Fmoc-Lys(Boc)-OH | Omizzur Peptide
* For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.


TypeFmoc amino acids


Purity % (HPLC)> 99.0% (HPLC)
Pack size

CIF Price ( USD )

1 kg$  375.0
In stock
20 kgPlease inquire the lowest
In stock
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General Description


Fmoc-Lys(Boc)-OH | 71989-26-9 | Omizzur

Protected amino acids are the most basic raw materials for solid-phase peptide synthesis . Amino acids all contain alpha amino and carboxyl groups, and some of the 20 amino acids also contain side-chain active groups, such as hydroxyl, amino, guanidino and heterocyclic groups. These active groups need to be protected during the peptide reaction, and the protective groups are removed after the target peptide is synthesized.The most frequently used protected amino acid raw material is the Fmoc amino acids

Fmoc-Lys(Boc)-OH (CAS:71989-26-9) is a commonly used amino acid raw material whose amino group is protected by Fmoc group, and its side chain is protected by Boc group. It is a widely used Fmoc amino acid raw material.

Name : Fmoc-Lys(Boc)-OH Fmoc-Lys(Boc)-OH

Type:  Fmoc Lysine 

CAS : 71989-26-9

Molecular Formula: C26H32N2O6

Molecular Weight: 468.5

Purity (HPLC): 99.0% min

Appearance: White to off-white powder

Loss on Drying: < 0.5%

Specific Rotation (20/D): -9.5~-14.5o (c=1, DMF)

300 MHz 1H: Consistent                                                                                                       HPLC data of Fmoc-Lys(Boc)-OH

Product Data Sheet

Fmoc-Lys(Boc)-OH COA Data







Optical Purity 

Melting Point 

Specific Rotation[α]20D 

Clarity of solution 

Kaiser Test 

Water Content(K.F.) 

Loss on drying 

Element analysis(C、H、N)

 IR Spectrum 

Mass Spectrum 

NMR Spectrum

White powder 



≤0.3% D-enantiomer 


-12o±2.5o(C=1 in DMF) 

0.3 gram in 2ml DMF clear solution





In accordance with the structure

 In accordance with the structure 

In accordance with the structure




Not detectable 


-13.0o(C=1 in DMF) 









Shipping & Storage

1. Peptides in the form of lyophilized powder provided can be stably transported under normal temperature through sealed packaging.Peptides requiring long-term preservation shall be stored in a sealed container containing desiccant in the form of lyophilized powder and stored at a temperature below - 20 centigrade, which can avoid peptide degradation, bacterial degradation and oxidation, and the formation of secondary structure of peptide.

2. The peptide has hygroscopicity. Before opening the package or weighing, please balance the peptide in the desiccator to room temperature to avoid the water absorption.Then can unfold the vial to weigh the peptide.

3. The dissolved peptide is much more unstable than the lyophilized form.The peptide in the form of solution should be dissolved in the sterile water of pH 5-7(or filter with 0.2 μ m membrane) and stored at - 20 centigrade.Stored in small amount respectively to avoid repeated freezing and dissolve of them.

4. Peptides containing Cys, Met or Trp are easy to oxidize. Before peptide sealing, we will add nitrogen or argon to reduce its effection of oxidation. Therefore, deoxidizing buffer is essential for dissolution.

5.Shipping: Deliver to worldwide by Fedex / DHL  (Free shipping for orders over a certain amount)

6.Provide with the goods: quality analysis report (COA,MS,HPLC) ,Other corresponding analysis reports.

Ordering Guide:

1. Please contact us through the 24-hour customer services: [email protected]

2. Click the “ Inquiry Online ”,  fill in your product requirements in the form to get in touch with us.

3.We provide a series of quality inspection reports with the goods. Please specify If you have any other special requirements.

4.Discount policy: Omizzur has regular discount on wholesale quantity.Periodic and regular centralized purchasing will save you a lot of transportation costs.

--20 popular fmoc protected amino acids--

Fmoc-Ala-OH                35661-39-3                 Fmoc-Arg(Pbf)-OH           154445-77-9

Fmoc-Asn(Trt)-OH        132388-59-1               Fmoc-Asp(OtBu)-OH         71989-14-5

Fmoc-Cys(Trt)-OH        103213-32-7               Fmoc-Gln(Trt)-OH             132327-80-1

Fmoc-Glu(OtBu)-OH     71989-18-9                 Fmoc-Gly-OH                    29022-11-5

Fmoc-His(Trt)-OH         109425-51-6               Fmoc-Ile-OH                     71989-23-6

Fmoc-Leu-OH               35661-60-0                 Fmoc-Lys Boc OH           71989-26-9

Fmoc-Met-OH               71989-28-1                 Fmoc-Phe-OH                   35661-40-6

Fmoc-Pro-OH               71989-31-6                 Fmoc-Ser(tBu)-OH            71989-33-8

Fmoc-Thr(tBu)-OH       71989-35-0                 Fmoc-Trp(Boc)-OH            143824-78-6

Fmoc-Tyr(tBu)-OH        71989-38-3                 Fmoc-Val-OH                    68858-20-8

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