SS-31

SS-31 is a synthetic tetrapeptide — a chain of four amino acids with the sequence D-Arg-Dmt-Lys-Phe-NH2, where Dmt is 2′,6′-dimethyltyrosine, a modified form of tyrosine. Its molecular formula is C32H49N9O5, its molecular weight is approximately 639.8 g/mol, and its CAS number is 736992-21-5. The peptide belongs to a class of mitochondria-targeted tetrapeptides whose structure follows an alternating aromatic-cationic motif (positive charge, aromatic ring, positive charge, aromatic ring), which gives it membrane-permeable characteristics. SS-31 has a structural affinity for cardiolipin, a phospholipid found almost exclusively in the inner mitochondrial membrane.

Available individual vial sizes: 10mg, 50mg. Each purchase quantity refers to one individual vial, not a supplier box.

Chemical identifiers refer to the stated reference form; salt counterions can change formula weight. Follow the supplied material’s documentation for storage and handling. Cited research is not a batch analysis of this product.

For laboratory research use only. Not for human or animal use.

Research and chemical references

• SS-31/cardiolipin experimental study