Semax wholesale
Bulk peptide powder in 10-vial kits, for sale in the USA and abroad: price and cost per mg
About Semax
Heptapeptide, ACTH 4-7 analogue, MEHFPGP. 2 vial strengths, 5mg to 10mg, from $45.40 to $73.96 per box of ten, in US dollars. 1 strength is on the shelf, leaving in 1 to 2 business days; the other is on order, shipping in 2 weeks.
Documents Specification sheet Verify a batch How to read the certificate What the purity figure means The mass result, explained
Semax price per box, per vial and per mg
| Code | Strength | Per box | Per vial | Per mg | Stock | Order |
|---|---|---|---|---|---|---|
| XA5 | 5mg x 10 vials | $45.40 | $4.54 | $0.908 per mg | Low stock | |
| XA10 | 10mg x 10 vials | $73.96 | $7.40 | Lowest $0.740 per mg | Ships in 2 weeks |
On the shelf, leaving in 1 to 2 business days: XA5. The others are on order, shipping in 2 weeks.
Ships from the USA: to US addresses at our risk until delivered (DAP), freight included from $1,000 of goods; to Canada and most other countries through the desk · on-shelf lines leave in 1 to 2 business days, then 1 to 3 business days in US transit · COA per batch · proforma in USD, paid by card, Wise, e-Transfer (Canada), Bitcoin or USDT · prices revised
Stock key
- In stock
- on the shelf, leaves in 1 to 2 business days once payment clears
- Low stock
- on the shelf and running low; leaves in 1 to 2 business days
- Ships in 1 week
- on its way in
- Ships in 2 weeks
- on order
- Made to order, 4 weeks
- made for the order, about four weeks
- Special order, 50-box minimum
- brought in on a 50-box minimum rather than held in stock; the desk confirms the date before you pay
Prices are in US dollars per sealed box. Per unit is the box price over the milligrams, millilitres or units in the box.
Semax in brief
Semax comes in 2 strengths from 5mg to 10mg per vial, each a sealed box of ten, from $45.40 to $73.96 a box. Per mg the spread is narrow: XA10 (10mg x 10 vials) works out at $0.740 per mg against $0.908 per mg for XA5 (5mg x 10 vials), 19 percent less for the same mg, because the vial, the fill and the testing cost about the same whatever the vial holds.
One of the 2 strengths is on the shelf today (XA5) and leaves in 1 to 2 business days after payment clears; XA5 is running low. XA10 is on order and ships in 2 weeks.
What Semax is
Semax is a synthetic heptapeptide, MEHFPGP, average mass 813.9, made of the ACTH (4-7) sequence Met-Glu-His-Phe with the same Pro-Gly-Pro tail as Selank. Its methionine 1 is ACTH’s methionine 4, and its phenylalanine 4 is ACTH’s phenylalanine 7.
The N-terminal methionine is its weak point: it oxidises to the sulfoxide, and that sulfoxide is the related substance to expect for this line. Keep the powder cold and dark. The histidine at 3 gives it a mild pH dependence, and it is moderately hydrophilic.
Registry and identity
- The register entry for semax, UNII I5FAL2585H, CAS 80714-61-0, PubChem CID 9811102, names it from its parts, ACTH (4-7), Pro-Gly-Pro-, and the WHO Drug Dictionary spells the chain out as Met-Glu-His-Phe-Pro-Gly-Pro. FDA GSRS
- At high resolution semax's monoisotopic ions are at m/z 814.355 (1+) and 407.681 (2+), from a monoisotopic mass of 813.348; its one sulfur is the methionine's. PubChem, NIST
- Oxidised at the methionine, semax moves up by 15.995 to m/z 830.350 singly protonated. PubChem
- Semax and selank share the C-terminal Pro-Gly-Pro and nothing else: 813.9 against 751.9, 62.0 apart, and only semax contains sulfur. PubChem 9811102, PubChem 11765600
A listing in these registers identifies a substance; it is not an approval of this line.
Semax beside Selank and DSIP
Semax works out at $0.740 per mg at 10mg (XA10), its lowest by the single box. Its neighbours: Selank at $0.740 per mg at 10mg (SK10), 751.9 g/mol, set side by side in Semax vs Selank, tuftsin’s Thr-Lys-Pro-Arg where Semax has Met-Glu-His-Phe, then the Pro-Gly-Pro both end in, and no sulfur, so no sulfoxide to form; DSIP at $0.429 per mg at 15mg (DS15), 848.8 g/mol.
Reading a Semax certificate of analysis (COA)
Identity by mass. Average mass 813.9 (C37H51N9O10S). In electrospray the protonated ions come near m/z 814.9 (singly charged), m/z 408.0 (doubly charged); on our certificates the measured mass is matched to the calculated average mass, within about one unit.
- Oxidation: 1 methionine, which oxidises to the sulfoxide. The sulfoxide makes the chain 16 heavier.
- Deamidation: no asparagine or glutamine, so the +1 mass deamidation impurity common in longer peptides does not apply.
- Charge: near neutral pH about -1, acidic.
Worked out from what the sheet holds for this line; the batch certificate is the record. How to read one, and verify a batch number.
Buy Semax in bulk
Semax is sold in bulk by the sealed box of ten vials, and every account starts at list price. Two discounts can lower it, the size of one order (from $5,000 of goods) or the account’s tier (from lifetime paid spend), and the better one applies, never both. Priced below on XA10, 10mg x 10 vials, the best-priced strength.
| Discount | Earned by | Off goods | XA10 per box | Per mg |
|---|---|---|---|---|
| List | Every account, any order | none | $73.96 | $0.740 |
| Order size | $5,000 of goods in one order | 5% | $70.26 | $0.703 |
| Order size | $10,000 of goods in one order | 10% | $66.56 | $0.666 |
| Order size | $20,000 of goods in one order | 15% | $62.87 | $0.629 |
| Order size | $50,000 of goods in one order | 20% | $59.17 | $0.592 |
| Silver tier | $5,000 lifetime paid spend | 3% | $71.74 | $0.717 |
| Gold tier | $15,000 lifetime paid spend | 6% | $69.52 | $0.695 |
| Platinum tier | $50,000 lifetime paid spend | 10% | $66.56 | $0.666 |
| Diamond tier | $100,000 lifetime paid spend | 15% | $62.87 | $0.629 |
Thresholds in USD on goods, before freight; the discount is worked out at checkout and shown on the proforma.
Specification
The limits this compound is supplied to.
| Purity | ≥ 98.0 % (RP-HPLC, 220 nm, area normalisation) |
|---|---|
| Identity | ESI-MS against a calculated average mass of 813.9 |
| Any single related substance | ≤ 1.0 % |
| Water | ≤ 8.0 % (Karl Fischer) |
| Acetate | ≤ 15.0 % (ion chromatography), as the acetate salt |
| Residual solvents | Acetonitrile ≤ 410 ppm; TFA ≤ 1.0 % |
| Net content | Label claim ± 5 % |
| Closure | 2 mL glass vial, bromobutyl stopper, aluminium flip-off seal |
| Storage | −20 °C, dark and dry; brief ambient transit tolerated |
| Shelf life | 24 months from manufacture; retest date on the batch record |
Order Semax
One box of XA5, 5mg x 10 vials, $45.40 a box. Every strength.
Questions about Semax
Which line comes nearest to Semax in mass, and how do their formulas differ?
By printed molecular weight GHRP-2 is the nearest, 818.0 against Semax’s 813.9, so 4.1 heavier; next comes Dermorphin, 802.9, which is 11.0 lighter. The two near-equal masses are built from different atoms. Both formulas hold nine nitrogens, but GHRP-2’s C45H55N9O6 has eight more carbons and four more hydrogens, where Semax’s C37H51N9O10S has four more oxygens and the one sulfur, its methionine’s. GHRP-2 is also a shorter chain, six residues ending in a lysine amide, where Semax runs to seven.
How much does Semax cost?
From $45.40 a sealed box of 10 vials, up to $73.96 for the largest strength sold singly, which works out at $0.740 per mg at its best-priced size. To a US address, freight is included from $1,000 of goods; below that it is the carrier’s rate for the carton or a flat $35.00, and to another country the desk quotes it; either way the figure is on the proforma before you pay. Every strength and its price per vial is in this page’s price table.
Which Semax size is cheapest per mg?
XA10, 10mg x 10 vials, at $0.740 per mg, which is 19 percent less per mg than XA5, at $0.908 per mg. Larger vials cost less per mg across this range, so match the vial to the size of the work first, then compare per mg.
Can I buy a single vial of Semax?
No. One sealed box of ten vials is the smallest quantity of a regular line; for Semax that is XA5, 5mg x 10 vials, at $45.40. A first order must reach $100 of goods, so XA5 alone takes three boxes ($136.20) or one box beside other lines. A box is sealed at fill with its batch number on it, and splitting one would break the link between the vials and their certificate.
Which Semax strengths are in stock today?
XA5 at $45.40 a box (running low). XA10 is on order and ships in 2 weeks.
How is Semax stored?
At minus 20 degrees Celsius, dark and dry. Lyophilised powder tolerates a short spell at ambient temperature in transit, which is why boxes ship without ice. Storage and handling.
What is in a box of Semax?
Ten sealed vials of one strength, each labelled with the product code, the strength and the batch number; the trade also calls a box a 10-vial kit. Semax is supplied as a powder in a sealed glass vial and in no other presentation. Boxes are not split.
Is a certificate of analysis (COA) provided for Semax?
Yes. For Semax the batch certificate reports its purity, net content and identity by mass spectrometry. The other lines on this page are the specification it is made to, and the desk answers for them on a particular batch. The certificate is sent with the shipment, and again on request, and any batch number can be verified on the certificate page.
Is this for human use?
No. Everything here is supplied for laboratory research only, to trade accounts, and is not for human or animal consumption. The research-use page sets out who can buy and what is not sold.