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CAS No 63-68-3 , (2S)-2-amino-4-methylsulfanylbutanoic acid Search by region : China

  • Name: (2S)-2-amino-4-methylsulfanylbutanoic acid
  • Synonyms: methionine;L-methionine; L-Methioninum; S-Methionine; Methilanin; Cymethion; L-(-)-Methionine; Liquimeth; (L)-Methionine; h-Met-oh;(2S)-2-amino-4-methylsulfanylbutanoic acid;
  • CAS Registry Number:
  • Melting Point: 276-279 ºC (DEC.)
  • Density: 1,34g/cm
  • Alpha: 23.25 º (C=2, 6N HCL)
  • Safety Statements: 24/25
  • HS Code: 29304010
  • EINECS: 200-562-9
  • Molecular Weight: 149.21134
  • InchiKey: FFEARJCKVFRZRR-BYPYZUCNSA-N
  • InChI: InChI=1S/C5H11NO2S/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1
  • Risk Statements: S24/25
  • Molecular Formula: C5H11NO2S
  • Molecular Structure:CAS No:63-68-3 (2S)-2-amino-4-methylsulfanylbutanoic acid

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63-68-3 L-Methionine Manufacturer

  • L-Methionine Standard:AJI92 Item Specifications Appearance Whitecrystalsorcrystallinepowder Assay,% (on dried basis) 99.0%~100.5% a state of solution ≥98% Specifc Rotation +23.0—+24.5 pH value (2% w/v solution) 5.6~6.1 Heavy metals (as Pb),% ≤0.0...
  • China Shijiazhuang Haitian Amino Acid Co., Ltd. [Manufacturer, Trading Company]
  • Tel: 86-311-88908111
  • Address: East of the Road 150m of Shi-Huang Freeway Entrance, Gaocheng District, Shijiazhuang City, Hebei P.R. China Shijiazhuang,HebeiChina
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63-68-3 L-Methionine

  • Product Name: L-Methionine CAS NO.: 63-68-3 Molecular Formula: C5H11NO2S Molecular Weight: 149.21 Properties: Colorless or white lustrous flaky crystal or white crystalline powder. Has slight odor and bitter taste. M.P.: 280-281 degree(decomposed). S...
  • China DaXingAnLing Zhongbei Northland Bio-Chem Industry [Manufacturer]
  • Tel: 86-452-6197119
  • Fax: --
  • Address: 5F, C Liandalijing Bulding,No 259 Xinjiang qiqihar,HeilongjiangChina
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63-68-3 L-Methionine

  • Quality: AJI92,USP White crystals or crystalline powder
  • China Aqua Wyoming Inc [Trading Company]
  • Tel: 86-0579-82899564
  • Address: Zhaohui Road hangzhou,ZhejiangChina
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63-68-3 L-Methionine

  • China Taiyuan RHF CO., ltd. [Manufacturers]
  • Tel: 0351-7436719
  • Fax: +86-351-7436719
  • Address: Shuangta South Alley 46,2-1, YingZe Area,Taiyuan, ShanXi null,ShanXiChina
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63-68-3 L-Methionine

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63-68-3 L-Methionine

  • 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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63-68-3 L-Methionine

  • 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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63-68-3 L-Methionine

  • China YiPeng Chemical [Manufacturers]
  • Tel: 571 85376369
  • Fax: 571 88233092
  • Address: Building 4,High-tech Industrial Park,No. 588 Feijiatang Road,Xiacheng District, Hangzhou, China null,ZheJiangChina
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63-68-3 2-Amino-4-(Methylthio)Butyric Acid

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63-68-3 L-Methionine

  • China Boronsyn Co.,Ltd [Manufacturer]
  • Tel: +86-21-58407925
  • Fax: +86-21-58408291
  • Address: 1213 JunMin Road,Pudong,China null,nullChina
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References of (2S)-2-amino-4-methylsulfanylbutanoic acid
Title: Methionine
CAS Registry Number: 63-68-3
CAS Name: L-Methionine
Synonyms: Met; M; 2-amino-4-(methylthio)butyric acid; a-amino-g-methylmercaptobutyric acid; (S)-2-amino-4-(methylthio)butanoic acid; g-methylthio-a-aminobutyric acid
Trademarks: Acimethin (Gry)
Molecular Formula: C5H11NO2S
Molecular Weight: 149.21
Percent Composition: C 40.25%, H 7.43%, N 9.39%, O 21.45%, S 21.49%
Literature References: Essential amino acid for human development. Universal translation start signal although usually missing from mature protein. Isoln from casein: J. H. Mueller, Proc. Soc. Exp. Biol. Med. 19, 161 (1922). 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. 2125-2155, passim. Determn and distribution in non-protein fractions: J. Giovanelli, S. H. Mudd, J. Biochem. Biophys. Methods 11, 1 (1985). GC-MS determn in biological fluids: S. P. Stabler et al., Anal. Biochem. 162, 185 (1987). Evaluation as tracer in cancer imaging in mice: R. Kubota, J. Nucl. Med. 36, 484 (1995). Clinical evaluation in acetaminophen overdose: A. N. Hamlyn et al., J. Int. Med. Res. 9, 226 (1981). Clinical use as radiolabel in hyperparathyroidism: P. Hellman et al., Surgery 116, 974 (1994). Review of metabolism and clinical significance in man: L. D. Fleisher, G. E. Gaull, Clin. Endocrinol. Metab. 3, 37-55 (1974); and in carcinogenesis: T. L. Gatton-Umphress, Hosp. Pract. 28, 83-90 (1993). Review of toxicity: N. J. Benevenga, J. Agric. Food Chem. 22, 2-9 (1974). Review of biosynthesis: I. G. Old et al., Prog. Biophys. Mol. Biol. 56, 145-185 (1991). Review as translation start signal: T. Meinnel et al., Biochimie 75, 1061-1075 (1993).
Properties: Minute hexagonal plates from dil alc, mp 280-282° (dec, sealed capillary). [a]D25 -8.11° (c = 0.8). [a]D20 +23.40° (c = 5.0 in 3N HCl). Sol in water, but the crystals are somewhat water-repellent at first. Sol in warm, dil alcohol. Insol in abs alcohol, ether, petr ether, benzene, acetone.
Melting point: mp 280-282° (dec, sealed capillary)
Optical Rotation: [a]D25 -8.11° (c = 0.8); [a]D20 +23.40° (c = 5.0 in 3N HCl)
 
Derivative Type: D-Form
CAS Registry Number: 348-67-4
Literature References: Converted by deamination, followed by transamination with resultant inversion to the L-form. Comparative study with L-form of metabolism in plants: M. Pokorny et al., Phytochemistry 9, 2175 (1970). Evaluation in parenteral nutrition: K J. Printen et al., Am. J. Clin. Nutr. 32, 1200 (1979). Review: L. D. Stegink, D-Amino Acids in Clin. Nutr. Update: Amino Acids H. L. Greene et al., Eds. (American Medical Association, Chicago, IL, 1977) pp 198-206.
Properties: [a]D25 +8.12° (c = 0.8). [a]D25 -21.18° (c = 0.8 in 0.2N HCl).
Optical Rotation: [a]D25 +8.12° (c = 0.8); [a]D25 -21.18° (c = 0.8 in 0.2N HCl)
 
Derivative Type: DL-Form
CAS Registry Number: 59-51-8
Synonyms: Racemethionine
Trademarks: Banthionine (Banyu); Dyprin (Lincoln); Lobamine (Lobica); Metione (Lobica); Pedameth (Forest); Urimeth (North Am. Pharm.)
Properties: Platelets from alc, mp 281° (decompn). d 1.340. pK1 2.28; pK2 9.21. pH of 1% aq soln 5.6-6.1. Rf value 0.77. Soly in water (g/l) at 0°: 18.18; at 25°: 33.81; at 50°: 60.70; at 75°: 105.2; at 100°: 176.0. Sol in dil acids, alkalies. Very slightly sol in 95% alcohol. Insol in ether.
Melting point: mp 281° (decompn)
pKa: pK1 2.28; pK2 9.21
Density: d 1.340
 
Therap-Cat: Hepatoprotectant; antidote (acetaminophen poisoning); urinary acidifier.
Therap-Cat-Vet: Nutritional supplement; urinary acidifier.
Keywords: Antidote (Acetaminophen Poisoning); Hepatoprotectant; Acidifier.