Put two products side by side — what they are, their form, storage and price per fill size. Each row is named in plain words; where a technical term matters, it stands in small print below.
| Attribute |  Selank |  Semax |
|---|---|---|
| Order | View product – Selank | View product – Semax |
| Category | Peptides | Peptides |
| Kind of substanceCompound class | A single peptideSingle peptide | A single peptideSingle peptide |
| Substance groupStructural family differs | Tuftsin analogue | ACTH(4–7) analogue |
| Order of the amino acidsSequence differs | Thr-Lys-Pro-Arg-Pro-Gly-Pro | Met-Glu-His-Phe-Pro-Gly-Pro |
| Number of amino acidsSequence length | 7 | 7 |
| Chemical formulaMolecular formula differs | C33H57N11O9 | C37H51N9O10S |
| Weight of the moleculeMolecular weight differs | 751.88 g/mol | 813.94 g/mol |
| Registry numberCAS number differs | 129954-34-3 | 80714-61-0 |
| PurityPurity specification | ≥ 99.0 % | ≥ 99.0 % |
| Form | Powder in a vialLyophilisate in a vial | Powder in a vialLyophilisate in a vial |
| Storage | 2–8 °C, protect from light | 2–8 °C, protect from light |
| Fill sizes | 5 mg · 10 mg | 5 mg · 10 mg |
| Price per size |
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| Price per mg (calculated) |
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| Availability | In stock | In stock |
Prices per mg are calculated from price and fill size and are for comparison only.
All products are intended solely for laboratory research — not for use in humans or animals. The comparison shows material and catalogue data only and gives no guidance on use or dosing. Supplied only to qualified persons aged 18 or over.