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Liquid Sprays · SKU NS-SEM-10
N-Acetyl Semax amidate liquid spray
A 10 mL metered research solution of N-acetyl Semax amidate at 1 mg/mL, delivering 100 mcg per actuation. For laboratory research use only.
$90 10 mg · free shipping over $1,000
In stock · ships same day on orders before 2pm ET
Format10 mL metered atomiser
Total content10 mg NA-Semax amidate
Concentration1 mg/mL
Per actuation100 mcg nominal
Storage2-8°C, protect from light
UseLaboratory research only
CertificateNot published for this line. Our vial lots carry one; this format does not yet. See the library
Buying in quantity?
Wholesale pricing starts at 25 vials per SKU, with net-30 terms for verified institutions. It is quoted per order rather than applied in the cart — ask for a wholesale quote.
Ships same day on orders before 2pm ET. For laboratory use only.
What is it for?
N-acetyl Semax amidate is Semax with both termini modified: an acetyl group on the N-terminal amine and an amide in place of the C-terminal carboxylic acid. The heptapeptide between them, Met-Glu-His-Phe-Pro-Gly-Pro, is unchanged. The two caps add about 41 mass units, taking the molecule from Semax's 813.9 to 855.0, and remove a positive charge at one end and a negative charge at the other. Both block the exopeptidases that trim unmodified peptides from their ends, which is the reason the modified form exists. Because the mass and charge differ, the two are not interchangeable in a methods section, and the published literature on Semax was done on the unblocked peptide. Supplied as 10 mg in 10 mL at 1 mg/mL, delivering a nominal 100 micrograms per actuation.
What are the identifiers for N-Acetyl Semax amidate?
| Molecular formula | C39H54N10O10S |
| Molecular weight | 855.0 g/mol |
| Residues | 7 |
| PubChem CID | 172638603 |
Frequently asked questions
How is N-acetyl Semax amidate different from Semax?
Two modifications, no change to the sequence. The N-terminus carries an acetyl group (+42.04) and the C-terminus an amide in place of the acid (-0.98), so the mass moves from 813.9 to 855.0 and both terminal charges are removed. The comparison post works through what each change does.
What is its molecular formula and mass?
C39H54N10O10S, 855.0 g/mol, PubChem CID 172638603. Semax itself is C37H51N9O10S at 813.9, CID 9811102. No CAS number has been confirmed for the acetyl-amidate form, so that field is left blank rather than filled in.
Is there a certificate for this lot?
No certificate for the current solution has been published in the COA library yet. Email support with the lot number printed on the bottle and we will send the report that matches it.
Why is it supplied at 1 mg/mL?
Because a 10 mL metered atomiser delivering about 100 microlitres per actuation puts 100 micrograms in each actuation at that concentration. The total content is 10 mg.
How should it be stored?
At 2 to 8 degrees Celsius, protected from light. It is a solution, not a lyophilized powder, so it does not get the 24-month sealed-vial window a dry peptide does. The methionine in the sequence is the oxidation-prone residue.
Is this for human use?
No. Every product on this site is sold for in-vitro laboratory research only and is not for human or animal consumption, diagnostic or therapeutic use.
Which guides use it?
- Concentration and syringe-unit table
- Bacteriostatic water and benzyl alcohol in cell work
- Storage guide
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