FMOC-CYS(MMT)-OH 5 G

General description

Building block for Fmoc SPPS which enables selective deprotection of cysteinyl thiol group on the solid phase. The Mmt group can be removed on the solid phase with 1% TFA in DCM containing 5% TIS ^[1,2,3,4]. Reference 4 describes a novel method for on-resin disulfide bond formation which uses Cys(Mmt) in combination with Cys(tBuS).

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

Literature references

^[1] K. Barlos, et al. in ′Peptides 1992, Proc. 22nd European Peptide Symposium′, C. H. Schneider & A. N. Eberle (Eds), ESCOM, Leiden, 1993, pp. 283.
^[2] C. Kellenberger, et al. (1995) Pept. Res., 8, 321.
^[3] K. Barlos, et al. (1996) Int. J. Peptide Protein Res., 47, 148.
^[4] A. K. Galande, et al. (2005) J. Comb. Chem., 7, 174.

Linkage

Replaces: 04-12-1061

Analysis Note

Color (visual): white to slight yellow to beige
Appearance of substance (visual): powder
Identity (IR): passes test
Enantiomeric purity: ≥ 99.0 % (a/a)
Purity (TLC(011A)): ≥ 99 %
Purity (TLC(0811)): ≥ 99 %
Assay (HPLC, area%): ≥ 98.0 % (a/a)
Solubility (1 mmole in 2 ml DMF): clearly soluble
Assay (acidimetric): ≥ 85.0 %
Water (K. F.): ≤ 1.0 %

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

Legal Information

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

Molecular Weight: 615.74. Empirical Formula: C₃₈H₃₃NO₅S. Quality Level: 200. product line: Novabiochem^®. . Assay: ≥. 85.0% (acidimetric), ≥. 98.0% (HPLC), ≥. 99% (TLC). 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. InChI: 1S/C38H33NO5S/c1-43-29-22-20-28(21-23-29)38(26-12-4-2-5-13-26,27-14-6-3-7-15-27)45-25-35(36(40)41)39-37(42)44-24-34-32-18-10-8-16-30(32)31-17-9-11-19-33(31)34/h2-23,34-35H,24-25H2,1H3,(H,39,42)(H,40,41)/t35-/m0/s1. InChI key: LOBUWFUSGOYXQX-DHUJRADRSA-N. Storage Class Code: 11 - Combustible Solids. WGK: WGK 3. Flash Point(F): Not applicable. Flash Point(C): Not applicable.