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CAS No 50-81-7 , (2R)-2-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2H-furan-5-one Search by region : China

  • Name: (2R)-2-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2H-furan-5-one
  • Synonyms: Cebione; Ascorbicap; Cecon; Cevalin; ascorbate;(2R)-2-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2H-furan-5-one; vitamin C; Ascoltin; Cevex;l-ascorbic acid;
  • CAS Registry Number:
  • Melting Point: 190-192 ºC
  • Density: 1,65 g/cm3
  • Refractive index: 21 ° (C=10, H2O)
  • Alpha: 20.5 º (C=10,H2O)
  • Water Solubility: 333 G/L (20 ºC)
  • Safety Statements: S24/25
  • Hazard Symbols: Xn
  • EINECS: 200-066-2
  • Molecular Weight: 176.12412
  • InchiKey: CIWBSHSKHKDKBQ-JLAZNSOCSA-N
  • InChI: InChI=1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,
    5+/m0/s1
  • Risk Statements: S24/25
  • Molecular Formula: C6H8O6
  • Molecular Structure:CAS No:50-81-7 (2R)-2-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2H-furan-5-one

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50-81-7 vitamin c

  • Vitamin C is a colorless crystal, odourless, acidic taste. Soluble in water and ethanol. Stable in dry air , and its solution is not stable. As well as, vitamin C takes part in many metabolism procedures in the human body, helps decrease brittleness ...
  • Min. Order: 1
  • China Hebei Zhentian Food Addit Co., Ltd [Manufacturer]
  • Tel: 86-310-3031155
  • Address: No.136 Renmin Road Handan,HebeiChina
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50-81-7 Ascorbic acid

  • Ascorbic acid (also known as Vitamin C ) is a colorless crystal or a white or almost white, crystalline powder which discolor n exposure to air and moisture; odorless or almost odorless and tasted sour; easily soluble in water and a few partial solub...
  • China Zhengzhou Friend Biological Engineering Co., Ltd [Manufacturer, Trading Company, Agent]
  • Tel: 86-187-03633064
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  • Address: National Science Park Zhengzhou,HenanChina
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50-81-7 Vitamin C or Ascorbic Acid

  • CAS NO. 50-81-7 Competitive Price Natural And Healthy Ascorbic Acid ackaging & Delivery Packaging 25kg Carton box on IPPC pallet Plastic Pallets Polywood Pallet 1 FCL=20MT for ascorbic acid. Delivery Within 7-15 days after receive your prepayment or ...
  • FOB Price: USD4.00 - 5.00 /
  • China Zhengzhou Brightbest Industrial Co.,Limited [Manufacturer]
  • Tel: 86-371-85907991
  • Address: Mianfang Road Zhengzhou,HenanChina
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50-81-7 Factory Supply 99% High Purity L(+)-Ascorbic acid with Good Price

  • Product name:L(+)-Ascorbic acid CAS No.:50-81-7 Molecular formula:C6H8O6 Molecular weight:176.12 Product Specifications:Pharmacopoeial grade Purity:99%+ Email: dahuasales02@whdhwy.com WhatApp/WeChat:+86 15623424115
  • FOB Price: USD0 - 1 /
  • China Wuhan Dahua Weiye Pharmaceutical Devolepment Co.,Ltd [Manufacturer]
  • Tel: 86-027-59262863
  • Fax: 86-027-59262863
  • Address: Daijiashan 45#,Jiangan Economic Development Zone,Wuhan,Hubei,China Wuhan,HubeiChina
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50-81-7 Ascorbic Acid with high Vitamin C

  • scorbic Acid, CAS# 50-81-7, is common form of vitamin C, available as White or almost white crystal or crystalline powder. Ascorbic Acid, its isomer erythorbic acid and their salt (Sodium Ascorbate and sodium erythorbate) are widely used as antioxida...
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  • China Hubei A&S Trade Co.,Ltd. [Trading Company, Buying Office]
  • Tel: 86-728-3494577
  • Address: ROOM201,Guanggu Office Building,Mianjie Street, Xiantao,HubeiChina
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50-81-7 MF: C6H8O6 L(+)-Ascorbic acid

  • Basic Info Name:L(+)-Ascorbic acid Apearance:White Powder CAS:50-81-7 MF:C6H8O6 MW:176.12 Shipment:Air/Sea/EMS,DHL,TNT,UPS,Fedx Package:25kg/Cardboard Barrel Payment: Bank Transfer,Bitcoin,WU,MoneyGram Trademark:YuanChen Origin:China Price:fluctuated...
  • Min. Order: 1000
  • China Yuan Chen Co. Ltd [Manufacturer]
  • Tel: 86-027-50756092
  • Address: 496 Zhongshan Road Wuhan,HubeiChina
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50-81-7 China Factory Price L(+)-Ascorbic acid

  • Basic Info Name:L(+)-Ascorbic acid Apearance:White Powder CAS:50-81-7 MF:C6H8O6 MW:176.12 Shipment:Air/Sea/EMS,DHL,TNT,UPS,Fedx Package:25kg/Cardboard Barrel Payment: Bank Transfer,Bitcoin,WU,MoneyGram Trademark:YuanChen Origin:China Price:fluctuated...
  • Min. Order: 1000
  • China Yuanchen Co. [Manufacturer]
  • Tel: 86-027-50756092
  • Address: 496 ZhongShan Road Wuhan,HubeiChina
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50-81-7 CAS:50-81-7 L(+)-Ascorbic acid

  • Basic Info Name:L(+)-Ascorbic acid Apearance:White Powder CAS:50-81-7 MF:C6H8O6 MW:176.12 Shipment:Air/Sea/EMS,DHL,TNT,UPS,Fedx Package:25kg/Cardboard Barrel Payment: Bank Transfer,Bitcoin,WU,MoneyGram Trademark:YuanChen Origin:China Price:fluctuated...
  • Min. Order: 1000
  • China YuanChen Co. Ltd [Manufacturer]
  • Tel: 86-5075-6206
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  • Address: 496 ZhongShan Road. Wuhan,HubeiChina
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50-81-7 L(+)-Ascorbic acid

  • L(+)-Ascorbic acid Synonyms:3-Keto-L-gulofuranolactone;3-Oxo-L-gulofuranolactone;3-oxo-l-gulofuranolactone(enolform);Adenex;Allercorb;Antiscorbic vitamin;antiscorbicvitamin;Antiscorbutic vitamin CAS:50-81-7 MF:C6H8O6 MW:176.12 EINECS:200-066-2 Produc...
  • Min. Order: 10000
  • FOB Price: USD1 - 2 /
  • China Zhuhaishi Shuangbojie Technology Co.,Ltd. [Manufacturer]
  • Tel: 86-0756-8889897
  • Fax: 86-0756-8889806
  • Address: NO.101,Guofang Road,Gongbei,Zhuhai zhuhai,GuangdongChina
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50-81-7 L(+)-Ascorbic acid

  • Product Name: L(+)-Ascorbic acid Synonyms: 3-Keto-L-gulofuranolactone;3-Oxo-L-gulofuranolactone;3-oxo-l-gulofuranolactone(enolform);Adenex;Allercorb;Antiscorbic vitamin;antiscorbicvitamin;Antiscorbutic vitamin CAS: 50-81-7 EINECS: 200-066-2 MF: C6H8O...
  • China Zhuzhou Yuancheng Hezhong Technology Development Co., Ltd. [Manufacturer, Trading Company]
  • Tel: 86-731-22292056
  • Address: No. 388, Huangshan Rd, Tianyuan District, Zhuzhou City, Hunan Province, P.R.China. zhuzhou,HunanChina
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References of (2R)-2-[(1S)-1,2-dihydroxyethyl]-3,4-dihydroxy-2H-furan-5-one
Title: Ascorbic Acid
CAS Registry Number: 50-81-7
CAS Name: L-Ascorbic acid
Synonyms: vitamin C; 3-oxo-L-gulofuranolactone; L-threo-hex-2-enonic acid g-lactone; L-3-keto-threo-hexuronic acid lactone; L-xylo-ascorbic acid; antiscorbutic vitamin; cevitamic acid
Trademarks: Ascorbicap (Valeant); Ascorbin (Montavit); Ascorvit (Jenapharm); Cantan (Aventis); Cebion (Merck KGaA); Cecon (Abbott); Celaskon (Leciva); Celin (GSK); Cetebe (GSK); Cevalin (Lilly); Ce-Vi-Sol (BMS); Cevitan (Aventis); Cewin (Sanofi-Synthelabo); C-Vimin (AstraZeneca); Hicee (Takeda); Hybrin (Pfizer); Laroscorbine (Roche); Redoxon (Roche); Ribena (GSK); Vitacimin (Takeda); Vitacin (Towa Yakuhin); Vitascorbol (Aventis)
Molecular Formula: C6H8O6
Molecular Weight: 176.12
Percent Composition: C 40.92%, H 4.58%, O 54.51%
Literature References: Physiological antioxidant. Coenzyme for a number of hydroxylation reactions; required for collagen synthesis. Widely distributed in plants and animals. Most primates (including humans), guinea pigs, and some birds and fish cannot synthesize ascorbic acid. Inadequate intake results in deficiency syndromes such as scurvy. Dietary sources include citrus fruits, potatoes, peppers, broccoli, cabbage, and rose hips. First isolated from the adrenal cortex of ox and later from lemons and paprika (originally called hexuronic acid): A. Szent-Gy?rgyi, Biochem. J. 22, 1387 (1928); W. N. Haworth, A. Szent-Gy?rgyi, Nature 131, 24 (1933). Structure studies: R. W. Herbert et al., J. Chem. Soc. 1933, 1270. Synthesis: R. G. Ault et al., ibid. 1419; T. Reichstein et al., Helv. Chim. Acta 16, 561, 1019 (1933); 17, 311, 510 (1934). Review of discovery, structure and synthesis: E. L. Hirst, Fortschr. Chem. Org. Naturst. 2, 132-159 (1939). Crystal structure: J. Hvoself, Acta Chem. Scand. 18, 841 (1964). Review of syntheses: T. C. Crawford, S. A. Crawford, Adv. Carbohydr. Chem. 37, 79-155 (1980). HPLC determn in plasma: J. Lykkesfeldt et al., Anal. Biochem. 229, 329 (1995). Discussion of use in the treatment of the common cold: L. Pauling, Proc. Natl. Acad. Sci. USA 68, 2678 (1971); H. Hemil?, Scand. J. Infect. Dis. 26, 1 (1994). Clinical applications in immunology, lipid metabolism and cancer: Int. J. Vitam. Nutr. Res. 1982, Suppl. 23, 294 pp. Comprehensive description: I. A. Al-Meshal, M. M. A. Hassan, Anal. Profiles Drug Subs. 11, 45-78 (1982). Reviews: G. M. Jaffe in Kirk-Othmer Encyclopedia of Chemical Technology vol. 24 (John Wiley & Sons, New York, 3rd Ed., 1984) pp 8-40; "Vitamin C" in Vitamins, W. Friedrich, Ed. (Walter de Gruyter, Berlin, 1988) pp 929-1001. Review of pharmacology and clinical applications: M. Levine, N. Engl. J. Med. 314, 892-902 (1986); H. E. Sauberlich, Annu. Rev. Nutr. 14, 371-391 (1994).
Properties: Crystals (usually plates, sometimes needles, monoclinic system). Pleasant, sharp acidic taste. mp 190-192° (some dec). d 1.65. [a]D25 +20.5 to +21.5° (c = 1 in water); [a]D23 +48° (c = 1 in methanol). pH = 3 (5 mg/ml); pH = 2 (50 mg/ml); pK1 = 4.17; pK2 = 11.57. uv max at pH 2: 245 nm (E1%1cm 695); at pH 6.4: 265 nm (E1%1cm 940). Redox potential (first stage): E10 +0.166 V (pH 4). One gram dissolves in about 3 ml water, 30 ml alc, 50 ml abs alc, 100 ml glycerol, 20 ml propylene glycol. Soly in water: 80.0% at 100°; 40.0% at 45°. Insol in ether, chloroform, benzene, petr ether, oils, fats, fat solvents. Strong reducing agent. Stable to air when dry; aq solns are rapidly oxidized by air.
Melting point: mp 190-192° (some dec)
pKa: pK1 = 4.17; pK2 = 11.57
Optical Rotation: [a]D25 +20.5 to +21.5° (c = 1 in water); [a]D23 +48° (c = 1 in methanol)
Absorption maximum: uv max at pH 2: 245 nm (E1%1cm 695); at pH 6.4: 265 nm (E1%1cm 940)
Density: d 1.65
 
Derivative Type: Calcium hypophosphite
Synonyms: Asphocalcium
Trademarks: Calscorbat (Aerocid)
Molecular Formula: C6H9CaO8P
Molecular Weight: 280.18
Percent Composition: C 25.72%, H 3.24%, Ca 14.30%, O 45.68%, P 11.05%
 
Derivative Type: Calcium salt
CAS Registry Number: 5743-27-1
Synonyms: Calcium ascorbate
Molecular Formula: C12H14CaO12
Molecular Weight: 390.31
Percent Composition: C 36.93%, H 3.62%, Ca 10.27%, O 49.19%
Literature References: Prepn: Ruskin, Merrill, Science 105, 504 (1947).
Properties: Dihydrate, triclinic crystals, [a]D20 +95.6° (c = 2.4). Freely sol in water. Practically insol in methanol, ethanol.
Optical Rotation: [a]D20 +95.6° (c = 2.4)
 
Derivative Type: Sodium salt
CAS Registry Number: 134-03-2
Synonyms: Sodium ascorbate
Trademarks: Cenolate (Abbott); Xitix (Woelm)
Molecular Formula: C6H7NaO6
Molecular Weight: 198.11
Percent Composition: C 36.38%, H 3.56%, Na 11.60%, O 48.46%
Literature References: Prepn: Holland, US 2442005 (1948).
Properties: Minute crystals, dec 218°. [a]D20 +104.4°. Soly in water: 62 g/100 ml at 25°; 78 g/100 ml at 75°.
Optical Rotation: [a]D20 +104.4°
 
Use: As antimicrobial and antioxidant in foodstuffs.
Therap-Cat: Vitamin (antiscorbutic).
Therap-Cat-Vet: Vitamin (antiscorbutic).
Keywords: Vitamin/Vitamin Source; Vitamin C.