L-Isoleucine
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L-Isoleucine

CAS 73-32-5
Structure
Synonyms (2S,3S)-Alpha-amino-beta-merthylvalericacid
IUPAC Name (2S,3S)-2-Amino-3-methylpentanoic acid
Molecular Weight 131.17
Molecular Formula C6H13NO2
Canonical SMILES CCC(C)C(C(=O)O)N
InChI InChI=1S/C6H13NO2/c1-3-4(2)5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)/t4-,5-/m0/s1
InChI Key AGPKZVBTJJNPAG-WHFBIAKZSA-N
Boiling Point 225.8±23.0 °C
Melting Point 288 °C(lit.)
Flash Point 168-170 °C
Purity 99%
Density 1.2930 g/cm³
Refractive Index 40.5 ° (C=4, 6mol/L HCl)
pKa pK1: 2.32, pK2: 9.76 (25°C)
pH 5.5-6.5 (40g/l, H₂O, 20°C)
Solubility in Water 41.2 g/L (50 ºC)
Appearance White to off-white powder

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