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L7875

Sigma-Aldrich

DL-Leucine

≥99% (HPLC)

Synonym(s):

(±)-Amino-4-methylpentanoic acid

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About This Item

Linear Formula:
(CH3)2CHCH2CH(NH2)CO2H
CAS Number:
328-39-2
Molecular Weight:
131.17
Beilstein/REAXYS Number:
636005
EC Number:
206-328-2
MDL number:
MFCD00063087
UNSPSC Code:
12352209
PubChem Substance ID:
24896484
NACRES:
NA.26

product name

DL-Leucine, ≥99% (HPLC)

assay

≥99% (HPLC)

form

powder

color

white

mp

293-296 °C (subl.) (lit.)

solubility

1 M HCl: soluble

application(s)

detection
peptide synthesis

SMILES string

CC(C)CC(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)

InChI key

ROHFNLRQFUQHCH-UHFFFAOYSA-N

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Application

DL-Leucine is a racemic mixture of the D- and L- enantiomers of Leucine. DL-Leucine is used to form benzimidazole and pyrimidine hydroxy azo dyes with various transition metals. DL-Leucine may be used for the evaluation of chiral amino acid separation techniques.

DL-Leucine is used for the following applications:
  • Used as a standard for the measurement of free amino acids
  • Used in the process of tritiated leucine uptake
  • Used in solution preparation (various organics were used in different combinations and concentrations to model complex surface tension effects, DL-Leucine is one of them). It is chosen due to its presence in atmospheric aerosols and ice nucleation activity as well as for its surfactant character

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)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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