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Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance White or almost white crystalline powder or colourless crystals Pass Identific

High purity Ascorbic acid with high quality and best price cas:50-81-7

Cas:50-81-7

Min.Order:1 Kilogram

FOB Price: $10.0 / 17.0

Type:Trading Company

inquiry

EAST CHEMSOURCES LIMITED

It 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

Ascorbic Acid

Cas:50-81-7

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Shanxi Zorui Biotechnology Co.Ltd.

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

Ascorbic Acid High Quality Food Supplement Vitamin C CAS 50-81-7

Cas:50-81-7

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Wuxi TAA Chemical Industry Co.,LTD.

1.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

Factory supply Ascorbic acid,Vitamin C with lower price/CAS 50-81-7

Cas:50-81-7

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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HANWAYS CHEMPHARM CO.,LIMITED

1, 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

VITAMIN C

Cas:50-81-7

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

HANGZHOU CLAKE BIOTECH CO.,LTD

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

Vitamin C

Cas:50-81-7

Min.Order:25 Kilogram

Negotiable

Type:Trading Company

inquiry

SJZ THLD IMP & EXP CO LTD

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

Ascorbic acid top grade from factory

Cas:50-81-7

Min.Order:500 Kilogram

FOB Price: $5.6 / 5.8

Type:Trading Company

inquiry

Golden Pharma Co., Limited

GOLDEN 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

L(+)-Ascorbic acid

Cas:50-81-7

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Dayang Chem (Hangzhou) Co.,Ltd.

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

L(+)-Ascorbic acid

Cas:50-81-7

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Simagchem Corporation

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

High quality L(+)-Ascorbic acid supplier in China

Cas:50-81-7

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Kono Chem Co.,Ltd

CAS 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

L(+)-Ascorbic acid/Antioxidant High quality Vitamin C 50-81-7

Cas:50-81-7

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Other

inquiry

Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

We 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

Vitamin C for injection 0.5g/vial

Cas:50-81-7

Min.Order:1 Gram

Negotiable

Type:Manufacturers

inquiry

Hebei yanxi chemical co.,LTD.

Hebei 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

L(+)-Ascorbic acid/Antioxidant High quality Vitamin C CAS 50-81-7

Cas:50-81-7

Min.Order:100 Gram

FOB Price: $2.0

Type:Manufacturers

inquiry

Wuhan Fortuna Chemical Co.,Ltd

Unique 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

Top quality L(+)-Ascorbic acid/Vitamin C Cas 50-81-7 with best price in BP/EP/USP/FCC

Cas:50-81-7

Min.Order:100 Kilogram

FOB Price: $5.0 / 7.0

Type:Trading Company

inquiry

Xi'an Quanao Biotech Co., Ltd.

Building 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

Natural &Organic Good Water Soluble health care Acerola Cherry Extract Vitamin C / VC 25% HPLC Powder

Cas:50-81-7

Min.Order:5 Kilogram

FOB Price: $32.0 / 46.0

Type:Manufacturers

inquiry

Hefei TNJ chemical industry co.,ltd

Superiority 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

Good quality L(+)-Ascorbic acid//Vitamin C//cas 50-81-7

Cas:50-81-7

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Ality Chemical Corporation

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

Factory Supply L(+)-Ascorbic acid

Cas:50-81-7

Min.Order:1

Negotiable

Type:Other

inquiry

Xi'an Xszo Chem Co., Ltd.

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

High Quality Food Grade VC-97SF 50-81-7 HACCP Manufacturer

Cas:50-81-7

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Sinoway Industrial Co., Ltd.

Our company SINOWAY `s advantages : 1) Specialized in pharmaceutical industrial for 35 years. 2) ISO 9001:2015 & SGS audited supplier . 3) A

Food grade Ascorbic acid / Vitamin C powder with lower price

Cas:50-81-7

Min.Order:100 Kilogram

Negotiable

Type:Trading Company

inquiry

Chengdu Lemeitian Pharmaceutical Technology Co,. Ltd

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,

vitamin C

Cas:50-81-7

Min.Order:10 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Shandong Jiulong Hisince Pharmaceutical Co.,Ltd.

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

Ascorbic Acid

Cas:50-81-7

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

COLORCOM LTD.

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

Ascorbic Acid

Cas:50-81-7

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Chemwill Asia Co., Ltd.

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

GMP factory Ascorbic acid Vitamin C

Cas:50-81-7

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Hubei DiBo chemical co., LTD

Name: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

L(+)-Ascorbic acid/cas:50-81-7/high quality/L(+)-Ascorbic acid material

Cas:50-81-7

Min.Order:25 Kilogram

FOB Price: $1.0 / 2.0

Type:Other

inquiry

LIDE PHARMACEUTICALS LIMITED

Advantage : 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&amp

L(+)-Ascorbic acid / LIDE PHARMA- Factory supply / Best price

Cas:50-81-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

L(+)-Ascorbic acid Basic information Product Name: L(+)-Ascorbic acid Synonyms: 3-Keto-L-gulofuranolactone;3-Oxo-L-gulofuranolactone;3-oxo-l-gulofuranolactone(enolf

L(+)-Ascorbic acid

Cas:50-81-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

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

L(+)-Ascorbic acid CAS: 50-81-7

Cas:50-81-7

Min.Order:1 Kilogram

FOB Price: $10.0 / 16.0

Type:Trading Company

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH 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

New production CAS 50-81-7 with best quality

Cas:50-81-7

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Wuhan Han Sheng New Material Technology Co.,Ltd

Our 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

Quality chinese products and factory supply with L(+)-Ascorbic acid CAS 50-81-7

Cas:50-81-7

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

Hebei Sankai Chemical Technology Co., Ltd

1. 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

Ascorbic acidCAS50-81-7

Cas:50-81-7

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

inquiry

Synthetic route

dikegulac
18467-77-1

dikegulac

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
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
62983-44-2

6-bromo-6-deoxy-(S)-ascorbic acid

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
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
144447-58-5

methyl 2-keto-3,5:4,6-di-O-ethylidene galactonate

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With hydrogenchloride; ethanol In dichloromethane at 60℃;83%
Methyl 2-keto-3,5:4,6-di-O-ethylidene-L-galactonate

Methyl 2-keto-3,5:4,6-di-O-ethylidene-L-galactonate

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With hydrogenchloride In ethanol; dichloromethane at 60℃; for 10h;83%
ethyl-3,5:4,6-di-O-methylene-L-lyxo-2-hexulosenate
74600-79-6

ethyl-3,5:4,6-di-O-methylene-L-lyxo-2-hexulosenate

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
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
377089-24-2

(S)-4-[3,4-Bis-(4-methoxy-benzyloxy)-furan-2-yl]-2,2-dimethyl-[1,3]dioxolane

A

4-methoxy-benzaldehyde
123-11-5

4-methoxy-benzaldehyde

B

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With oxygen In methanol; tetrachloromethane at 20℃; for 7h; Photolysis;A n/a
B 74%
D-xylo-2-hexulosonic acid
21675-47-8

D-xylo-2-hexulosonic acid

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
In water at 160℃; under 7500.75 Torr;68%
L-xylo-[2]hexulosonic acid amide

L-xylo-[2]hexulosonic acid amide

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With methanol; ammonia
L-xylosone
3445-23-6

L-xylosone

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
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;
2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With hydrogenchloride; water; butan-1-ol
With water at 100℃;
With hydrogenchloride; water
L-lyxo-[2]hexulosonic acid
91548-32-2

L-lyxo-[2]hexulosonic acid

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
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
1071558-27-4

(3R,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxo-hexanoic acid methyl ester

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With ethanol; triethylamine
With methanol; water
With methanol; sodium hydrogencarbonate
oxalic acid
144-62-7

oxalic acid

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
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
143916-28-3

methyl 2,5-di-O-acetyl-α-L-lyxo-hex-2-ulopyranosonate

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With hydrogenchloride; sodium methylate 1.) MeOH, 20 min, room temperature; Yield given. Multistep reaction;
5,6-anhydro-L-ascorbic acid
85366-67-2

5,6-anhydro-L-ascorbic acid

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With water; sodium hydrogencarbonate; sodium carbonate at 24℃; pH: 8; variation of time;
C46H34O32

C46H34O32

A

geraniin
60976-49-0

geraniin

B

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
for 3h; oxidative metabolizm; enzyme from fresh leaves and stems of Geranium thunbergii;
L-dehydroascorbic acid
490-83-5

L-dehydroascorbic acid

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
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;
L-dehydroascorbic acid
490-83-5

L-dehydroascorbic acid

A

Red Pigment

Red Pigment

B

Reduced Red Pigment

Reduced Red Pigment

C

Tris(2-deoxy-2-L-ascorbyl)amine

Tris(2-deoxy-2-L-ascorbyl)amine

D

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With Phenylalanine In ethanol for 0.333333h; Product distribution; Mechanism; Heating; other times, other amino acids; also in the presence of ascorbic acid;
5a-tocopheryl ascorbate

5a-tocopheryl ascorbate

A

α‑tocopherol quinone
758720-42-2

α‑tocopherol quinone

B

vitamin E
18920-63-3

vitamin E

C

C58H96O4

C58H96O4

D

ascorbic acid
50-81-7

ascorbic acid

E

L-dehydroascorbic acid
490-83-5

L-dehydroascorbic acid

Conditions
ConditionsYield
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
216872-53-6

3,5-O-benzylidene-6-O-t-butyldimethylsilyl-L-xylo-hex-2-ulosonic acid 1,4-lactone 2-hydrate

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With water; acetic acid at 70 - 75℃; for 4h; Yield given;
With acetic acid at 80℃; for 4h; Yield given;
hydrogenchloride
7647-01-0

hydrogenchloride

O4,O6-isopropylidene-L-xylo-[2]hexulosonic acid butyl ester

O4,O6-isopropylidene-L-xylo-[2]hexulosonic acid butyl ester

ascorbic acid
50-81-7

ascorbic acid

(R)-2-((S)-1,2-dihydroxy-ethyl)-4-hydroxy-5-methoxy-furan-3-one
87804-24-8

(R)-2-((S)-1,2-dihydroxy-ethyl)-4-hydroxy-5-methoxy-furan-3-one

water
7732-18-5

water

ascorbic acid
50-81-7

ascorbic acid

water
7732-18-5

water

L-gulono-1,4-lactone
1128-23-0

L-gulono-1,4-lactone

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
Einwirkung von Roentgen-Strahlen;
Einwirkung von γ-Strahlen;
Einwirkung von Kathoden-Strahlen;
GLUTATHIONE
70-18-8

GLUTATHIONE

water
7732-18-5

water

L-dehydroascorbic acid
490-83-5

L-dehydroascorbic acid

ascorbic acid
50-81-7

ascorbic acid

hydrogen sulfide
7783-06-4

hydrogen sulfide

water
7732-18-5

water

L-dehydroascorbic acid
490-83-5

L-dehydroascorbic acid

ascorbic acid
50-81-7

ascorbic acid

water
7732-18-5

water

thioacetamide
62-55-5

thioacetamide

L-dehydroascorbic acid
490-83-5

L-dehydroascorbic acid

ascorbic acid
50-81-7

ascorbic acid

dikegulac
18467-77-1

dikegulac

aqueous hydrochloric acid (11n)

aqueous hydrochloric acid (11n)

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
at 60℃; Rate constant;
at 70℃; Rate constant;
dikegulac
18467-77-1

dikegulac

aqueous hydrochloric acid (5n)

aqueous hydrochloric acid (5n)

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
at 60℃; Rate constant;
at 70℃; Rate constant;
O2,O3;O4,O6-diisopropylidene-ξ-L-xylo-<2>hexofuranosonic acid methyl ester

O2,O3;O4,O6-diisopropylidene-ξ-L-xylo-<2>hexofuranosonic acid methyl ester

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With hydrogenchloride; ethanol; water
ascorbic acid
50-81-7

ascorbic acid

L-dehydroascorbic acid
490-83-5

L-dehydroascorbic acid

Conditions
ConditionsYield
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;
acetone
67-64-1

acetone

ascorbic acid
50-81-7

ascorbic acid

5,6-O-isopropylidene-L-ascorbic acid
15042-01-0

5,6-O-isopropylidene-L-ascorbic acid

Conditions
ConditionsYield
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%
vinyl palmitate
693-38-9

vinyl palmitate

ascorbic acid
50-81-7

ascorbic acid

Ascorbyl palmitate
137-66-6

Ascorbyl palmitate

Conditions
ConditionsYield
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;
2,2-dimethoxy-propane
77-76-9

2,2-dimethoxy-propane

ascorbic acid
50-81-7

ascorbic acid

5,6-O-isopropylidene-L-ascorbic acid
15042-01-0

5,6-O-isopropylidene-L-ascorbic acid

Conditions
ConditionsYield
With hydrogenchloride; acetone for 1h;100%
With toluene-4-sulfonic acid In acetone100%
With hydrogenchloride In acetone for 1h;96.7%
sodium glycinate
6000-44-8

sodium glycinate

iron(II) chloride

iron(II) chloride

ascorbic acid
50-81-7

ascorbic acid

ferrous bisglycinate ascorbic acid chelate

ferrous bisglycinate ascorbic acid chelate

Conditions
ConditionsYield
In water at 55 - 60℃; for 4h;100%
ascorbic acid
50-81-7

ascorbic acid

strontium(II) L-ascorbic acid complex

strontium(II) L-ascorbic acid complex

Conditions
ConditionsYield
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
148960-51-4

4-(2-benzenesulfonylethyl)phenylamine

2-[2-(1,3-dioxan-2-yl)ethyl]-1-methylpyrrolidine fumarate
868618-74-0

2-[2-(1,3-dioxan-2-yl)ethyl]-1-methylpyrrolidine fumarate

ascorbic acid
50-81-7

ascorbic acid

3-(N-methyl-2(R)-pyrrolidinylmethyl)-5-(2-phenylsulphonylethyl)-1H-indole

3-(N-methyl-2(R)-pyrrolidinylmethyl)-5-(2-phenylsulphonylethyl)-1H-indole

Conditions
ConditionsYield
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%
nicotinamide
98-92-0

nicotinamide

ascorbic acid
50-81-7

ascorbic acid

ascorbic acid,nicotinamide
114374-92-4

ascorbic acid,nicotinamide

Conditions
ConditionsYield
In water pH=Ca. 3.3 - 3.9; Cooling with ice;100%
In methanol33%
5'-(4-methylphenyl)-3'-[2-(methylthio)ethyl]-3a',6a'-dihydro-2'H-spiro[indole-3,1'-pyrrolo[3,4-c]pyrrol]-2,4',6'(1H,3'H,5'H)-trione

5'-(4-methylphenyl)-3'-[2-(methylthio)ethyl]-3a',6a'-dihydro-2'H-spiro[indole-3,1'-pyrrolo[3,4-c]pyrrol]-2,4',6'(1H,3'H,5'H)-trione

ascorbic acid
50-81-7

ascorbic acid

5′-(4-methylphenyl)-3′-[2-(methylthio)ethyl]-3a′,6a′-dihydro-2′H-spiro[indole-3,1′-pyrrolo[3,4-c]pyrrol]-2,4′,6′(1H,3′H,5′H)-trione L-ascorbic acid

5′-(4-methylphenyl)-3′-[2-(methylthio)ethyl]-3a′,6a′-dihydro-2′H-spiro[indole-3,1′-pyrrolo[3,4-c]pyrrol]-2,4′,6′(1H,3′H,5′H)-trione L-ascorbic acid

Conditions
ConditionsYield
In ethanol; water Heating;100%
nicotinic acid
59-67-6

nicotinic acid

ascorbic acid
50-81-7

ascorbic acid

niacin, ascorbic acid

niacin, ascorbic acid

Conditions
ConditionsYield
In water for 0.166667h; pH=Ca. 2.8 - 3; Cooling with ice;100%
ethanolamine
141-43-5

ethanolamine

ascorbic acid
50-81-7

ascorbic acid

2-hydroxyethylammonium ascorbate

2-hydroxyethylammonium ascorbate

Conditions
ConditionsYield
In methanol at 25℃;100%
palmitic anhydride
623-65-4

palmitic anhydride

ascorbic acid
50-81-7

ascorbic acid

Ascorbyl palmitate
137-66-6

Ascorbyl palmitate

Conditions
ConditionsYield
With dmap at 80℃; for 8h; Temperature; Reagent/catalyst;99.45%
pentadecanoic acid anhydride
59252-34-5

pentadecanoic acid anhydride

ascorbic acid
50-81-7

ascorbic acid

vitamin C pentadecanoate

vitamin C pentadecanoate

Conditions
ConditionsYield
With dmap at 80℃; for 8h;99.31%
ascorbic acid
50-81-7

ascorbic acid

2-ethylhexanoic acid chloride
760-67-8

2-ethylhexanoic acid chloride

C22H36O8

C22H36O8

Conditions
ConditionsYield
With pyridine; tetrabutylammomium bromide In ethyl acetate at 50℃; for 0.5h; Reagent/catalyst;99.3%
capric anhydride
2082-76-0

capric anhydride

ascorbic acid
50-81-7

ascorbic acid

6-O-caproyl L-ascorbate

6-O-caproyl L-ascorbate

Conditions
ConditionsYield
With dmap at 80℃; for 8h;99.21%
lauric acid
143-07-7

lauric acid

ascorbic acid
50-81-7

ascorbic acid

6-O-dodecanoyl-L-ascorbic acid
16690-40-7

6-O-dodecanoyl-L-ascorbic acid

Conditions
ConditionsYield
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;
myristic anhydride
626-29-9

myristic anhydride

ascorbic acid
50-81-7

ascorbic acid

6-O-tetradecanoyl ascorbic acid
33425-76-2

6-O-tetradecanoyl ascorbic acid

Conditions
ConditionsYield
With dmap at 80℃; for 8h;99.14%
isononanoyl chloride
36727-29-4

isononanoyl chloride

ascorbic acid
50-81-7

ascorbic acid

C24H40O8

C24H40O8

Conditions
ConditionsYield
With pyridine; tetrabutylammomium bromide In ethyl acetate at 50℃; for 0.5h;99.1%
tridecanoic acid anhydride
53517-88-7

tridecanoic acid anhydride

ascorbic acid
50-81-7

ascorbic acid

vitamin C tridecanoate

vitamin C tridecanoate

Conditions
ConditionsYield
With dmap at 80℃; for 8h;99.01%
4-nitrobenzenediazonium tetrafluoroborate
456-27-9

4-nitrobenzenediazonium tetrafluoroborate

ascorbic acid
50-81-7

ascorbic acid

3-O-p-nitrobenzenediazoascorbic acid
121654-33-9

3-O-p-nitrobenzenediazoascorbic acid

Conditions
ConditionsYield
In water; acetonitrile for 0.5h;99%
1,1,1,3,3,3-hexamethyl-disilazane
999-97-3

1,1,1,3,3,3-hexamethyl-disilazane

ascorbic acid
50-81-7

ascorbic acid

2,3,5,6-tetrakis-O-(trimethylsilyl) ascorbate
55517-56-1

2,3,5,6-tetrakis-O-(trimethylsilyl) ascorbate

Conditions
ConditionsYield
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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