58698
N-Isobutyryl-L-cysteine
derivatization grade (chiral), 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
UNSPSC Code:
23151816
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.22
MDL number:
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
grade
derivatization grade (chiral)
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
Quality Level
Related Categories
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
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Yuta Mutaguchi et al.
Frontiers in microbiology, 9, 1540-1540 (2018-07-31)
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)
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
Application of chiral derivatizing agents in the high-performance liquid chromatographic separation of amino acid enantiomers: a review
Ilisz L, et al.
Journal of Pharmaceutical and Biomedical Analysis, 47(1), 1-15 (2008)
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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