MTS-31

What Is MTS-31?

MTS-31 appears in peptide vendor product listings, but unlike well-characterized compounds such as SS-31 or MOTS-c, which have specific, published amino acid sequences and mechanistic research behind them, MTS-31 does not have a consistent, independently confirmed definition across sources. It's not clear from available information whether MTS-31 refers to a specific novel peptide sequence, a blend of existing compounds, or a vendor-specific naming convention loosely associated with the "SS" or "MOTS" mitochondrial peptide families by similarity of name alone.

This distinction matters for how the compound should be researched. A defined peptide sequence can be looked up in scientific databases and cross-referenced against published studies. A vendor product name without a confirmed, standardized composition cannot be evaluated the same way, since there's no way to confirm that research on a similarly-named compound actually applies to what a specific product contains.

What Should Guide Research Interest Here?

• Confirm the Actual Sequence or Composition First

  Before drawing any conclusions about MTS-31's mechanism or research base, the first step is confirming its exact amino acid sequence or composition from a reliable source, ideally a certificate of analysis or a peer-reviewed reference, rather than assuming it's related to better-known compounds based on naming similarity alone.

• Don't Assume a Connection to SS-31 or MOTS-c Based on Name Alone

  The "MTS" and "SS" naming patterns can look similar, but similarity in naming convention is not evidence of a shared mechanism or research base. Treating MTS-31 as interchangeable with SS-31 or MOTS-c because of name similarity would be a mistake without independent confirmation.

Reconstitution and Handling

Products marketed as MTS-31 are typically supplied as a lyophilized powder in a sealed vial and reconstituted with bacteriostatic water before use in a research setting. Water should be added slowly rather than injected directly into the powder, and the vial should be swirled, not shaken.

Since the amount of water used affects the concentration of the final solution, researchers often use a dosage calculator to work this out before mixing. Keel Bio's calculator is a commonly used tool for this. Once reconstituted, the solution is kept refrigerated to help preserve its stability.

Key Takeaways

MTS-31 does not have a standardized, independently verifiable definition in the published literature, which puts it in a different evidence category entirely from well-characterized peptides like SS-31 or MOTS-c. Anyone encountering this name in a product catalog should treat it as an open question requiring direct verification of composition, rather than assuming it carries the research backing of similarly-named compounds.

Frequently Asked Questions