58698
N-Isobutyryl-L-cysteine
for chiral derivatization, LiChropur™, ≥97.0%
Synonym(s):
N-(2-Methylpropionyl)-L-cysteine
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About This Item
Empirical Formula (Hill Notation):
C7H13NO3S
CAS Number:
Molecular Weight:
191.25
MDL number:
UNSPSC Code:
12000000
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.22
Recommended Products
grade
for chiral derivatization
Quality Level
product line
ChiraSelect™
Assay
≥97.0% (RT)
≥97.0%
form
solid
optical purity
enantiomeric ratio: ≥99.5:0.5 (HPLC)
quality
LiChropur™
technique(s)
HPLC: suitable
mp
97-101 °C
storage temp.
2-8°C
SMILES string
CC(C)C(=O)N[C@@H](CS)C(O)=O
InChI
1S/C7H13NO3S/c1-4(2)6(9)8-5(3-12)7(10)11/h4-5,12H,3H2,1-2H3,(H,8,9)(H,10,11)/t5-/m0/s1
InChI key
BWBQXMAXLAHHTK-YFKPBYRVSA-N
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General description
N-Isobutyryl-L-cysteine is a chiral derivatizing agent, widely used for the separation of amino acid enantiomers.
Application
N-Isobutyryl-L-cysteine may be used as a chiral derivatization agent for the determination of D- and L-amino acids in natural/synthetic bioactive peptides, pharmaceutical formulations and absolute configuration of selenomethionine using chromatography techniques.
Packaging
Bottomless glass bottle. Contents are inside inserted fused cone.
Other Notes
Chiral derivatizing agent employed in the assay of the enantiomeric purity of amino acids with OPA
Legal Information
ChiraSelect is a trademark of Sigma-Aldrich Co. LLC
LiChropur is a trademark of Merck KGaA, Darmstadt, Germany
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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H Brückner et al.
Journal of chromatography, 476, 73-82 (1989-08-04)
The enantioseparation of standard mixtures composed of protein DL-amino acids was performed by reversed-phase high-performance liquid chromatography of the corresponding diastereomeric isoindolyl derivatives, formed by automated precolumn derivatization with o-phthaldialdehyde (OPA) and a series of N-acyl-L-cysteines(Acyl-Cys). A photodiode-array detector, operating
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Isoleucine 2-epimerase (ILEP) is a novel branched-chain amino acid racemase isolated from Lactobacillus buchneri. In this study, we examined production of free d-branched-chain amino acids such as d-valine, d-leucine, and d-allo-isoleucine, using lactic acid bacteria carrying homologs to ILEP. Twelve
H. Bruckner et al.
Journal of Chromatography A, 666, 259-259 (1994)
M.A. Blaskovich et al.
Journal of the American Chemical Society, 115, 5021-5021 (1993)
Liquid chromatographic determination of d-and l-amino acids by derivatization with o-phthaldialdehyde and N-isobutyryl-l-cysteine applications with reference to the analysis of peptidic antibiotics, toxins, drugs and pharmaceutically used amino acids
Bruckner H, et al.
Journal of Chromatography A, 711(1), 201-215 (1995)
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