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CAS No 87-69-4 , (2R,3R)-2,3-dihydroxybutanedioic acid

  • Name: (2R,3R)-2,3-dihydroxybutanedioic acid
  • Synonyms: L-threaric acid; 87-69-4;(2R,3R)-2,3-dihydroxybutanedioic acid; (+)-L-Tartaric acid; L-(+)-Tartaric acid; (+)-Tartaric acid;L-tartaric acid; L(+)-Tartaric acid; tartaric acid;
  • CAS Registry Number:
  • Melting Point: 168-172 ºC
  • Flash Point: 210 ºC
  • Density: 1.76
  • Refractive index: 12.5 ° (C=5, H2O)
  • Alpha: 12 º (C=20, H2O)
  • Water Solubility: 1390 G/L (20 ºC)
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • HS Code: 29181200
  • Flash Point: 210 ºC
  • EINECS: 201-766-0
  • Molecular Weight: 150.08684
  • InchiKey: FEWJPZIEWOKRBE-JCYAYHJZSA-N
  • InChI: InChI=1S/C4H6O6/c5-1(3(7)8)2(6)4(9)10/h1-2,5-6H,(H,7,8)(H,9,10)/t1-,
    2-/m1/s1
  • Risk Statements: S26;S37/39
  • Molecular Formula: C4H6O6
  • Molecular Structure:CAS No:87-69-4 (2R,3R)-2,3-dihydroxybutanedioic acid
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87-69-4 L(+)-Tartaric acid

  • L(+)-Tartaric acid CAS No.: 87-69-4 Assay: 99.5~101.0% Appearance: white or type white crystalline powders Application: tobacco taste corrective Package:25kgs in net in Kraft/Plastic Bag lined with PE bag Storage: Kept air tightly in a light-proof, d...
  • China Hubei Yuancheng Saichuang Technology Co.Ltd [Manufacturer]
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  • Address: Zhongshan Wuhan,HubeiChina
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87-69-4 L(+) Tartaric Acid

  • L(+) Tartaric Acid CAS: 87-69-4 EINECS: 201-766-0 MF: C4H6O6 MP: 168-172°C Appearance: Colorless crystal or white crystalline Usage: Acidity Regulators,Antioxidants,Emulsifiers,Enzyme Preparations Package: :25kg/drum Item Index Content 99.5~101.0 Spe...
  • Min. Order: 3000
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  • China Wuhan Yuancheng Gongchuang Technology Co.,Ltd [Manufacturer]
  • Tel: 86-027-50755966
  • Address: No.496,Zhongshan Road,Wuchang District, Wuhan Wuhan,HubeiChina
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87-69-4 L(+) Tartaric Acid

  • L(+) Tartaric Acid CAS: 87-69-4 EINECS: 201-766-0 MF: C4H6O6 MP: 168-172°C Appearance: Colorless crystal or white crystalline Usage: Acidity Regulators,Antioxidants,Emulsifiers,Enzyme Preparations Package: :25kg/drum Item Index Content 99.5~101.0 Spe...
  • China Wuhan Yuancheng Gongchuang Technology Development Co.,Ltd. [Manufacturer, Trading Company]
  • Tel: 86-27-50756096
  • Fax: 86-27-68886696
  • Address: No.496,Zhongshan Road, Wuhan, Hubei, China Wuhan,HubeiChina
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  • 87-69-4 L(+) Tartaric Acid

    • CAS: 87-69-4 EINECS: 201-766-0 MF: C4H6O6 MP: 168-172°C Appearance: Colorless crystal or white crystalline Usage: Acidity Regulators,Antioxidants,Emulsifiers,Enzyme Preparations Package: :25kg/drum Item Index Content 99.5~101.0 Specific rotation[a]D2...
    • Min. Order: 5000
    • China Hubei Yuancheng Saichuang Technology Co., Ltd. [Manufacturer, Trading Company]
    • Tel: 86-027-50756244
    • Fax: --
    • Address: 496# Zhongshan Road,Wuchang, Wuhan,Hubei,China wuhan ,HubeiChina
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    87-69-4 Food Additives L(+)-Tartaric Acid CAS 87-69-4

    • Quick Detail: Product Name:L(+)-Tartaric acid EINECS: 201-766-0 CAS Registry Number: 87-69-4 Synonyms: Butanedioicacid, 2,3-dihydroxy- (2R,3R)-; Butanedioicacid, 2,3-dihydroxy- [R-(R*,R*)]-; Tartaric acid, L-(+)- (8CI); (+)-(2R,3R)-Tartaric acid; (+)...
    • China Wuhan Hezhong Bio-Chemical Manufacture Co., Ltd [Manufacturer, Trading Company]
    • Tel: 86-27-50756226
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    • Address: No. 496, Zhongshan Road, Wuchang District, Wuhan 430064, China. Wuhan,HubeiChina
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    87-69-4 L-Tartaric acid

    • Price L-Tartaric acid ITEM SPECIFICATION TEST RESULTS Assay 99.7%~100.5% 100.0% Appearance White crystal or powder White crystal Specific rotation[a]D20°C +12°~13 ° +12.6° Residue on ignition ≤0.05% 0.02% Loss on drying ≤0.5% 0.09% Oxalate(C2O4) te...
    • China Purestar Chem Enterprise Co.,Ltd [Manufacturer, Trading Company]
    • Tel: 86-572-2157374
    • Address: No.235,Huanchengdong Road Huzhou,ZhejiangChina
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    87-69-4 L(+)-Tartaric acid

    • L(+)-Tartaric acid Product Name: L(+)-Tartaric acid Synonyms: 1,2-Dihydroxyethane-1,2-dicarboxylic acid;1,2-dihydroxyethane-1,2-dicarboxylicacid;2,3-Dihydrosuccinic acid;2,3-dihydrosuccinicacid;2,3-dihydroxy-[R-(R*,R*)]-Butanedioicacid;2,3-dihydroxy-...
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    • China Wuhan Yuancheng Pharmaceutical Company [Manufacturer]
    • Tel: 86-027-88081007
    • Address: No.496,Zhongshan Road, Wuhan, Hubei, China wuhan,HubeiChina
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    87-69-4 L(+)-Tartaric acid

    • China Taiyuan RHF CO., ltd. [Manufacturers]
    • Tel: 0351-7436719
    • Fax: +86-351-7436719
    • Address: Shuangta South Alley 46,2-1, YingZe Area,Taiyuan, ShanXi ,ShanXiChina
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    87-69-4 L(+)-Tartaric acid

    • China Shanghai Hanhong Chemical Co., Ltd. [, Manufacturer, Trading Company, Agent]
    • Tel: +86-(21)-64762736, 64531573
    • Fax: +86-(21)-54291107
    • Address: 206-209, NO.1 Building , NO.245,Jiachuan Road, Xuhui District, Shanghai, Xuhui District,ShanghaiChina
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    87-69-4 L(+)-Tartaric acid

    • China Fast Pharm Co.,Ltd [Manufacturers]
    • Tel: 8602133538380
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    • Address: No.17#-6D. 830 Lane,Maotai Road Shanghai,SH200336,China Shanghai,ShanghaiChina
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    References of (2R,3R)-2,3-dihydroxybutanedioic acid
    Title: L-Tartaric Acid
    CAS Registry Number: 87-69-4
    CAS Name: (2R,3R)-2,3-Dihydroxybutanedioic acid
    Synonyms: ordinary tartaric acid; natural tartaric acid; d-tartaric acid; (+)-tartaric acid; dextrotartaric acid; L-2,3-dihydroxybutanedioic acid; d-a,b-dihydroxysuccinic acid; Weins?ure (German); Weinsteins?ure (German)
    Molecular Formula: C4H6O6
    Molecular Weight: 150.09
    Percent Composition: C 32.01%, H 4.03%, O 63.96%
    Literature References: Dextrorotatory tartaric acid having a levo configuration. Widely distributed in nature, classified as a fruit acid. Occurs in many fruits, free and combined with potassium, calcium or magnesium. Observed in antiquity as the acid potassium salt found deposited as a fine crystalline crust during fermentation of grape juice or tamarind juice and termed faecula (little yeast) by the Romans. The derivation from Tartarus is of medieval, alchemical origin. In modern processes the acid potassium tartrate obtained during wine-making is first converted to calcium tartrate which is then hydrolyzed to tartaric acid and calcium sulfate: Metzner, Chem. Eng. Prog. 43, 160 (1947); several modifications, e.g., IT 490221 (1954 to Procedimenti Chimici), C.A. 50, 11607c (1956). Extraction from tamarind pulp in about 10% yield: IN 52167 (1955), C.A. 50, 5249g (1956). Synthesis by hydroxylation of maleic acid: Church, Blumberg, Ind. Eng. Chem. 43, 1780 (1951). Practically all of the L-tartaric acid sold today is a byproduct of the wine industry. Monograph: U. Roux, La Grande Industrie des Acides Organiques (Dounod, Paris, 1939). Example of a modern process: Dabul, US 3114770 (1963 to Orandi & Massera).
    Properties: Monoclinic sphenoidal prisms, mp 168-170°. Stable to air and light. Strong acid taste. Refreshing when in dil aq soln. d420 1.7598. Odor of burnt sugar when heated to mp. [a]D20 +12.0° (c = 20 in H2O). Strong organic acid. At 25° pKa1 2.98; pKa2 4.34. pH of 0.1N soln: 2.2. Heat of combustion: -275.1 kcal/mol. Specific heat: 0.288 cal/g/°C at 21 to 51°; 0.296 at 0 to 99.6°. Dielectric constant 36.0 for 1200 cm waves. Freely sol in water. d415 of aq solns (w/w at 15°): 1% 1.0045; 10% 1.0469; 20% 1.0969; 30% 1.1505; 40% 1.2078; 50% 1.2696. Max soly in water in g/100 ml at various temps: 0° = 115; 10° = 126; 20° = 139; 30° = 156; 40° = 176; 50° = 195; 60° = 217; 70° = 244; 80° = 273; 90° = 307; 100° = 343. One gram dissolves in 0.75 ml water at room temp, in 0.5 ml boiling water, 1.7 ml methanol, 3 ml ethanol, 10.5 ml propanol, 250 ml ether. Also sol in glycerol. Insol in chloroform.
    Melting point: mp 168-170°
    pKa: pKa1 2.98; pKa2 4.34
    Optical Rotation: [a]D20 +12.0° (c = 20 in H2O)
    Density: d420 1.7598; d415 of aq solns (w/w at 15°): 1% 1.0045; 10% 1.0469; 20% 1.0969; 30% 1.1505; 40% 1.2078; 50% 1.2696
    CAUTION: Can cause local irritation. See Patty's Industrial Hygiene and Toxicology vol. 2C, G. D. Clayton, F. E. Clayton, Eds. (Wiley-Interscience, New York, 3rd ed., 1982) p 4937, 4943-4945.
    Use: In the soft drink industry, confectionery products, bakery products, gelatin desserts, as an acidulant. In photography, tanning, ceramics, manuf tartrates. The common commercial esters are the diethyl and dibutyl derivs used for lacquers and in textile printing. Pharmaceutic aid (buffering agent).