Fmoc-Thr(tBu)-OH

CAS Number: 71989-35-0
Category: N-Fmoc Amino Acids
Synonyms: N-(9-Fluorenylmethoxycarbonyl)-O-tert-butyl-L-threonine / (2S,3R)-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-3-[(2-methylpropan-2-yl)oxy]butanoic acid
✓ GMP-compliant ✓ Commercial supply&ample stock ✓ Various Packaging Available ✓ Factory documentation support

Product Specifications

CAS Number71989-35-0
Molecular FormulaC23H27NO5
Molecular Weight397.47
Purity99%
AppearanceWhite to off-white solid
Storage ConditionsRoom Temperature
Package100G,1KG, 25KG

Product Overview

Fmoc-Thr(tBu)-OH; Fmoc-O-tert-butyl-L-threonine CAS: 71989-35-0

Applications

The standard orthogonally protected threonine derivative used in Fmoc Solid-Phase Peptide Synthesis (SPPS). The base-labile Fmoc group on the alpha-amino site allows step-by-step chain elongation, while the acid-labile tert-butyl (tBu) ether protects the side-chain secondary alcohol functionality. The tBu group remains intact during routine Fmoc cleavage steps with piperidine and is concurrently cleaved off alongside the resin bond during final trifluoroacetic acid (TFA) treatment.

Quality Assurance

Can be tested according to the customer’s method of analysis.

Certificate of Analysis (COA) and Material Safety Data Sheets (MSDS) provided upon request.