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61820

L-Leucine

≥99.0% (NT)

Synonym(s):

(S)-2-Amino-4-methylpentanoic acid

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About This Item

Linear Formula:
(CH3)2CHCH2CH(NH2)CO2H
CAS Number:
61-90-5
Molecular Weight:
131.17
EC Number:
200-522-0
UNSPSC Code:
12352209
MDL number:
MFCD00002617
Beilstein/REAXYS Number:
1721722
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assay

≥99.0% (NT)

optical activity

[α]20/D +15.5±1.0°, c = 5% in 5 M HCl

impurities

≤0.3% foreign amino acids

ign. residue

≤0.1% (as SO4)

loss

≤0.1% loss on drying, 110 °C

mp

>300 °C (lit.)

anion traces

chloride (Cl-): ≤200 mg/kg, sulfate (SO42-): ≤100 mg/kg

cation traces

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, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, NH4+: ≤100 mg/kg, Na: ≤100 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

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

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