61819

L-Leucine

≥99.5% (NT), suitable for NMR, BioUltra

• Synonym(s): (S)-2-Amino-4-methylpentanoic acid
• Linear Formula: (CH₃)₂CHCH₂CH(NH₂)CO₂H
• CAS Number: 61-90-5
• Molecular Weight: 131.17
• Beilstein/REAXYS Number: 1721722
• EC Number: 200-522-0
• MDL number: MFCD00002617
• UNSPSC Code: 12352209
• eCl@ss: 32160406
• PubChem Substance ID: 57651866
• NACRES: NA.26

Properties

• Product Name: L-Leucine, BioUltra, ≥99.5% (NT)
• product line: BioUltra
• assay: ≥99.5% (NT)
• form: powder or crystals
• optical activity: [α]20/D +15.5±0.5°, c = 5% in 5 M HCl
• technique(s): NMR: suitable
• impurities: insoluble matter, passes filter test; ≤0.3% foreign amino acids
• ign. residue: ≤0.1%
• loss: ≤0.1% loss on drying, 20 °C (HV)
• color: white
• mp: >300 °C (lit.)
• solubility: 1 M HCl: 0.1 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤200 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• cation traces: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; NH₄⁺: ≤100 mg/kg; Na: ≤100 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 0.1 M in 1 M HCl
• UV absorption: λ: 260 nm A_max: 0.05; λ: 280 nm A_max: 0.05
• SMILES string: CC(C)C[C@H](N)C(O)=O
• 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

Description

Other Notes

As spacer in isotachophoresis of serum proteins[1][2]; Growth requirement of various microorganisms[3]

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)