Home > Name List By other > (2S)-2-amino-3-methylbutanoic acid

CAS No 72-18-4 , (2S)-2-amino-3-methylbutanoic acid

  • Name: (2S)-2-amino-3-methylbutanoic acid
  • Synonyms: 2-Amino-3-methylbutyric acid; 2-Amino-3-methylbutanoic acid;(2S)-2-amino-3-methylbutanoic acid; (S)-2-Amino-3-methylbutyric acid; valine; (S)-Valine;L-valine; 72-18-4;
  • CAS Registry Number:
  • Melting Point: 315 ºC
  • Density: 1.23
  • Refractive index: 28 ° (C=8, HCl)
  • Alpha: 28 º (C=8, 6N HCL)
  • Water Solubility: 85 G/L (20 ºC)
  • Safety Statements: 24/25-36-22
  • Hazard Symbols: Xn: Harmful;
  • EINECS: 200-773-6
  • Molecular Weight: 117.14634
  • InchiKey: KZSNJWFQEVHDMF-BYPYZUCNSA-N
  • InChI: InChI=1S/C5H11NO2/c1-3(2)4(6)5(7)8/h3-4H,6H2,1-2H3,(H,7,8)/t4-/m0/s1
  • Risk Statements: S24/25:Avoidcontactwithskinandeyes.;
  • Molecular Formula: C5H11NO2
  • Molecular Structure:CAS No:72-18-4 (2S)-2-amino-3-methylbutanoic acid

Related products

Search by region :

Select to

72-18-4 L-VALINE

Contact Supplier

72-18-4 L-Valine

  • China Unitechem CO., Ltd null
  • Tel: 86-22-66218397
  • Fax: +86-22-66218322
  • Address: 2-505, Guoxin Bldg A, The 2ND Street, TEDA, Tianjin, China null,nullChina
Contact Supplier

72-18-4 L-Valine

Contact Supplier

72-18-4 L-Valine

  • China Langene Bio-science Co., Ltd. [Manufacturers]
  • Tel: +86-29-8833 5989
  • Fax: +86-29-8833 5997
  • Address: C606,Genzelle Valley, Pioneering R&D Pack,No69,Jinye Road,Xi'an Hign Tech Zone 710077,china Xi'an,ShaanxiChina
Contact Supplier

72-18-4 L-Valine

  • China Glorient (Xiamen) Impex Co., Ltd. [Manufacturers]
  • Tel: +86-(592)-559-7140
  • Fax: +86-(592)-559-7141
  • Address: Room B213, Xinxin Jingdi Plaza, No.396 Jia He Road, Xiamen 361009, Xiamen,fujianChina
Contact Supplier

72-18-4 L-Valine

Contact Supplier

72-18-4 L-VALINE

  • Hong kong LEO CHEMICAL (HONG KONG) CO., LTD [Manufacturer]
  • Tel: 86-519-85098858/ 86-519-85098877
  • Fax: 86-519-85098888/8889
  • Address: Hong Kong Office :
    LEO CHEMICAL (HONG KONG) CO., LTD
    MNJ2070, RM1602,
    OMEGA PLAZA, 32 DUNDAS STREET,
    MONKOK, KL, HONG KONG null,nullHong kong
Contact Supplier

72-18-4 L-Valine

Contact Supplier

72-18-4 L-Valine

  • China Siwei Development Group Ltd [Manufacturer, Distributor/Wholesaler]
  • Tel: 86-571-57109529
  • Fax: 86-571-57109690
  • Address: Room 34-1 Xiaoshan Hangzhou China null,ZhejiangChina
Contact Supplier

72-18-4 L-Valine

  • China Shanghai Re-found Chemical Co., Ltd [Manufacturers]
  • Tel: +86-411-8278 8989
  • Fax: +86-411-8278 8969
  • Address: Room 1705 Information Tower No.1403 Minsheng Road Pudong Shanghai 200135 China Shanghai,ShanghaiChina
Contact Supplier

Select to

12/20
Previous 8 9 10 11 12 13 14 15 16 17 Next
References of (2S)-2-amino-3-methylbutanoic acid
Title: Valine
CAS Registry Number: 72-18-4
CAS Name: L-Valine
Synonyms: Val; V; 2-aminoisovaleric acid; 2-amino-3-methylbutyric acid; a-aminoisovaleric acid; (S)-2-amino-3-methylbutanoic acid
Molecular Formula: C5H11NO2
Molecular Weight: 117.15
Percent Composition: C 51.26%, H 9.46%, N 11.96%, O 27.31%
Literature References: An essential amino acid for human development. Identified from organ extracts in 1856 by von Group-Besanez; isolated from proteins in 1879 by Schützenberger who proposed that it was aminovaleric acid. Structure confirmation: E. Fischer, Ber. 39, 2320 (1906). 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. 2368-2380, passim. Conformation study: R. H. Yun, J. Hermans, Protein Eng. 4, 761 (1991). Nutritional assessment study: V. R. Young et al., J. Nutr. 102, 1159 (1972); in parenteral nutrition: P. Reiderer et al., Nutr. Metab. 24, 209 (1980); in hemodialysis patients: G. A. Young et al., Kidney Int. 21, 492 (1982). Brief review of metabolism: P. Kamoun, Trends Biochem. Sci. 17, 175-176 (1992).
Properties: Leaflets from water + alcohol, mp 315° (closed capillary). d 1.230. Sublimes. [M]D +33.1° (5N HCl); +72.6° (glacial acetic acid); [a]D23 +22.9° (c = 0.8 in 20% HCl). pK1 2.32; pK2 9.62. Soly in water at 0°: 83.4 g/l; at 25°: 88.5 g/l; at 50°: 96.2 g/l; at 65°: 102.4 g/l. Insol in common neutral solvents.
Melting point: mp 315° (closed capillary)
pKa: pK1 2.32; pK2 9.62
Optical Rotation: [a]D23 +22.9° (c = 0.8 in 20% HCl)
Density: d 1.230
 
Derivative Type: DL-Form
Properties: Sublimes without melting at ordinary speed of heating. Dec 298° (closed capillary, very rapid heating). One part dissolves in 11.7 parts of water at 15°, in 14.1 parts of water at 25°. Insol in common neutral solvents.