- Free shipping on all orders over $200 (US) and $300 (International)
Price range: $94.00 through $374.00
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. Supplied as a white to off-white lyophilized powder, it is soluble in water. This product is for research purposes only.
ℹ️ Note: 1 kit includes 10 vials
Free shipping on all orders over $200 (US) and $300 (International).
Every batch is HPLC & Mass Spectrometry verified. Full lab reports are available for every order within 30 days of purchase.
Your transactions are protected by our private, encrypted network. Supporting secure wire transfers and international invoicing.
SS-31 is a synthetic tetrapeptide — a chain of four amino acids with the sequence D-Arg-Dmt-Lys-Phe-NH2. “Dmt” stands for 2′,6′-dimethyltyrosine, a modified version of the natural amino acid tyrosine. The molecular formula is C32H49N9O5, and it has a molecular weight of approximately 639.8 g/mol. Its CAS registry number is 736992-21-5. The peptide carries a net positive charge at physiological pH due to the arginine and lysine residues.
SS-31 belongs to a class of mitochondria-targeted tetrapeptides designed with mitochondrial membrane-compatible structural features. The peptide’s small size and alternating aromatic-cationic motif (positive charge, aromatic ring, positive charge, aromatic ring) give it membrane-permeable characteristics. It has a structural affinity for cardiolipin, a phospholipid found almost exclusively in the inner mitochondrial membrane. SS-31 is supplied as a white to off-white lyophilized powder that is soluble in water.
This product is strictly for research purposes only. Not approved for human or animal use.
PubChem Reference: View compound profile on NIH PubChem
Formula: C₃₂H₄₉N₉O₅
Weight: 639.8 g/mol
CAS: 736992-21-5
Sequence: D-Arg-Dmt-Lys-Phe-NH₂
Form: White to off-white lyophilized powder
Solubility: Water-soluble
Storage: Keep refrigerated 36‑46 °F (2‑8 °C)
Stability: Stable when properly stored
| Weight | 10mg, 50mg |
|---|
Jason Park –
First time ordering SS-31 from this vendor. CAS number (736992-21-5) matched perfectly. Vacuum seal was intact, and shipping was faster than expected. Will definitely be a repeat customer
Dr. Michelle Reynolds –
Excellent quality SS-31. I’ve tested peptides from several suppliers, and PeptidesVital ranks among the best. The product is clean, soluble, and consistent. Free shipping over $200 is a great perk
Dr. Anita Desai –
Very happy with my purchase. SS-31 reconstituted crystal clear and showed no signs of peptide aggregation. The price is fair for the quality offered. Will recommend to colleagues
Dr. Elena Vasquez –
SS-31 arrived promptly and in excellent condition. The lyophilized powder reconstituted beautifully with no residue. Our mitochondrial research depends on high-purity peptides, and this batch delivered. Highly recommend PeptidesVital
Dr. Sophia Chen –
International shipping was smooth and well-tracked. SS-31 arrived in perfect shape with clear labeling. The peptide performed exactly as expected in our assays. PeptidesVital is now my go-to supplier
Christopher Lane –
PeptidesVital consistently delivers top-notch products. SS-31 arrived well-packaged with documentation. Our lab has seen reproducible results across multiple trials. Definitely ordering in bulk next time
Brian Foster –
Reliable vendor with great customer support. Highly satisfied
Kevin Anderson –
Ordered SS-31 for a new research protocol. Very impressed with the purity and packaging. Customer service answered my questions about storage quickly. Five stars will order again