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8.52382

Sigma-Aldrich

Fmoc-Leu-Cys(psiDmp,Hpro)-OH

Novabiochem®

Synonym(s):

Fmoc-Leu-Cys(psiDmp,Hpro)-OH

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About This Item

Empirical Formula (Hill Notation):
C34H38N2O7S
Molecular Weight:
618.74
UNSPSC Code:
12352209

Quality Level

product line

Novabiochem®

form

powder

reaction suitability

reaction type: Fmoc solid-phase peptide synthesis

manufacturer/tradename

Novabiochem®

application(s)

peptide synthesis

functional group

thiol

storage temp.

15-25°C

General description

A cysteine-based pseudoproline dipeptide. It prevents aggregation during Fmoc SPPS and enhances product purity in an identical manner to standard pseuproline dipeptides. The pseudoproline ring is cleaved with TFA, regenerating the native Cys residue.

Associated Protocols and Technical Articles
Cleavage and Deprotection Protocols for Fmoc SPPS
Overcoming Aggregation in Fmoc SPPS

Analysis Note

Colour (visual): white to slight yellow to beige
Appearance of substance (visual): powder
Identity (IR): passes test
Enantiomeric purity Cysteine: ≥ 99.5 % (a/a)
Enantiomeric purity second amino acid: ≥ 99.0 % (a/a)
Purity (TLC(157A)): ≥ 97 %
Purity (TLC(CMA2)): ≥ 97 %
Assay (HPLC, area%): ≥ 97.0 % (a/a)
Ethyl acetate (HS-GC): ≤ 0.50 %
Acetate (IC): ≤ 0.05 %

To see the solvent systems used for TLC of Novabiochem® products please click here.
The product is a racemic mixture.

Legal Information

Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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Articles

Learn how to overcome aggregation in Solid Phase Peptide Synthesis

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