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Neural · Synthetic heptapeptide, ACTH(4-10) analog

Semax

10 mg · 7 residues · 813.93 Da

$60.00per vial

Size$6.00/mg

10 mg Lyophilised · sealed vial

Quantity10+ of one compound: 40% off

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  • 7 tests, every lotIndependent lab
  • 2 Day ShippingFrom the USA, tracked
  • Encrypted checkoutSSL secured
  • PassedSterility & endotoxin
  • PassedIdentity & purity, 99.35%

For in-vitro research use only. Not for human or animal use.

Researchers also add

01Verified test results

Every lot, independently tested.

Semax lot SA-SMX-2611 was tested Oct 12, 2026 at an independent laboratory before it shipped. Every value is printed against its limit, so a pass means something.

Independent labIndependent third-party laboratorySample data

Certificate of analysis

99.35%

Purity by HPLC

Profile drawn from the reported purity

Lot
SA-SMX-2611
Tested
Oct 12, 2026
Labelled
10 mg
Measured
10.18 mg
7 of 7 within limitsQR on every label
Full release panel7 passed · 0 flagged
  • PurityHPLC · limit ≥ 99.0%99.35%Pass
  • IdentityMass spectrometry · limit 813.9 ± 1.0 Da813.9 DaPass
  • Net contentQuantitative HPLC · limit ≥ 10 mg10.18 mgPass
  • EndotoxinLAL assay · limit ≤ 0.5 EU/mg0.09 EU/mgPass
  • SterilityMembrane filtration · limit No growthNo growthPass
  • Heavy metalsICP-MS · limit ≤ 10 ppm total0.5 ppmPass
  • MoistureKarl Fischer · limit ≤ 8.0%3.7%Pass

Purity by HPLC, identity by mass spectrometry, net content by quantitative HPLC, endotoxin by LAL, sterility by membrane filtration, heavy metals by ICP-MS and moisture by Karl Fischer. Report SA-SMX-2611-01, Oct 12, 2026. Open the lot record.

Every lot on record

Open any lot's certificate. Your order ships from the current released lot, and its QR code opens this record.

All 2 Semax lots
Latest
Semax 10 mgLot SA-SMX-2611

99.35%

HPLC purity

Labelled10 mgMeasured10.18 mg+1.8%
  • IdentityConfirmed
  • EndotoxinPass
  • SterilityNo growth
  • Heavy metalsPass

Tested Oct 12, 2026 · 7/7 assays · sample

Semax 10 mgLot SA-SMX-2609

99.18%

HPLC purity

Labelled10 mgMeasured10.11 mg+1.1%
  • IdentityConfirmed
  • EndotoxinPass
  • SterilityNo growth
  • Heavy metalsPass

Tested Sep 4, 2026 · 7/7 assays · sample

02Verify your vial

Three steps from label to lab.

  1. 01Scan the label

    Every vial label carries a QR code. Point your phone camera at it.

  2. 02Land on its record

    The code opens that lot's certificate with every assay value. No phone? Type the lot from your packing slip on Verify a lot.

  3. 03Check it with the lab

    Each signed certificate links to the lab's own verification page, so the report can be confirmed independently of us.

03Analytical identity

Semax, molecule by molecule.

Studied in neuropeptide-signalling models in vitro.

CompoundSynthetic heptapeptide, ACTH(4-10) analog
FormulaC37H51N9O10S
Molecular weight813.93 Da
Residues7
FormLyophilised powder, 10 mg
StorageSealed at -20 °C, away from light and moisture

Sequence

  1. Met1
  2. Glu2
  3. His3
  4. Phe4
  5. Pro5
  6. Gly6
  7. Pro7

Side-chain composition

  • Nonpolar571%
  • Basic (+)114%
  • Acidic (-)114%
C37H51N9O10S813.93 Da
Drag to turn
Residues · hover to locate7 residues
Heavy atoms
57
Bonds
60
Composition
C37 N9 O10 S1
Rings
4
Metal centre
None
Chain length
7 residues

Every heavy atom is placed from the sequence with ideal bond lengths and angles, so the connectivity is exact. The pose is idealised (an extended chain) and is not a measured conformation. Identity for each lot is confirmed on its certificate.

Structure viewer

04In the lab

How Semax is studied to work.

Semax binds specific, calcium-dependent sites in basal forebrain membranes, but no receptor has been confirmed. In laboratory research it raises BDNF and TrkB activity in brain tissue and binds copper(II).

Compound

SemaxSynthetic ACTH(4-10) analog, Met-Glu-His-Phe-Pro-Gly-Pro
  1. Specific binding

    Basal forebrain

    • Binding site
    • BDNF

    Endpoint studied

    More BDNF protein

    Labeled Semax bound specifically and reversibly (KD 2.4 nM); BDNF protein rose in basal forebrain at 3 h.

    Dolotov 2006 · PMID 16635254
  2. BDNF and TrkB

    Hippocampal tissue

    • BDNF
    • TrkB

    Endpoint studied

    TrkB phosphorylation

    BDNF protein rose 1.4-fold and TrkB tyrosine phosphorylation 1.6-fold; BDNF exon III mRNA rose 3-fold.

    Dolotov 2006 · PMID 16996037

Pathways as reported in the cited laboratory studies. For in-vitro research use only.

05Research history

24 years in the literature.

4 milestones, each linked to its PubMed record

  1. 1991

    Biochemical and Biophysical Research Communications

    Stability in serum

    Serum breakdown of ACTH(4-10) and Semax is mapped; aminopeptidases trim both, but Semax is more stable against the other enzymes.

    PubMed · PMID 1851003
  2. 2001

    Neuroscience Letters

    Neurotrophin genes switch on

    In basal forebrain glial cultures, BDNF mRNA rose eight-fold and NGF mRNA five-fold 30 minutes after Semax.

    PubMed · PMID 11457573
  3. 2006

    Journal of Neurochemistry

    Specific binding sites

    Tritium-labeled Semax binds basal forebrain membranes with nanomolar affinity, and BDNF protein rises there within 3 hours.

    PubMed · PMID 16635254
  4. 2015

    Journal of Inorganic Biochemistry

    Copper binding

    Semax binds copper(II) in a 4N planar mode and lowers copper-induced toxicity in SH-SY5Y and RBE4 cell lines.

    PubMed · PMID 25310602 Latest

Laboratory research only, cited for research context. Not a claim about use in people.

06Questions

Frequently asked questions.

About Semax, its certificate and your order.

Need assistance? We’re here to help.

Email [email protected], Monday to Friday. A person replies within one business day.

01Which lot will I receive?

The current released lot, SA-SMX-2611. Scan the QR code on the vial label to open its certificate. The lot number is also on your packing slip, and the full certificate is here.

02Is the certificate real, and can I check it?

Every certificate is issued by an independent laboratory. Each lot has its own public record page with every assay value, and a link to verify the report on the lab's own site once the signed PDF is posted.

03Why does net content show more than 10 mg?

Vials are filled slightly over the labelled mass so that every vial meets it. Net content is measured on each lot and published as a number, not a pass.

04What if the vial arrives without vacuum or damaged?

Email [email protected] within 7 days with your order number and a photo and we will replace it.

05When will it ship?

Orders by 2 PM ET on a weekday ship the same day, with tracking emailed when the label prints.

06Is Semax for human use?

No. It is sold strictly for in-vitro laboratory research and is not for human or animal use of any kind.

07Complete the box

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3+ vials 25% off and 5+ vials 30% off across any mix, 10+ of one compound 40% off, 50+ of one compound 50% off.

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