L-Leucine
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L-Leucine

CAS 61-90-5
Structure
Synonyms 4-Methyl-L-norvalin
IUPAC Name (2S)-2-Amino-4-methylpentanoic acid
Molecular Weight 131.17
Molecular Formula C6H13NO2
Canonical SMILES CC(C)CC(C(=O)O)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
InChI Key ROHFNLRQFUQHCH-YFKPBYRVSA-N
Boiling Point 122-134 °C
Melting Point >300 °C(lit.)
Flash Point 145-148 °C
Purity 99%
Density 1.293 g/cm³
Refractive Index 1.4630
pKa 2.328(at 25 °C)
pH 5.5-7.0 (1%, H₂O, 25°C)
Solubility in Water 24.5 g/L
Appearance White to off-white powder

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