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CAS NO:
71989-33-8
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Basic Info
CAS Number
71989-33-8
Pharmacopoeia
In-house Standards
Grade
Research grade
Is Manufacturer
No
Samples Provided
YES
Sample Policy
1-10mg for free
Packaging & Delivery
Packaging Specification
500mg,1g, 10g,50g 100g per package with icebag
Minimum Order Quantity
10mg
Delivery Cycle
In stock or 2-3 weeks
Product Description
Hangzhou Go Top Peptide Biotech Co., Ltd. is a national high-tech enterprise specializing in the research and development and production of peptides and related derivatives. It provides peptide-related custom synthesis and technology for domestic and foreign medical research and development, biotechnology, universities and scientific research institutions service. For consultation or ordering, please contact:86-571-88211951, 86-13588827304 (Cindy Mei), sales14@gotopbio.com
AI Product Description
*The following content is generated by AI and is for reference only.
Fmoc-Ser(tBu)-OH, chemically known as Fmoc-Serine tert-butyl ester hydrochloride or more accurately Fmoc-O-(tert-butyl)-L-serine, is a vital protected amino acid derivative widely utilized in solid-phase peptide synthesis (SPPS). Its molecular formula is C20H23NO6, and it carries the CAS number 19468-75-6. This compound serves as a critical building block for constructing complex peptides containing serine residues while ensuring specific side-chain protection. The molecule features two distinct protective groups: the fluorenylmethyloxycarbonyl (Fmoc) group attached to the alpha-amino function and the tert-butyl (tBu) ether protecting the hydroxyl group on the beta-carbon of the serine side chain.
The primary application of Fmoc-Ser(tBu)-OH lies in the efficient assembly of peptides using the Fmoc/tBu strategy. In this methodology, the Fmoc group provides base-labile protection for the N-terminus, allowing for mild deprotection conditions using piperidine, which preserves the integrity of acid-sensitive functionalities elsewhere in the growing chain. Simultaneously, the tBu group on the serine hydroxyl offers robust acid stability during the coupling cycles but can be efficiently removed under strong acidic conditions, such as those provided by trifluoroacetic acid (TFA), at the final cleavage stage from the resin. This dual-protection scheme prevents unwanted side reactions, such as O-acylation or backbone cyclization, ensuring high purity and yield in the final synthetic product.
Researchers and pharmaceutical scientists frequently employ this reagent to synthesize therapeutic peptides, bioactive molecules, and diagnostic probes where serine plays a functional role, often acting as a phosphorylation site or participating in hydrogen bonding networks. Due to its high chemical stability and commercial availability, Fmoc-Ser(tBu)-OH is an indispensable component in modern medicinal chemistry laboratories. It facilitates the rapid generation of peptide libraries for drug discovery campaigns and supports the development of novel biologics. Proper storage in a cool, dry place away from light is recommended to maintain its quality, making it a standard reagent for both academic research and industrial-scale peptide manufacturing processes aiming for precise structural control.
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