Fmoc-L-Cysteine(Trt)-OH (Fmoc-Cys(Trt)-OH) is an
Fmoc-protected amino acid building block for Fmoc/tBu solid-phase peptide
synthesis (SPPS). Also known as N-Fmoc-S-trityl-L-cysteine. The trityl (Trt)
side-chain group is acid-labile, helps keep the residue soluble during coupling
and limits side reactions that affect unprotected side chains. ApiSyn supplies
it within a broad protected amino acid range, so peptide programmes can source
building blocks from one manufacturer.
| Chemical Name | N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-trityl-L-cysteine |
| Molecular Formula | C37H31NO4S |
| Molecular Weight | 585.7 |
| CAS Number | 103213-32-7 |