8.52007

Fmoc-Cys(tBu)-OH

Novabiochem^®

• Synonyme(s) : Fmoc-Cys(tBu)-OH, N-α-Fmoc-S-t.-butyl-L-cysteine
• Formule empirique (notation de Hill): C₂₂H₂₅NO₄S
• Numéro CAS: 67436-13-9
• Poids moléculaire : 399.50
• Numéro MDL: MFCD00037130
• Code UNSPSC : 12352209
• Nomenclature NACRES : NA.22

Propriétés

• Niveau de qualité: 200
• Gamme de produits: Novabiochem^®
• Pureté: ≥97.0% (acidimetric); ≥98% (TLC); ≥98.0% (HPLC)
• Forme: powder
• Capacité de réaction: reaction type: Fmoc solid-phase peptide synthesis
• Fabricant/nom de marque: Novabiochem^®
• Pf: 133-136 °C
• Application(s): peptide synthesis
• Groupe fonctionnel: thiol
• Température de stockage: 2-30°C
• InChI: 1S/C22H25NO4S/c1-22(2,3)28-13-19(20(24)25)23-21(26)27-12-18-16-10-6-4-8-14(16)15-9-5-7-11-17(15)18/h4-11,18-19H,12-13H2,1-3H3,(H,23,26)(H,24,25)
• Clé InChI: IXAYZHCPEYTWHW-UHFFFAOYSA-N

Description

Description générale

The side-chain tBu group is stable to TFA and iodine oxidation. Treatment with MeSiCl₃/PhSOPh removes t-Bu and cyclizes in one step without scrambling existing disulphide bonds. Removed with Hg(II) to give cysteinyl peptides.

Associated Protocols and Technical Articles
Cleavage and Deprotection Protocols for Fmoc SPPS
Fmoc SPPS of Cysteine-Containing Peptides

Literature references

^[1] S. N. McCurdy (1989) Pept. Res., 2, 147.

Liaison

Replaces: 04-12-1016

Remarque sur l'analyse

Colour (visual): white to slight yellow to beige
Appearance of substance (visual): powder
Identity (IR): passes test
Enantiomeric purity: ≥ 99.5 % (a/a)
Purity (TLC(011A)): ≥ 98 %
Purity (TLC(0811)): ≥ 98 %
Assay (HPLC, area%): ≥ 98.0 % (a/a)
Solubility (1 mmole in 2 ml DMF): clearly soluble
Assay (acidimetric): ≥ 97.0 %
Water (K. F.): ≤ 1.00 %

To see the solvent systems used for TLC of Novabiochem^® products please click here.

Informations légales

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

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable