L-Leucine

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

Quality Level

200

InChI key

ROHFNLRQFUQHCH-YFKPBYRVSA-N

InChI

1S/C6H13NO2/c1-4(2)3-5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)/t5-/m0/s1

SMILES string

CC(C)C[C@H](N)C(O)=O

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