Home > Name List By other > (2S)-2-amino-4-methylpentanoic acid

CAS No 61-90-5 , (2S)-2-amino-4-methylpentanoic acid

  • Name: (2S)-2-amino-4-methylpentanoic acid
  • Synonyms: L-leucine; (S)-Leucine; (S)-2-Amino-4-methylpentanoic acid; Leucinum; 61-90-5; leucine; (S)-2-Amino-4-methylvaleric acid; L-alpha-Aminoisocaproic acid;(2S)-2-amino-4-methylpentanoic acid;
  • CAS Registry Number:
  • Melting Point: 286-288 ºC
  • Density: 1,293 g/cm3
  • Alpha: 15.4 º (C=4, 6N HCL)
  • Water Solubility: 22.4 G/L (20 C)
  • Safety Statements: 24/25
  • EINECS: 200-522-0
  • Molecular Weight: 131.17292
  • InchiKey: ROHFNLRQFUQHCH-YFKPBYRVSA-N
  • InChI: InChI=1S/C6H13NO2/c1-4(2)3-5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)/t5-/m0/s1
  • Risk Statements: S24/25
  • Molecular Formula: C6H13NO2
  • Molecular Structure:CAS No:61-90-5 (2S)-2-amino-4-methylpentanoic acid
Search by region :

Select to

61-90-5 L-Leucine

  • 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 ,ZheJiangChina
Contact Supplier

61-90-5 L-Leucine

  • China Boronsyn Co.,Ltd [Manufacturer]
  • Tel: +86-21-58407925
  • Fax: +86-21-58408291
  • Address: 1213 JunMin Road,Pudong,China ,China
Contact Supplier

61-90-5 L-Leucine

  • China Ningbo Inno Pharmchem Co., Ltd. [Manufacturers]
  • Tel: +86-(574)-87319282
  • Fax: +86-(574)-56877908
  • Address: 5F, Building 4, 1035 Guangxian Rd., Ningbo Hi-Tech Park, Ningbo, Zhejiang 315040, Ningbo,ZhejiangChina
Contact Supplier

61-90-5 L-leucine

  • English name: L-leucine; Purity: 99%; CAS: 61-90-5; Product standard: FCC; Packaging: 25KG/drum, made of full paper; Company: Hongya Yaxing Biotechnology Co.,Ltd; Appearance: white crystalline powder; Function: Used as nutritional supplements and foo...
  • China Hongya Yaxing Biotechnology Co.,Ltd [Manufacturer]
  • Tel: 86-28-37496355
  • Fax: 86-28-37496355
  • Address: Jiangjun Industrial Area Hongya ,SichuanChina

61-90-5 L-LEUCINE

  • United States Aceto Corp. [Manufacturer]
  • Tel: 516-627-6000
  • Fax: 516-627-6093
  • Address: One Hollow Lane
    Lake Success, NY 11042-1215 ,United States
Contact Supplier

61-90-5 L-Leucine

  • China Goly Chemical Co., Ltd. [Manufacturers]
  • Tel: +86-(632)-6163187
  • Fax: +86-(632)-5100028
  • Address: Room No.6.Building21 LongXingBeiLi,ShiZhong, ZaoZhua, ShanDong 277102, ZaoZhuang,ShanDongChina
Contact Supplier

61-90-5 L-Leucine

  • Hong kong ADVANCED TECH. & IND. CO., LTD. [Distributor/Wholesaler]
  • Tel: 86-23902293
  • Fax: 86-27898314
  • Address: UNIT B, 1/F, CHEONG SHING IND. BLDG., 17 WALNUT ST., TAI KOK TSUI, KLN, HONG KONG Hong Kong,nilHong kong
Contact Supplier

61-90-5 L-Leucine

  • China GL Biochem (Shanghai) Ltd. [Distributor/Wholesaler]
  • Tel: +86-(21)-61263306
  • Fax: +86-(21)-61263300
  • Address: 519 Zi Yue Road, Shanghai, China 200241, ShangHai,ShangHaiChina
Contact Supplier

61-90-5 L-Leucine

Contact Supplier

61-90-5 L-Leucine

  • China Hebei Fulong Import & Export Co., Ltd. [Manufacturers]
  • Tel: +86-311-87795612
  • Fax: 86-311-87709298
  • Address: 15A19 ZHONGYUAN BUILDING, 368 YOUYI NORTH STREET, SHIJIAZHUANG 050070, HEBEI, CHINA Shijiazhuang,HebeiChina
Contact Supplier

Select to

References of (2S)-2-amino-4-methylpentanoic acid
Title: Leucine
CAS Registry Number: 61-90-5
CAS Name: L-Leucine
Synonyms: Leu; L; 2-amino-4-methylvaleric acid; a-aminoisocaproic acid; (S)-2-amino-4-methylpentanoic acid
Molecular Formula: C6H13NO2
Molecular Weight: 131.17
Percent Composition: C 54.94%, H 9.99%, N 10.68%, O 24.39%
Literature References: An essential amino acid for human development. Discovery of leucine is attributed to Proust in 1819 who reported its separation from fermented milk curds. 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. 2075-2096, passim. Chromatographic determn of specific activity in biological fluids: E. P. Donahue et al., J. Chromatogr. 571, 29 (1991); separation of isotopes: P. Q. Baumann et al., ibid. 573, 11 (1992). Metabolism in humans: K. J. Motil et al., Metabolism 30, 783 (1981); in children receiving parenteral nutrition: O. Goulet et al., Am. J. Physiol. 265, E540 (1993). Kinetics modelling in humans: C. Cobelli et al., ibid. 261, E539 (1991).
Properties: White glistening hexagonal plates from aq alc. d18 1.293. Sublimes at 145-148°. Dec 293-295° (rapid heating, sealed tube). [M]D +21.0° (5N HCl); [M]D +29.5° (glacial acetic acid). [a]D25 -10.8° (c = 2.2); [a]D26 +15.1° in 6N HCl (38 mols HCl per mol leucine); [a]D20 +7.6° in 3N NaOH (30 mols NaOH per mol leucine). Rf value 0.79. Soly in water (g/l): 22.7 (0°); 24.26 (25°); 28.87 (50°); 38.23 (75°); 56.38 (100°); in 99% alcohol: 0.72; in acetic acid: 10.9. Insol in ether.
Optical Rotation: [a]D25 -10.8° (c = 2.2); [a]D26 +15.1° in 6N HCl (38 mols HCl per mol leucine); [a]D20 +7.6° in 3N NaOH (30 mols NaOH per mol leucine)
Density: d18 1.293
 
Derivative Type: DL-Form
Properties: Leaflets fom water. Sweet taste. Dec 332° (also reported as 290°). Sublimes. pK1 2.36; pK2 9.60. Soly in water (g/l): 7.97 (0°); 9.91 (25°); 14.06 (50°); 22.76 (75°); 42.06 (100°); in 90% alcohol: 1.3. Insol in ether.
pKa: pK1 2.36; pK2 9.60
 
Derivative Type: Hydrochloride
Molecular Formula: C6H13NO2.HCl
Molecular Weight: 167.63
Percent Composition: C 42.99%, H 8.42%, N 8.36%, O 19.09%, Cl 21.15%
Properties: Crystals. Freely sol in water.
 
Use: Nutrient.