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CAS No 6600-40-4 , (2S)-2-aminopentanoic acid

  • Name: (2S)-2-aminopentanoic acid
  • Synonyms: L-2-aminopentanoic acid; norvaline; 6600-40-4;L-norvaline; (S)-2-Aminopentanoic acid;(2S)-2-aminopentanoic acid; (2S)-2-aminopentanoic acid; (S)-2-Aminovaleric acid;
  • CAS Registry Number:
  • Melting Point: 300 ºC
  • Boiling Point: 228
  • Density: 1.067g/cm3
  • Refractive index: 25 ° (C=10, 6mol/L HCl)
  • Alpha: 24.5 º (C=10, 6 N HCL)
  • Water Solubility: 10.5 G/100 ML (18 ºC)
  • Safety Statements: S24/25
  • Hazard Symbols: C,Xn
  • HS Code: 29224995
  • EINECS: 229-543-3
  • Molecular Weight: 117.14634
  • InchiKey: SNDPXSYFESPGGJ-BYPYZUCNSA-N
  • InChI: InChI=1S/C5H11NO2/c1-2-3-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1
  • Risk Statements: S24/25
  • Molecular Formula: C5H11NO2
  • Molecular Structure:CAS No:6600-40-4 (2S)-2-aminopentanoic acid

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References of (2S)-2-aminopentanoic acid
Title: Norvaline
CAS Registry Number: 6600-40-4
CAS Name: 2-Aminovaleric acid
Synonyms: a-aminovaleric acid; 2-aminopentanoic acid
Molecular Formula: C5H11NO2
Molecular Weight: 117.15
Percent Composition: C 51.26%, H 9.46%, N 11.96%, O 27.31%
Line Formula: CH3(CH2)2CH(NH2)COOH
Literature References: Prepd by treating butyraldehyde ammonia with HCN and HCl: Slimmer, Ber. 35, 404 (1902); from 2-acetylvaleric acid ethyl ester: Hamlin, Hartung, J. Biol. Chem. 145, 349 (1942); from acetamidomalonic acid diethyl ester: Archer, Albertson, US 2445817 (1948 to Winthrop-Stearns); from 1-nitrobutane: Stiles, Finkbeiner, J. Am. Chem. Soc. 85, 616 (1963); US 3055936 (1962 to Res. Corp.). Prepn of optically active forms: Abderhalden, Kurton, Fermentf. 4, 328; Chem. Zentralbl. 1921, III, 296.
 
Derivative Type: DL-Form
Properties: Minute leaflets from alcohol or water, mp 303° (closed capillary). pK1￠ 2.36; pK2￠ 9.72. Sublimes without decompn. One gram dissolves in 10 ml water at 18°. Freely sol in hot water; practically insol in alcohol, ether, chloroform, ethyl acetate, petr ether.
Melting point: mp 303° (closed capillary)
pKa: pK1￠ 2.36; pK2￠ 9.72
 
Derivative Type: L(+)-Form
Properties: Crystals from dil alc. mp ~305° (closed capillary). [M]D +29.2° (5N HCl); [M]D +41.0° (glacial acetic acid). [a]D20 +23.0° (c = 10 in 20% HCl). Freely sol in hot water; insol in alcohol, ether, chloroform, ethyl acetate, petr ether.
Melting point: mp ~305° (closed capillary)
Optical Rotation: [a]D20 +23.0° (c = 10 in 20% HCl)
 
Derivative Type: D(-)-Form
Properties: Minute leaflets. mp ~307°. [a]D20 -24.2° (c = 10 in 20% HCl). Freely sol in hot water; insol in alcohol, ether, chloroform, ethyl acetate, petr ether.
Melting point: mp ~307°
Optical Rotation: [a]D20 -24.2° (c = 10 in 20% HCl)