Rink Amide-MBHA Resin is an acid-labile peptide-synthesis support used for Fmoc solid-phase peptide synthesis of C-terminal peptide amides. The Rink amide linker is associated with an MBHA-based polystyrene support architecture, providing a standard route to peptides ending in -CONH₂ after acidic cleavage.

Like Rink Amide AM Resin, this support is selected when C-terminal amidation is required by the target peptide sequence. The distinction between AM and MBHA versions lies primarily in the underlying resin/support architecture rather than in the terminal functionality of the final peptide; both are designed to produce peptide amides.

Product Information

Peptide-Amide Synthesis with Rink Amide-MBHA Resin

Following Fmoc removal from the linker, the first protected amino acid can be coupled using standard Fmoc-SPPS chemistry. Iterative amino-acid coupling and Fmoc deprotection then builds the peptide chain from the C-terminus toward the N-terminus.

Final acidic cleavage breaks the Rink linker and generates a primary peptide amide. Conventional acid-labile side-chain protecting groups can also be removed during this stage depending on the cleavage formulation.

Rink Amide-MBHA vs Rink Amide AM Resin

Rink Amide AM Resin and Rink Amide-MBHA Resin are both widely used for producing C-terminal peptide amides.

The AM form uses an aminomethyl-polystyrene support, whereas the MBHA version uses an MBHA-based support architecture. This distinction should not be interpreted as a universal performance ranking: actual synthesis performance depends on resin loading, particle size, swelling, sequence length, peptide hydrophobicity and coupling conditions.

When Is Rink Amide-MBHA Resin Appropriate?

This resin is appropriate when the target molecular specification requires a C-terminal amide and the synthesis is being performed using Fmoc chemistry. Examples include many amidated peptide hormones, neuropeptides, antimicrobial peptides and receptor ligands.

Researchers comparing different Rink supports should focus on lot-specific loading and physical resin specifications rather than selecting solely on product name.

Applications

Rink Amide-MBHA Resin can support routine peptide-amide synthesis, modified peptide preparation, peptide library construction, receptor-ligand peptide synthesis and sequences intended for downstream biochemical, cellular or in vivo evaluation.

The resin itself is not an in vitro or in vivo assay reagent; it is removed during peptide cleavage and purification before biological testing.

Purchasing and QC Considerations

Important resin specifications include substitution or loading in mmol/g, mesh or particle-size range, polymer crosslinking and lot-to-lot consistency. These variables can affect reagent consumption, synthesis capacity, resin swelling and mass-transfer behavior.

Because Rink resins are polymer-supported materials, a CAS number alone should not be treated as a complete resin specification. Use the lot-specific COA for quantitative synthesis planning.

For guidance on evaluating loading alongside sequence, support and solvent conditions, see Peptide Resin Loading in SPPS: How to Choose the Right Loading.

Product Documents

A Material Safety Data Sheet (MSDS) is available for this product to support laboratory handling, storage and safety assessment.

MSDS_Rink-Amide-MBHA-Resin_AS3022

Certificates of Analysis (COAs) are batch-specific. Please contact us to request the COA for your product, and we will provide it by email.

Frequently Asked Questions

Does Rink Amide-MBHA Resin produce a peptide amide?

Yes. The target peptide is released with a primary C-terminal amide.

Can it be used with standard Fmoc chemistry?

Yes. It is designed for Fmoc solid-phase peptide synthesis.

Is Rink Amide-MBHA Resin chemically identical to Rink Amide AM Resin?

No. They use different underlying support architectures, although both employ Rink amide chemistry to generate C-terminal peptide amides.

Which is better, AM or MBHA?

There is no universally superior choice. Loading, mesh size, swelling properties, sequence characteristics and synthesis scale should be considered for the specific project.

Related Technical Resources

Explore additional SPPS Resins for peptide acid and peptide amide synthesis.

For custom peptide-amide production, see our Chemical Peptide Synthesis service.

Research Use Only.