Shanghai SOYOUNG onsite assessment conducted by Bureau Veritas commissioned at June 2018. Assessed Supplier of Shanghai SOYOUNG is a faithful and professional supplier of health raw materials in pharmacy, food, cosmetic and other fields for many ye
Cas:83-88-5
Min.Order:25 Kilogram
FOB Price: $63.0
Type:Lab/Research institutions
inquiry1. GMP AVALIABLE ; 2. IN STOCK 3. FAST REPLY QUALIFED ; EFFICIENCY; RESPONSIBLE Appearance:Yellow or orange-yellow crystalline powder Storage:in cool Package:25kg/drum Application:active pharmaceutical ingredient Transportation:to
Hubei Lidu New Materials Technology Co. , Ltd. is located in No. 12,3C Industrial Park, Zhongxiang Economic Development Zone, Hubei Province. The company is committed to fine chemical raw materials, pharmaceutical intermediates and other production,
Cartoon Ingredients Co.,Ltd.is located in NanJing, the capital of Jiangsu Province.with Convenient traffic As a manufacturer, the company mainly engaged in providing Food ingredients, Herbal extracts, Vitamins, APIs and Fine chemicals &a
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:83-88-5
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryItems Standard Result Appearance Yellow or orange-yellow granule Conforms Identification Pos
Cas:83-88-5
Min.Order:1 Kilogram
FOB Price: $75.0 / 95.0
Type:Manufacturers
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:83-88-5
Min.Order:1 Kilogram
Negotiable
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:83-88-5
Min.Order:1 Kilogram
Negotiable
Type:Manufacturers
inquirySuperiority KONO is a leading manufacturer and supplier of chemicals in China. We develop ,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals. We could give you: 1.Best quality
Cas:83-88-5
Min.Order:1 Kilogram
FOB Price: $50.0 / 60.0
Type:Other
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 developm
Cas:83-88-5
Min.Order:1 Metric Ton
FOB Price: $1.0 / 3.0
Type:Manufacturers
inquiryUnique advantages for Riboflavin (Vitamin B2) CAS 83-88-5 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Yellow or orange-yellow crystalline powder Storage:Store in 2-8℃ P
Cas:83-88-5
Min.Order:25 Kilogram
FOB Price: $58.0 / 61.0
Type:Trading Company
inquiryCome From Nature / Building Healthy Life Beauty In Your Face / Nourishment Your Taste Bud. Professional Factory: We has a complete production and operating system, with an annual output capacity of 2000 tons. It can produce variety of conten
Cas:83-88-5
Min.Order:1 Kilogram
FOB Price: $59.0 / 69.0
Type:Manufacturers
inquiryVitamin B2(Riboflavin) Cas No:83-88-5 USP2021 Name Riboflavin Synonyms 7,8-Dimethyl-10-ribitylisoalloxazine; Lactoflavine; Vitamin B2 Molecular Structure HANGZHOU THINK
1, 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:83-88-5
Min.Order:1 Metric Ton
Negotiable
Type:Trading Company
inquiryVitamin B2 Commodity Name Riboflavin Flowing Particle(Vitamin B2 80%) Vitamin B2 98% CAS No 83-88-5 83-88-5 M.F. C17H20N4O6 C17H20N4O6 M.W.
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
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:83-88-5
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
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,
Shanghai 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:83-88-5
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
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:83-88-5
Min.Order:1 Kilogram
Negotiable
Type:Other
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
Cas:83-88-5
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryName:iboflavin CAS NO:83-88-5 Grade: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 Product
Cas:83-88-5
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
Type:Other
inquiryTIANFUCHEM-- 83-88-5--High purity Riboflavin in stock Our company was built in 2009 with an ISO certificate.In the past 10 years, we have grown up as a famous fine chemicals supplier in China And we had established stable business relat
Cas:83-88-5
Min.Order:1 Metric Ton
FOB Price: $2000.0
Type:Lab/Research institutions
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 manufacturin
Cas:83-88-5
Min.Order:1 Kilogram
FOB Price: $1.0 / 10.0
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:83-88-5
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiry1. Product advantages ♦ High purity, all above 98.5%, no impurities after dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available ♦ W
Cas:83-88-5
Min.Order:1 Kilogram
FOB Price: $289.0 / 499.0
Type:Trading Company
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:83-88-5
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryName Riboflavin Synonyms 7,8-Dimethyl-10-ribitylisoalloxazine; Lactoflavine; Vitamin B2 Molecular Structure
1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:Yellow to orange/yellow crystalline powder Storage:Store in
Cas:83-88-5
Min.Order:100 Gram
Negotiable
Type:Other
inquiryBARBITURIC ACID
N-<3,4-dimethyl-6-(phenylazo)phenyl>-D-ribitylamine
riboflavin
Conditions | Yield |
---|---|
In acetic acid; butan-1-ol for 4h; Heating; | 74.2% |
Conditions | Yield |
---|---|
With calcium methylate | |
With sodium methylate |
1,4-dioxane
BARBITURIC ACID
N-<3,4-dimethyl-6-(phenylazo)phenyl>-D-ribitylamine
acetic acid
riboflavin
BARBITURIC ACID
1-(2-biphenyl-2-ylazo-4,5-dimethyl-anilino)-D-1-deoxy-ribitol
riboflavin
Conditions | Yield |
---|---|
With boric acid | |
With propionic acid |
4a-Hydroperoxy-7,8-dimethyl-10-((2S,3S,4R)-2,3,4,5-tetrahydroxy-pentyl)-5,10-dihydro-4aH-benzo[g]pteridine-2,4-dione
riboflavin
Conditions | Yield |
---|---|
In water Rate constant; |
4a-(1-Hydroxy-ethylperoxy)-7,8-dimethyl-10-((2S,3S,4R)-2,3,4,5-tetrahydroxy-pentyl)-5,10-dihydro-4aH-benzo[g]pteridine-2,4-dione
A
1-hydroxyethylhydroperoxide
B
riboflavin
Conditions | Yield |
---|---|
In water Rate constant; |
4a-(2-Hydroxy-2-methyl-propylperoxy)-7,8-dimethyl-10-((2S,3S,4R)-2,3,4,5-tetrahydroxy-pentyl)-5,10-dihydro-4aH-benzo[g]pteridine-2,4-dione
A
peroxy-t-butanol
B
riboflavin
Conditions | Yield |
---|---|
In water Rate constant; |
lampteroflavin
riboflavin
Conditions | Yield |
---|---|
With hydrogenchloride at 60℃; for 1.33333h; |
2,5-diamino-6-hydroxy-4-ribitylaminopyrimidine-5'-phosphate
dimethylglyoxal
riboflavin
Conditions | Yield |
---|---|
1) cell extract of Candida guilliermondii ATCC 9058, phosphatase; 2) riboflavin synthase; Yield given. Multistep reaction; |
dimethylglyoxal
2,5-Diamino-6-ribitylamino-4(3H)-pyrimidinone 5'-phosphate
riboflavin
Conditions | Yield |
---|---|
With phosphate buffer; 1,4-dithio-erythritol; pyrimidine deaminase; riboflavin synthase; magnesium chloride; alkaline phosphatase 1.) 1 h, 37 deg C, 2.) 3 h, 37 deg C; Yield given. Multistep reaction; |
RFH2
riboflavin
Conditions | Yield |
---|---|
With HEPES buffer; Hg(II)*EDTA In water at 30℃; Rate constant; at pH 7.4; | |
With C12H13O2(CH3)3(O)(OO) In acetonitrile at 37℃; for 0.166667h; pH=7.4; aq. phosphate buffer; Inert atmosphere; | 100 %Spectr. |
With Lactococcus lactis dihydroorotate dehydrogenase; oxygen Kinetics; Reagent/catalyst; Enzymatic reaction; |
pyrimidine-2,4,5,6(1H,3H)-tetraone
riboflavin
Conditions | Yield |
---|---|
With boric acid; acetic acid | |
With ethanol; tin(ll) chloride | |
With ethanol; hydrogen sulfide | |
With boric acid; acetic acid |
Conditions | Yield |
---|---|
With pyridine |
Conditions | Yield |
---|---|
With acetic acid |
Conditions | Yield |
---|---|
With hydrogenchloride; palladium on activated charcoal; nitrogen anschliessenden Einwirken von Luft auf die Reaktionsloesung; |
riboflavin
Conditions | Yield |
---|---|
With sodium hydroxide Erwaermen des Reaktionsprodukts mit Alloxan in wss. HCl bzw. in Essigsaeure unter Zusatz von Natriumacetat und H3BO3; | |
With potassium hydroxide Erwaermen des Reaktionsprodukts mit Alloxan in wss. HCl bzw. in Essigsaeure unter Zusatz von Natriumacetat und H3BO3; |
hydrogenchloride
flavin adenine dinucleotide
A
lumiflavin
B
5'-adenosine monophosphate
C
Flavin mononucleotide
D
riboflavin
Conditions | Yield |
---|---|
Adenin, O5-Phosphono-D-ribose und H3PO4; |
water
flavin adenine dinucleotide
A
lumiflavin
B
5'-adenosine monophosphate
C
Flavin mononucleotide
D
riboflavin
Conditions | Yield |
---|---|
vom pH 3-9; | |
bei der Einwirkung von Sonnenlicht; |
Conditions | Yield |
---|---|
mit sichtbares oder ultraviolettes Licht.Irradiation; |
riboflavin
Conditions | Yield |
---|---|
With Escherichia coli ribonucleotide reductase active-R2 form In phosphate buffer at 22℃; pH=7.0; Kinetics; Further Variations:; Reagents; Oxidation; |
Conditions | Yield |
---|---|
In phosphate buffer at 22℃; pH=7.0; Kinetics; disproportionation; |
6,7-dimethyl-8-ribityllumazine
A
5-amino-6-(D-ribitylamino)uracil
B
riboflavin
Conditions | Yield |
---|---|
With ethylenediaminetetraacetic acid; riboflavin synthase from Escherichia coli; 5-(4-phosphonobutyryl)amino-6-D-ribitylaminouracil In phosphate buffer Enzyme kinetics; Further Variations:; Reagents; | |
With Tris hydrochloride buffer; sodium chloride In dimethyl sulfoxide at 27℃; pH=7.0; Enzyme kinetics; Further Variations:; Reagents; | |
With recombinant Mycobacterium tuberculosis riboflavin synthase; 2-(2-oxo-1,2-dihydrobenzo[cd]indole-6-sulfonamido)ethyl dihydrogen phosphate; water; tris hydrochloride; sodium chloride; D,L-dithiothreitol In dimethyl sulfoxide at 27℃; for 0.5h; pH=7; Kinetics; Reagent/catalyst; aq. buffer; Enzymatic reaction; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 1.) 34percent aq. HCl, 40percent aq. sodium nitrite, 2.) 20percent aq. sodium acetate / 1.) 15-20 deg C, 2.) 2 h 2: 74.2 percent / butan-1-ol; acetic acid / 4 h / Heating View Scheme |
L-ribo-5-(3.4-dimethyl-anilino)-1.2.3.4-tetraacetoxy-pentane
riboflavin
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: und Behandlung des Reaktionsprodukts mit Natriummethylat in Methanol View Scheme | |
Multi-step reaction with 2 steps 1: und Behandlung des Reaktionsprodukts mit Natriummethylat in Methanol View Scheme |
BARBITURIC ACID
1-N-D-ribitylamino-3,4-dimethyl-6-phenylazobenzene
riboflavin
Conditions | Yield |
---|---|
With Trimethylacetic acid In 2-methyl-propan-1-ol | |
In 2-methyl-propan-1-ol | |
In 2-methyl-propan-1-ol |
BARBITURIC ACID
2-methylpropyl acetate
1-N-D-ribitylamino-3,4-dimethyl-6-phenylazobenzene
riboflavin
Conditions | Yield |
---|---|
In 2-methyl-propan-1-ol; acetic acid |
Conditions | Yield |
---|---|
With pyridine at 120℃; for 0.333333h; | 99% |
With perchloric acid In acetic acid at 40℃; for 0.5h; | 95% |
With perchloric acid In acetic acid at 40℃; for 1h; Inert atmosphere; | 95% |
Conditions | Yield |
---|---|
Stage #1: riboflavin With sulfuric acid; periodic acid In water at 0℃; for 0.5h; Darkness; Stage #2: With sodium carbonate In water at 18 - 25℃; pH=3.8 - 3.9; | 94% |
Stage #1: riboflavin With sulfuric acid; periodic acid at 20℃; for 1h; Stage #2: In toluene Heating; Further stages.; | 49% |
With sulfuric acid; periodic acid unter Liehtausschluss; |
Conditions | Yield |
---|---|
With camphor-10-sulfonic acid In N,N-dimethyl-formamide Etherification; | 90% |
(triethylphosphine)chlorogold(I)
riboflavin
(C2H5)3PAu(C17H19N4O6)*H2O
Conditions | Yield |
---|---|
With NaOH; H2O In water addn. of solid Et3PAuCl to a soln. of riboflavin in aq. NaOH; the mixt.was shaken for 5 min.;; the ppt. was filtered off, washed with H2O, acetone, and Et2O, and dried under vac.; elem. anal.;; | 90% |
riboflavin
10-(2,2-dihydroxylethyl)-7,8-dimethylisoalloxazine
Conditions | Yield |
---|---|
With sodium periodate In water at 25℃; for 17h; | 86% |
With sodium periodate In water at 20℃; for 16h; Darkness; | 76% |
With sodium periodate | |
With sodium periodate In water for 3h; | |
With sodium periodate In water at 20℃; |
riboflavin
6,7-dimethyl-1-((2S,3S,4R)-2,3,4,5-tetrahydroxypentyl)-1,4-dihydroquinoxaline-2,3-dione
Conditions | Yield |
---|---|
Stage #1: riboflavin With sodium hydroxide at 90℃; for 1h; Stage #2: With dihydrogen peroxide In water at 0 - 20℃; for 12h; | 84% |
Multi-step reaction with 2 steps 1.1: sodium hydroxide / 1 h / 90 °C / Inert atmosphere 1.2: 0 °C / pH 3 / Inert atmosphere 2.1: sodium hydroxide; dihydrogen peroxide / water / 12 h / 0 - 20 °C / Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
With pyridine; trichlorophosphate at 73℃; for 4.5h; Inert atmosphere; | 82% |
Conditions | Yield |
---|---|
With perchloric acid at 45℃; for 0.666667h; Schlenk technique; | 80% |
With perchloric acid |
Conditions | Yield |
---|---|
With dmap; triethylamine; diisopropyl-carbodiimide In N,N-dimethyl-formamide at 50℃; Darkness; Inert atmosphere; | 78% |
riboflavin
6,7-dimethyl-3-oxo-4-((2S,3S,4R)-2,3,4,5-tetrahydroxypentyl)-3,4-dihydroquinoxaline-2-carboxylic acid
Conditions | Yield |
---|---|
Stage #1: riboflavin With sodium hydroxide at 90℃; for 1h; Inert atmosphere; Stage #2: With sulfuric acid In water at 0℃; pH=3; Inert atmosphere; | 74% |
Stage #1: riboflavin With water; sodium hydroxide at 90℃; for 2h; Stage #2: With acetic acid at 20℃; pH=6; | 41 g |
acetone
riboflavin
7,8-dimethyl-10-(((4S,4'R,5S)-2,2,2',2'-tetramethyl-[4,4'-bi(1,3-dioxolan)]-5-yl)methyl)benzo[g]pteridine-2,4(3H,10H)-dione
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In N,N-dimethyl-formamide at 20℃; for 72h; | 72% |
Conditions | Yield |
---|---|
With sodium periodate In water at 50℃; for 24h; | 70% |
With sodium periodate In water at 50℃; for 24h; | 70% |
With methanol; air |
Conditions | Yield |
---|---|
With dmap at 40℃; for 12h; Inert atmosphere; | 67% |
Conditions | Yield |
---|---|
With pyridine at 110℃; for 1h; | 64% |
In pyridine at 110℃; for 4h; | 63.4% |
With pyridine |
Conditions | Yield |
---|---|
With palladium 10% on activated carbon; water; hydrogen In ethanol at 20℃; for 168h; | 62% |
4-vinylbenzaldehyde diethyl acetal
riboflavin
Conditions | Yield |
---|---|
With p-toluenesulfonic acid monohydrate; hydroquinone In N,N-dimethyl-formamide at 80℃; for 3h; Inert atmosphere; | 56% |
benzaldehyde dimethyl acetal
riboflavin
10-[(2S,4S,5S,6R)-5-hydroxy-6-(hydroxymethyl)-2-phenyl-1,3-dioxan-4-yl]methyl-7,8-dimethylbenzo[g]pteridine-2,4(3H,10H)-dione
Conditions | Yield |
---|---|
With camphor-10-sulfonic acid In N,N-dimethyl-formamide Etherification; | 50% |
With (1S)-10-camphorsulfonic acid In N,N-dimethyl-formamide at 80℃; Darkness; | 22% |
With camphor-10-sulfonic acid In N,N-dimethyl-formamide at 50℃; under 45.0045 Torr; for 16h; | 14% |
Conditions | Yield |
---|---|
With Phosphocreatine; creatine phosphokinase from rabbit muscle; corynebacterium ammoniagenes FAD synthetase; 2-amino-2-hydroxymethyl-1,3-propanediol; magnesium chloride In aq. buffer at 25℃; for 24h; pH=7.6; Enzymatic reaction; | 47% |
Conditions | Yield |
---|---|
With pyridine at 100℃; Inert atmosphere; | 44% |
Conditions | Yield |
---|---|
With Phosphocreatine; creatine phosphokinase from rabbit muscle; corynebacterium ammoniagenes FAD synthetase; ATP; 2-amino-2-hydroxymethyl-1,3-propanediol; magnesium chloride In aq. buffer at 25℃; for 24h; pH=7.6; Enzymatic reaction; | 40% |
Conditions | Yield |
---|---|
With pyridine; triethylamine In 1,4-dioxane; water at 5 - 10℃; for 0.583333h; | 38.9% |
4,4'-dimethoxytrityl chloride
riboflavin
Conditions | Yield |
---|---|
With pyridine; dmap; triethylamine at 20℃; Inert atmosphere; | 35% |
Conditions | Yield |
---|---|
In N,N-dimethyl-formamide at 45℃; for 144h; subtilisin; | 25% |
Conditions | Yield |
---|---|
In dimethyl sulfoxide at 65℃; | 12.5% |
butanoic acid anhydride
riboflavin
A
riboflavin 5'-monobutyrate
B
riboflavin 2’,3’,4’,5’-tetrabutanoate
Conditions | Yield |
---|---|
With pyridine at 37℃; for 14h; | A 10% B n/a |
Conditions | Yield |
---|---|
With pyridine at 120 - 140℃; for 3h; | 9.8% |
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