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CAS No 72-19-5 , L-Threonine

  • Name: L-Threonine
  • Synonyms: (2S,3R)-2-amino-3-hydroxy-butanoic acid;L-Threonine (9CI);Valine,3-hydroxy-;Threonine, L-;Threonine, L- (8CI);Threonine [USAN:INN];L-Threonine;(2S,3S)-2-azaniumyl-3-hydroxy-butanoate;L-thr;L-Threonine(Feed Grade);Threoninum [Latin];L-Threonine Aji97;36676-50-3;Threonine (VAN);L-(-)-Threonine;2-Amino-3-hydroxybutanoic acid, (R-(R*,S*))-;thre;2-amino-3-hydroxy-butanoic acid;Butanoic acid, 2-amino-3-hydroxy-, (R-(R*,S*))-;SORT:L-Threonine(Feed Grade);L-Threonin;48: PN: WO2004076659 FIGURE: 7 claimed sequence;L-THREONINE FOR BIOCHEMISTRY;L-alpha-Amino-beta-hydroxybutyric acid;Thr;L-Threonine (JP14);L- Threonine;(2S,3R)-2-azaniumyl-3-hydroxy-butanoate;H-Thr-OH;L-Thr-OH;THREONINE (L);Butanoic acid, 2-amino-3-hydroxy-, [R-(R*,S*)]-;Threonine (USP);1/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8;THREONINE, (L);(2S,3R)-2-Amino-3-hydroxybutyric acid;[R-(R*,S*)]-2-Amino-3-hydroxybutanoic acid;Treonina [Spanish];(2R,3R)-2-amino-3-hydroxy-butanoic acid;L-2-Amino-3-hydroxybutyric acid;2-Amino-3-hydroxybutyric acid;(S)-Threonine;(2S,3R)-2-amino-3-hydroxybutanoic acid;Threonine;Threonin;(2S)-threonine;13095-55-1;
  • CAS Registry Number:
  • Density: 1.307 g/cm3
  • Alpha: -28.4 º (C=6, H2O)
  • Water Solubility: 90 G/L (20 ºC)
  • Safety Statements: 24/25-37/39-26
  • Hazard Symbols: Xi: Irritant;
  • EINECS: 200-774-1
  • Molecular Weight: 119.1192
  • InChI: InChI=1S/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8)/t2-,3+/m0/s1
  • Risk Statements: 36/37/38
  • Molecular Formula: C4H9NO3
  • Molecular Structure:CAS No:72-19-5 L-Threonine
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72-19-5 L-Threonine (4-13C, 97%; 2,3-D2, 98%)

  • Creative Proteomics provides a full range of drug development services, including Molecular Biology, Biochemistry, Systems Biology, Organic Chemistry, Genomics, Bioinformatics, Structural Biology, Preclinical and Clinical studies. Please contact us t...
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72-19-5 L-Threonine (13C4, 97-99%; D5, 97-99%; 15N, 97-99%)

  • Creative Proteomics provides a full range of drug development services, including Molecular Biology, Biochemistry, Systems Biology, Organic Chemistry, Genomics, Bioinformatics, Structural Biology, Preclinical and Clinical studies. Please contact us t...
  • United States Creative Proteomics [Manufacturer, Trading Company]
  • Tel: 1-631-6197922
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  • Address: 45-1 Ramsey Road, Shirley New York,New YorkUnited States
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72-19-5 L-Threonine

  • Product Name: L-Threonine Chemical Name: (2S,3R)-2-Amino-3 -hydroxybutanoic Acid Molecular Formula: C4H9NO3 Molecular Weight: 119.12 Cas No: 72-19-5
  • Min. Order: 1
  • China Premium Ingredient Co.,Ltd [Manufacturer, Trading Company, Distributor/Wholesaler]
  • Tel: 86-510-86995770
  • Fax: 86-510-86993298
  • Address: Shanguan Jiangyin,JiangsuChina
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72-19-5 Threonine

  • Product name: L-Threonine Grade: food grade, feed grade Chemical formula:C4H9NO3 Molecular Weight:119.12 Percent Nitrogen:11.50% Description:Yellowish-white, crystal powder Solubility in H2O: 9.76 g/100 g water at 20oC Purity :98.5% (Min) Bulk Densit...
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  • China Premium Ingredient Co.,Ltd [Manufacturer, Trading Company, Distributor/Wholesaler]
  • Tel: 86-510-86995770
  • Fax: 86-510-86993298
  • Address: Shanguan Jiangyin,JiangsuChina
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72-19-5 L-Threonine

  • Product Name: L-Threonine CAS NO.: 72-19-5 Molecular Formula: C4H9NO3 Molecular Weight: 119.12 Properties: white rhombic or crystalline powder. odorless, slightly sweet taste. Melt at 253℃(degrees Celsius). Soluble in water, 25°C(degrees Celsius) so...
  • China DaXingAnLing Zhongbei Northland Bio-Chem Industry [Manufacturer]
  • Tel: 86-452-6197119
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  • Address: 5F, C Liandalijing Bulding,No 259 Xinjiang qiqihar,HeilongjiangChina
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72-19-5 L-Threonine

  • 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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72-19-5 L-Threonine

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72-19-5 L-Threonine

  • United States HBCChem, Inc. [Manufacturers]
  • Tel: +1-510-219-6317
  • Fax: +1-510-675-0318
  • Address: Union City,CaliforniaUnited States
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72-19-5 L-Threonine

  • China Fast Pharm Co.,Ltd [Manufacturers]
  • Tel: 8602133538380
  • Fax: 86-021-32082820
  • Address: No.17#-6D. 830 Lane,Maotai Road Shanghai,SH200336,China Shanghai,ShanghaiChina
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72-19-5 Threonines

  • 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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References of L-Threonine
Title: Threonine
CAS Registry Number: 72-19-5
CAS Name: L-Threonine
Synonyms: Thr; T; (2S,3R)-2-amino-3-hydroxybutyric acid; a-amino-b-hydroxybutyric acid
Molecular Formula: C4H9NO3
Molecular Weight: 119.12
Percent Composition: C 40.33%, H 7.62%, N 11.76%, O 40.29%
Literature References: An essential amino acid for human development; last of the common amino acids to be discovered. Identified in oat protein: S. B. Schryver, H. W. Buston, Proc. Roy. Soc. London 99B, 476 (1925/6); isolated from blood fibrin: W. C. Rose, J. Biol. Chem. 109, 77 (1935). Structure: C. E. Meyer, W. C. Rose, ibid. 115, 721 (1936). Early chemistry and biochemistry: Amino Acids and Proteins, D. M. Greenberg, Ed. (Charles C. Thomas, Springfield, IL, 1951) 950 pp., passim; J. P. Greenstein, M. Winitz, Chemistry of the Amino Acids vols 1-3 (John Wiley and Sons, Inc., New York, 1961) pp. 2238-2258, passim. GC/MS metabolism study: O. Ballevre et al., Anal. Biochem. 193, 212 (1991). Clinical evaluation in amyotrophic lateral sclerosis: J. B. Roufs, Med. Hypotheses 34, 20 (1991); O. Blin et al., J. Neurol. 239, 79 (1992). Review of microbial production: Daoust, Dev. Ind. Microbiol. 7, 41 (1966); R. Bhattacharyya et al., Hind. Antibiot. Bull. 30, 54-65 (1988). Review of biosynthesis: G. N. Cohen in Amino Acids, Biotechnol. Ser. 3, 147-171 (1983); of regulation of biosynthesis: G. Galili, Plant Cell 7, 899-906 (1995).
Properties: Crystals, dec 255-257°. [a]D26 -28.3° (c = 1.09). pK1¢ 2.63; pK2¢ 10.43. Freely sol in water. Insol in common neutral solvents.
pKa: pK1¢ 2.63; pK2¢ 10.43
Optical Rotation: [a]D26 -28.3° (c = 1.09)
 
Derivative Type: DL-Form hemihydrate
Properties: Orthorhombic crystals, dec 229-230°.