8.55059

Merrifield resin LL (100-200 mesh)

Novabiochem^®

• Synonym(e): Chloromethylpolystyrene-divinylbenzene (100-200 mesh)
• UNSPSC-Code: 12352101
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 200
• Produktlinie: Novabiochem^®
• Form: beads
• Eignung der Reaktion: reaction type: Fmoc solid-phase peptide synthesis
• Hersteller/Markenname: Novabiochem^®
• Anwendung(en): peptide synthesis
• Lagertemp.: 2-30°C

Beschreibung

Allgemeine Beschreibung

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

Verlinkung

Replaces: 01-64-0008

Hinweis zur Analyse

Farbe (visuell): weiß bis gelb bis beige
Aussehen der Substanz (visuell): Kügelchen
Beladung (Elementaranalyse aus Schwefel nach Derivatisierung mit KSAc): 0.40 - 1.00 mmol/g
Aufquellvolumen (in CH₂Cl₂): chargenspezifischer Wert
Die Polymermatrix ist Copoly (Styrol-1 % DVB), 100- 200 mesh (75 - 150 µm)

Rechtliche Hinweise

Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable