.Order:500 Kilogram
FOB Price: $5.6 / 5.8
Type:Trading Company
inquiryGOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
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
Cas:50-81-7
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
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:50-81-7
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryCAS No.: 50-81-7 Other Names: Antioxidant Vitamin C MF: C6H8O6 Place of Origin: China (Mainland) Type: Vitamins, Amino Acids and Coenzymes, Antioxidant Type Food Pharm Grade
Cas:50-81-7
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Other
inquiryWe can provide GMP validation service that complies with SFDA, FDA, WHO and EU EMPA.Excellent registration team could help us easlily to register our products in different countries.If you and your customer are interested in some products or need C
Cas:50-81-7
Min.Order:1 Gram
Negotiable
Type:Manufacturers
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:50-81-7
Min.Order:100 Gram
FOB Price: $2.0
Type:Manufacturers
inquiryUnique advantages for L(+)-Ascorbic acid/Vitamin C Cas 50-81-7 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White or almost white crystalline powder or colorless crystals
Cas:50-81-7
Min.Order:100 Kilogram
FOB Price: $5.0 / 7.0
Type:Trading Company
inquiryBuilding Healthy Life Professional Factory We has a complete production and operating system, with an annual output capacity of 2000 tons. It can produce variety of content and proportion of extract according to the demand . Appearance:Pink fine
Cas:50-81-7
Min.Order:5 Kilogram
FOB Price: $32.0 / 46.0
Type:Manufacturers
inquirySuperiority Service we can provide: 1. Mixed container: We can mix different items in one container. 2. Quality control: Before shipment, we can provide free sample for test. Inspection before shipping. 3. Packing: We can pack acco
Cas:50-81-7
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
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
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:50-81-7
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryOur company SINOWAY `s advantages : 1) Specialized in pharmaceutical industrial for 35 years. 2) ISO 9001:2015 & SGS audited supplier . 3) A
Cas:50-81-7
Min.Order:100 Kilogram
Negotiable
Type:Trading Company
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,
1. high quality 2. competitive price 3. professional manufacturer 4. best service 5. loyal and honest supplier Appearance:whilt Powder Storage:cool and dryer Package:durm Application:api Transportation:by sea or
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
GMP Factory Highly quality factory, Ascorbic acid Vitamin C L(+)-Ascorbic acid Chemwill Asia co.,Ltd is one of the leading manufacturer of Organic compounds in CHINA. Our main production base is located in Xuzhou industry
Cas:50-81-7
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquiryName:L(+)-Ascorbic acid CAS no:50-81-7 Grade:Scientific research and export Molecular formula:C6H8O6 Molecular weight:176.12 Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data storage
Cas:50-81-7
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
Type:Other
inquiryAdvantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&
Cas:50-81-7
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryL(+)-Ascorbic acid Basic information Product Name: L(+)-Ascorbic acid Synonyms: 3-Keto-L-gulofuranolactone;3-Oxo-L-gulofuranolactone;3-oxo-l-gulofuranolactone(enolf
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 manufacturin
Cas:50-81-7
Min.Order:1 Kilogram
FOB Price: $10.0 / 16.0
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:50-81-7
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:50-81-7
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
inquiry1. Product advantages ♦ High purity, all above 98.5%, no impurities after the dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available &diam
Cas:50-81-7
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
Type:Trading Company
inquirydikegulac
ascorbic acid
Conditions | Yield |
---|---|
With hydrogenchloride In toluene at 70℃; for 6h; | 94% |
With hydrogenchloride; glycerol monostearate In Trichloroethylene at 50℃; for 0.0833333h; Kinetics; other temperatures, other times; |
6-bromo-6-deoxy-(S)-ascorbic acid
ascorbic acid
Conditions | Yield |
---|---|
With sodium carbonate In water for 25h; Ambient temperature; | 89% |
With sodium carbonate In water-d2 for 21h; pH: 9; |
methyl 2-keto-3,5:4,6-di-O-ethylidene galactonate
ascorbic acid
Conditions | Yield |
---|---|
With hydrogenchloride; ethanol In dichloromethane at 60℃; | 83% |
ascorbic acid
Conditions | Yield |
---|---|
With hydrogenchloride In ethanol; dichloromethane at 60℃; for 10h; | 83% |
ethyl-3,5:4,6-di-O-methylene-L-lyxo-2-hexulosenate
ascorbic acid
Conditions | Yield |
---|---|
With hydrogenchloride In ethanol for 4h; Heating; | 81.09% |
(S)-4-[3,4-Bis-(4-methoxy-benzyloxy)-furan-2-yl]-2,2-dimethyl-[1,3]dioxolane
A
4-methoxy-benzaldehyde
B
ascorbic acid
Conditions | Yield |
---|---|
With oxygen In methanol; tetrachloromethane at 20℃; for 7h; Photolysis; | A n/a B 74% |
D-xylo-2-hexulosonic acid
ascorbic acid
Conditions | Yield |
---|---|
In water at 160℃; under 7500.75 Torr; | 68% |
ascorbic acid
Conditions | Yield |
---|---|
With methanol; ammonia |
Conditions | Yield |
---|---|
With potassium cyanide; hydrogen cyanide; water anschl. mit wss. HCl; | |
With potassium cyanide; water anschl. mit wss. HCl; | |
With hydrogen cyanide; ammonia; water anschl. mit wss. HCl; | |
With potassium cyanide; water; calcium chloride anschl. mit wss. HCl; | |
With potassium cyanide; water anschl. mit wss. HCl; |
Conditions | Yield |
---|---|
With hydrogenchloride; water; butan-1-ol | |
With water at 100℃; | |
With hydrogenchloride; water |
L-lyxo-[2]hexulosonic acid
ascorbic acid
Conditions | Yield |
---|---|
With hydrogenchloride; ethanol | |
With diazomethane; methanol; diethyl ether anschl. mit Blei(II)-acetat; |
(3R,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxo-hexanoic acid methyl ester
ascorbic acid
Conditions | Yield |
---|---|
With ethanol; triethylamine | |
With methanol; water | |
With methanol; sodium hydrogencarbonate |
Conditions | Yield |
---|---|
With potassium bromate; cerium (IV) sulfate In sulfuric acid Belousov-Zhabotinski oscillation reaction; |
methyl 2,5-di-O-acetyl-α-L-lyxo-hex-2-ulopyranosonate
ascorbic acid
Conditions | Yield |
---|---|
With hydrogenchloride; sodium methylate 1.) MeOH, 20 min, room temperature; Yield given. Multistep reaction; |
5,6-anhydro-L-ascorbic acid
ascorbic acid
Conditions | Yield |
---|---|
With water; sodium hydrogencarbonate; sodium carbonate at 24℃; pH: 8; variation of time; |
Conditions | Yield |
---|---|
for 3h; oxidative metabolizm; enzyme from fresh leaves and stems of Geranium thunbergii; |
Conditions | Yield |
---|---|
With potassium bromate; cerium (IV) sulfate In sulfuric acid Belousov-Zhabotinski oscillation reaction; | |
With isoascorbic acid In phosphate buffer at 20℃; for 24h; pH=7.4; Product distribution; Reduction; | |
With ethylenediaminetetraacetic acid; water; tris-(2-carboxyethyl)-phosphine hydrochloride; meta-phosphoric acid for 4h; pH=1.5; Cooling with ice; | |
With phosphoric acid In water at 25℃; for 0.5h; Darkness; |
Conditions | Yield |
---|---|
With Phenylalanine In ethanol for 0.333333h; Product distribution; Mechanism; Heating; other times, other amino acids; also in the presence of ascorbic acid; |
A
α‑tocopherol quinone
B
vitamin E
D
ascorbic acid
E
L-dehydroascorbic acid
Conditions | Yield |
---|---|
With water In methanol for 24h; Mechanism; var. pH and time; |
3,5-O-benzylidene-6-O-t-butyldimethylsilyl-L-xylo-hex-2-ulosonic acid 1,4-lactone 2-hydrate
ascorbic acid
Conditions | Yield |
---|---|
With water; acetic acid at 70 - 75℃; for 4h; Yield given; | |
With acetic acid at 80℃; for 4h; Yield given; |
(R)-2-((S)-1,2-dihydroxy-ethyl)-4-hydroxy-5-methoxy-furan-3-one
water
ascorbic acid
Conditions | Yield |
---|---|
Einwirkung von Roentgen-Strahlen; | |
Einwirkung von γ-Strahlen; | |
Einwirkung von Kathoden-Strahlen; |
dikegulac
ascorbic acid
Conditions | Yield |
---|---|
at 60℃; Rate constant; | |
at 70℃; Rate constant; |
dikegulac
ascorbic acid
Conditions | Yield |
---|---|
at 60℃; Rate constant; | |
at 70℃; Rate constant; |
ascorbic acid
Conditions | Yield |
---|---|
With hydrogenchloride; ethanol; water |
Conditions | Yield |
---|---|
With N-bromosaccharin; acetic acid for 0.0333333h; Ambient temperature; | 100% |
With hexacyanoferrate(III) In water at 25℃; Mechanism; Rate constant; influence of pH (-1 to 1), ionic strength; | |
With starch-KI; chloroamine-T Product distribution; conditions for analytical determination, other halogenide used; |
Conditions | Yield |
---|---|
With Amberlite IR-120 for 2h; Heating; | 100% |
With acetyl chloride at 7 - 20℃; for 11h; | 100% |
With acetyl chloride at 40℃; for 2h; | 95% |
Conditions | Yield |
---|---|
With Lipozyme TL IM In tert-Amyl alcohol at 40℃; Enzymatic reaction; | 100% |
With phenylboronic acid; dmap 1.) water, t-BuOH, 2.) t-BuOH, 4 days, 25 deg C; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With hydrogenchloride; acetone for 1h; | 100% |
With toluene-4-sulfonic acid In acetone | 100% |
With hydrogenchloride In acetone for 1h; | 96.7% |
Conditions | Yield |
---|---|
In water at 55 - 60℃; for 4h; | 100% |
ascorbic acid
Conditions | Yield |
---|---|
With strontium(II) carbonate for 1 - 2h; Product distribution / selectivity; | 100% |
With strontium(II) carbonate In water at 80℃; for 7h; | 78% |
With strontium hydroxide; strontium chloride In water at 30 - 50℃; Product distribution / selectivity; | 32% |
4-(2-benzenesulfonylethyl)phenylamine
2-[2-(1,3-dioxan-2-yl)ethyl]-1-methylpyrrolidine fumarate
ascorbic acid
Conditions | Yield |
---|---|
Stage #1: 4-(2-benzenesulfonylethyl)phenylamine With sulfuric acid; sodium nitrite In water; acetonitrile at 4℃; for 1h; Stage #2: ascorbic acid In water; acetonitrile at 4 - 20℃; for 17h; Stage #3: 2-[2-(1,3-dioxan-2-yl)ethyl]-1-methylpyrrolidine fumarate With potassium hydroxide Product distribution / selectivity; more than 3 stages; | 100% |
Conditions | Yield |
---|---|
In water pH=Ca. 3.3 - 3.9; Cooling with ice; | 100% |
In methanol | 33% |
ascorbic acid
Conditions | Yield |
---|---|
In ethanol; water Heating; | 100% |
Conditions | Yield |
---|---|
In water for 0.166667h; pH=Ca. 2.8 - 3; Cooling with ice; | 100% |
Conditions | Yield |
---|---|
In methanol at 25℃; | 100% |
Conditions | Yield |
---|---|
With dmap at 80℃; for 8h; Temperature; Reagent/catalyst; | 99.45% |
Conditions | Yield |
---|---|
With dmap at 80℃; for 8h; | 99.31% |
Conditions | Yield |
---|---|
With pyridine; tetrabutylammomium bromide In ethyl acetate at 50℃; for 0.5h; Reagent/catalyst; | 99.3% |
Conditions | Yield |
---|---|
With dmap at 80℃; for 8h; | 99.21% |
Conditions | Yield |
---|---|
With Amberlyst 15 ion exchange resin In ethanol; water at 60℃; for 3h; Temperature; | 99.2% |
With sulfuric acid | |
With sulfuric acid at 40℃; | |
With lipase from Candida antarctica type B (Chirazyme(R) L-2 C2) In acetone at 50℃; | |
With Chirazyme(R) L-2 C2 In acetone at 55℃; for 24h; |
Conditions | Yield |
---|---|
With dmap at 80℃; for 8h; | 99.14% |
Conditions | Yield |
---|---|
With pyridine; tetrabutylammomium bromide In ethyl acetate at 50℃; for 0.5h; | 99.1% |
Conditions | Yield |
---|---|
With dmap at 80℃; for 8h; | 99.01% |
4-nitrobenzenediazonium tetrafluoroborate
ascorbic acid
3-O-p-nitrobenzenediazoascorbic acid
Conditions | Yield |
---|---|
In water; acetonitrile for 0.5h; | 99% |
1,1,1,3,3,3-hexamethyl-disilazane
ascorbic acid
2,3,5,6-tetrakis-O-(trimethylsilyl) ascorbate
Conditions | Yield |
---|---|
Stage #1: 1,1,1,3,3,3-hexamethyl-disilazane; ascorbic acid; trifluorormethanesulfonic acid In tetrahydrofuran at 66 - 70℃; for 6h; Stage #2: With calcium carbonate In tetrahydrofuran for 2h; Stage #3: With 1,1,1,3,3,3-hexamethyl-disilazane at 70℃; Product distribution / selectivity; | 99% |
In 1,2-dimethoxyethane at 50℃; for 8h; Product distribution / selectivity; | 95% |
With pyridine at 100℃; for 2h; | 82% |
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