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SiliaBond®- Nucleophile Scavengers

In order to simplify the removal of nucleophile impurities from reaction mixtures, SiliCycle has developed a range of silica bound nucleophile scavengers. See available scavengers below

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  1. SiliaBond® Tosyl Chloride

    SiliaBond® Tosyl Chloride

    SiliaBond® Tosyl Chloride (Si-TsCl) readily reacts with nucleophiles such as amines and alcohols. Reaction with alcohols yields the bound tosylate, which can then be used to synthesize amines and oxazolines.

  2. SiliaBond® Isocyanate

    SiliaBond® Isocyanate

    SiliaBond® Isocyanate (Si-ISO) is a versatile scavenger for nucleophiles. It readily scavenges amines, thiols, thiolates, alkoxides, and acidic phenols. Loading is determined by the removal of benzylamine in hexane at room temperature.

  3. SiliaBond® Tosic Acid nec (SCX)

    SiliaBond® Tosic Acid nec (SCX)

    SiliaBond® Tosic Acid (SiliaBond SCX, Si-TsOH) is a versatile bound strong acid with a pka <<1. It is widely used for the scavenging of amines and other basic functionalities, including weakly basic anilines, borohydrides, and metals such as Ni and Ag. It can also be used as an acid catalyst for organic reactions.Si-TsOH can serve as an alternative method to quench reactions instead of aqueous or organic soluble acids.


  4. SiliaBond Tosic Acid (SCX) metal scavenger

    SiliaBond® Tosic Acid (SCX)

    SiliaBond Tosic Acid (SiliaBond SCX, Si-TsOH) is a versatile bound strong acid with a pka <<1. It is widely used for the scavenging of amines and other basic functionalities, including weakly basic anilines, borohydrides, and metals such as Ni and Ag. It can also be used as an acid catalyst for organic reactions. Si-TsOH can serve as an alternative method to quench reactions instead of aqueous or organic soluble acids.
  5. SiliaBond® Maleimide

    SiliaBond® Maleimide

    SiliaBond® Maleimide (Si-MAL) has been designed to scavenge thiols. 90% of mercaptoethanol was removed with 4 eq. after 15 minutes in an aqueous environment. Complete scavenging was observed after 3 hours. SiliaBond Maleimide can also be used to immobilize peptides and proteins through the cysteine residues. 95% of L-cysteine was immobilized after only 15 minutes in a pH 4.5 buffered solution using 4 eq. of SiliaBond Maleimide.

  6. SiliaPrep™ SPE Cartridges Tosic Acid (SCX)

    SiliaPrep™ SPE Cartridges Tosic Acid (SCX)

    SiliaPrep Tosic Acid (SCX) is a strong cation exchanger and maintains a negative charge throughtout the pH scale. The most common use is a strong cation exchanger for the amine and basics molecules "catch and release" purification technique in SPE cartridges.

  7. SiliaPrep™ SPE Cartridges Tosic Acid nec (SCX)

    SiliaPrep™ SPE Cartridges Tosic Acid nec (SCX)

    SiliaPrep Tosic Acid is a strong cation exchanger and maintains a negative charge throughtout the pH scale. The most common use is a strong cation exchanger for the amine and basics molecules "catch and release" purification technique in SPE cartridges.

  8. SiliaPrep™ 96 Well Plates Tosic Acid (SCX)

    SiliaPrep™ 96 Well Plates Tosic Acid (SCX)


    Standard SiliaPrep 96 Well Plates are available in 2 mL with different bed weight up to 200 mg. Various sorbents are available and are divided into several sections based on sorbent characteristics.
  9. SiliaPrep™ 96 Well Plates Tosic Acid nec (SCX)

    SiliaPrep™ 96 Well Plates Tosic Acid nec (SCX)


    Standard SiliaPrep 96 Well Plates are available in 2 mL with different bed weight up to 200 mg. Various sorbents are available and are divided into several sections based on sorbent characteristics.
  10. SiliaBond® Nucleophile Complete Scavenger Kit - includes the following products: Carbonate, Isocyanate, Maleimide, Tosyl Chloride

    SiliaBond® Nucleophile Complete Scavenger Kit: Carbonate, Isocyanate, Maleimide & Tosic Acid (K32630B)

    This kit includes the following products: Carbonate, Isocyanate, Maleimide, Tosyl Chloride

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