Per vial, USD
| Fill weight | 100+ | 1,000+ | 2,500+ | Order |
|---|---|---|---|---|
| 10 mg | $11.00 | $9.24 | $9.02 |
Ordering at volume
Seven residues is a short chain, and that governs most of what a thousand vials of Semax costs to put in front of you. Solid-phase synthesis adds one residue at a time, so a heptapeptide comes off the line in a fraction of the couplings a thirty- or forty-residue analogue needs, and the active material in a single vial is a minor part of the finished unit rate. Glass, stopper, crimp, label and the freeze-drying slot carry more of it than the peptide does.
That changes how the published ladder behaves. Where a long acylated peptide steps down sharply as quantity rises, a chain this short flattens out, because the fixed cost of filling and finishing a vial barely shrinks between one break and the next. Buyers chasing a real step usually get more out of consolidating a year of demand into a single purchase order than out of splitting the same total across four quarters. The pricing page has the ladder.
Semax is held in one fill only, so the whole quantity sits on a single line and its break is decided by that count alone; nothing else on the order moves it up or down. Standard-depth material ships from California Monday to Friday. On a first order, read the code printed on the vial against the line on the packing list, and the lot number against the certificate, before the balance goes into stores.
Specification
- Compound
- Semax
- CAS number
- 80714-61-0
- Formula
- C₃₇H₅₁N₉O₁₀S
- Molecular weight
- ~813 g/mol
- Form
- Lyophilized powder, sealed vial
- Fill weights
- 10 mg
- Stock depth
- Standard catalog — Stocked in California. Each compound reaches its own tier break.
- Intended use
- Laboratory research only. Not for human or veterinary use.
What the material is
Semax is a short synthetic peptide of seven residues, written Met-Glu-His-Phe-Pro-Gly-Pro. The only sulfur atom in the molecule sits on the methionine at the amino end, and the two prolines with a glycine between them close the chain at the carboxyl end. The catalog figure of about 813 g/mol is consistent with seven residues of that composition and no further modification.
It arrives as a pale off-white lyophilized solid, crimp-sealed in clear glass over a butyl closure. Peptides of this size often dry to a thin film or a light flake rather than a tall disc at the base of the vial. That is the normal presentation at this fill and says nothing about how the lyophilization cycle ran. The stopper and the crimp are what keep the material dry, so both are worth a look before a carton goes to the shelf.
Storage and reconstitution
Keep unopened vials in a −20 °C freezer, dry and protected from light. Brief warming on the road is expected; what keeps the solid sound is an intact crimp, not the temperature the carton saw in transit. Let a cold vial warm through before its seal is broken, so that room air leaves no moisture on the solid.
The powder takes up sterile water, or a buffer chosen for the assay, and clears quickly with nothing left in suspension. Once dissolved, keep it cold and dark, and count the working life in days rather than months. Divide a vial into single-draw portions where it will be used more than once: freeze-thaw cycling is the commonest reason a dissolved short peptide stops behaving as it did on day one.
Buying questions
Why does the per-vial rate on Semax fall less between tiers than it does on a larger peptide?
Because most of what you are buying is the vial, not the peptide inside it. A seven-residue chain at this fill uses very little active material, so filling, sealing and freeze-drying dominate the unit cost, and those are close to constant however many vials you take. The ladder is real, but it is shallower here than on a long chain.
Is Semax available in a fill other than 10 mg?
Not from stock — it is held in one fill only. That keeps the arithmetic simple, since the entire Semax quantity sits on one line and reaches its own break on that count. If a different fill would suit your run better, raise it when you ask for a quote and we will tell you what can be scheduled.
What should the solid look like inside a Semax vial?
Usually a thin white to off-white film or a scatter of light flakes rather than a formed disc. There is not enough material at this fill to build a deep cake, so appearance varies more than it does on a heavier line. Solid that has gone glassy, sticky or wet is worth photographing next to its label before anything else is unpacked.
Does Semax ship from stock?
It is standard catalog stock, held in California, so the date is set by picking and freight rather than by a production run. A written quote usually comes back the same business day; what we need from you is listed in how to order.
