8.55059
Merrifield resin LL (100-200 mesh)
Novabiochem®
Synonym(s):
Chloromethylpolystyrene-divinylbenzene (100-200 mesh)
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About This Item
UNSPSC Code:
12352101
NACRES:
NA.22
Recommended Products
Quality Level
product line
Novabiochem®
form
beads
reaction suitability
reaction type: Fmoc solid-phase peptide synthesis
manufacturer/tradename
Novabiochem®
application(s)
peptide synthesis
storage temp.
2-30°C
General description
Merrifield resin was the standard support for the synthesis of peptide acids by Boc SPPS [1,2]. In peptide chemistry, it is now really only used in the synthesis of small to medium sized peptides, as the benzylic ester resin linkage is not completely stable towards repetitive treatment with TFA. Attachment of the C-terminal residue is generally achieved by heating the resin in DMF with the appropriate amino acid cesium salt in the presence of KI [3]; although,Me4N salts [4], sodium salts[5] in THF with Bu4NF catalysis [6] and zinc salts in EtOH have also been used [7]. Cleavage is normally effected by treatment of resin with HF or TFMSA, or by hydrogenolysis [8]. Alcohols can be released using reducing agents such as DIBAL [6] or LiBH4 [9]. Methyl esters can be produced by transesterification with methoxide [10].
Associated Protocols and Technical Articles
Protocols for Loading of Peptide Synthesis Resins
Associated Protocols and Technical Articles
Protocols for Loading of Peptide Synthesis Resins
Linkage
Replaces: 01-64-0008
Analysis Note
Color (visual): white to yellow to beige
Appearance of substance (visual): beads
Loading (determined by elemental analysis for sulfur after derivatization with KSAc): 0.40 - 1.00 mmol/g
Swelling Volume (in CH₂Cl₂): lot specific result
The polymer matrix is copoly (styrene-1 % DVB), 100 -200 mesh (75 - 150 µm)
Appearance of substance (visual): beads
Loading (determined by elemental analysis for sulfur after derivatization with KSAc): 0.40 - 1.00 mmol/g
Swelling Volume (in CH₂Cl₂): lot specific result
The polymer matrix is copoly (styrene-1 % DVB), 100 -200 mesh (75 - 150 µm)
Legal Information
Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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