'%2F%3E%0A%20%20%3Cellipse%20cx%3D'150'%20cy%3D'258'%20rx%3D'62'%20ry%3D'13'%20fill%3D'%230d1b2a'%20opacity%3D'.13'%2F%3E%0A%20%20%3Cpath%20d%3D'M116%2084%20q0%20-4%204%20-4%20h60%20q4%200%204%204%20v150%20q0%2014%20-14%2014%20h-40%20q-14%200%20-14%20-14%20z'%20fill%3D'url(%23pp80glass)'%20stroke%3D'%23b3c3d1'%20stroke-width%3D'1'%2F%3E%0A%20%20%3Cpath%20d%3D'M120%20196%20q30%20-10%2060%200%20v14%20q-30%208%20-60%200%20z'%20fill%3D'%23fdfdfd'%2F%3E%0A%20%20%20%20%20%20%3Cellipse%20cx%3D'150'%20cy%3D'196'%20rx%3D'30'%20ry%3D'5'%20fill%3D'%23f1f4f7'%2F%3E%0A%20%20%20%20%20%20%3Cpath%20d%3D'M120%20198%20q30%20-8%2060%200%20v10%20q-30%207%20-60%200%20z'%20fill%3D'%23e9edf2'%20opacity%3D'.6'%2F%3E%0A%20%20%3Crect%20x%3D'124'%20y%3D'92'%20width%3D'7'%20height%3D'150'%20rx%3D'3.5'%20fill%3D'%23ffffff'%20opacity%3D'.85'%2F%3E%0A%20%20%3Crect%20x%3D'168'%20y%3D'96'%20width%3D'4'%20height%3D'140'%20rx%3D'2'%20fill%3D'%23ffffff'%20opacity%3D'.5'%2F%3E%0A%20%20%3Crect%20x%3D'126'%20y%3D'66'%20width%3D'48'%20height%3D'20'%20rx%3D'3'%20fill%3D'%232b2f36'%2F%3E%0A%20%20%3Crect%20x%3D'122'%20y%3D'80'%20width%3D'56'%20height%3D'8'%20rx%3D'2'%20fill%3D'%231f2227'%2F%3E%0A%20%20%3Crect%20x%3D'120'%20y%3D'48'%20width%3D'60'%20height%3D'26'%20rx%3D'5'%20fill%3D'url(%23pp80cap)'%20stroke%3D'%239aa7b4'%20stroke-width%3D'.6'%2F%3E%0A%20%20%3Crect%20x%3D'120'%20y%3D'52'%20width%3D'60'%20height%3D'2.4'%20fill%3D'%23ffffff'%20opacity%3D'.6'%2F%3E%0A%20%20%3Cellipse%20cx%3D'150'%20cy%3D'48'%20rx%3D'17'%20ry%3D'4.5'%20fill%3D'%23c9d4e0'%2F%3E%0A%20%20%3Cellipse%20cx%3D'150'%20cy%3D'47'%20rx%3D'11'%20ry%3D'3'%20fill%3D'%230077b6'%2F%3E%0A%20%20%3Cg%3E%0A%20%20%20%20%3Crect%20x%3D'118'%20y%3D'150'%20width%3D'64'%20height%3D'80'%20rx%3D'4'%20fill%3D'%23ffffff'%20opacity%3D'.96'%2F%3E%0A%20%20%20%20%3Crect%20x%3D'118'%20y%3D'150'%20width%3D'64'%20height%3D'80'%20rx%3D'4'%20fill%3D'none'%20stroke%3D'%23dde6ef'%20stroke-width%3D'.8'%2F%3E%0A%20%20%20%20%3Crect%20x%3D'118'%20y%3D'150'%20width%3D'64'%20height%3D'17'%20rx%3D'4'%20fill%3D'%230d1b2a'%2F%3E%0A%20%20%20%20%3Ctext%20x%3D'150'%20y%3D'162'%20text-anchor%3D'middle'%20font-family%3D'Georgia%2Cserif'%20font-size%3D'8.2'%20font-weight%3D'bold'%20fill%3D'%23ffffff'%3EPure%3Ctspan%20fill%3D'%2300c8b4'%3EPeptides%3C%2Ftspan%3E%3C%2Ftext%3E%0A%20%20%20%20%3Ctext%20x%3D'123'%20y%3D'181'%20font-family%3D'Arial%2Csans-serif'%20font-size%3D'7.4'%20font-weight%3D'bold'%20fill%3D'%230d1b2a'%3ESemax%205mg%3C%2Ftext%3E%0A%20%20%20%20%3Ctext%20x%3D'123'%20y%3D'194'%20font-family%3D'Arial%2Csans-serif'%20font-size%3D'10.5'%20font-weight%3D'bold'%20fill%3D'%230077b6'%3E5MG%3C%2Ftext%3E%0A%20%20%20%20%3Cline%20x1%3D'123'%20y1%3D'199'%20x2%3D'177'%20y2%3D'199'%20stroke%3D'%23e6ecf2'%20stroke-width%3D'1'%2F%3E%0A%20%20%20%20%3Ctext%20x%3D'123'%20y%3D'209'%20font-family%3D'monospace'%20font-size%3D'5'%20fill%3D'%236b7e96'%3ELyophilised%20%26%23183%3B%20Purity%20%26gt%3B99%25%3C%2Ftext%3E%0A%20%20%20%20%3Ctext%20x%3D'123'%20y%3D'217'%20font-family%3D'monospace'%20font-size%3D'5'%20fill%3D'%236b7e96'%3EResearch%20Use%20Only%3C%2Ftext%3E%0A%20%20%20%20%3Ctext%20x%3D'123'%20y%3D'225'%20font-family%3D'monospace'%20font-size%3D'4.6'%20fill%3D'%23a9b8c8'%3EEST.%202012%20%26%23183%3B%20C37H51N9O10S%3C%2Ftext%3E%0A%20%20%3C%2Fg%3E%0A%3C%2Fsvg%3E)
Semax
What is Semax?
Semax is a synthetic heptapeptide (seven amino acids) with the sequence Met-Glu-His-Phe-Pro-Gly-Pro (MEHFPGP), structurally related to a fragment of ACTH(4-10). It is supplied as a lyophilised powder for laboratory research.
PurePeptides offers Semax at >99% purity strictly for in-vitro research use. This page describes its chemical identity and handling only.
Research context
Semax appears in neuropeptide research literature in in-vitro and preclinical studies. PurePeptides supplies it solely as a research material and makes no claim regarding outcomes, efficacy, or suitability for any human or animal application.
Further reading
For a deeper look at Semax — chemical identity, how it is handled and quantified in research protocols, findings reported in the literature, and how it compares with related peptides — see our Semax Research Guide.
Specifications
| Product | Semax |
| Molecular formula | C37H51N9O10S |
| Classification | Synthetic heptapeptide (ACTH(4-10) fragment analogue) |
| Sequence | Met-Glu-His-Phe-Pro-Gly-Pro (MEHFPGP) |
| Molecular weight | ~813.9 g/mol |
| CAS number | 80714-61-0 |
| Solubility | Water-soluble |
| Purity | >99% |
| Physical form | Lyophilised powder |
| Storage | -20C lyophilised; 2-8C reconstituted |
| Intended use | Research use only - not for human consumption |
Reconstitution & storage (laboratory handling)
Store the lyophilised vial at -20C, protected from light and moisture, until use. For laboratory reconstitution, bacteriostatic water is commonly used as a solvent. Once reconstituted, keep the solution refrigerated at 2-8C and minimise freeze-thaw cycles. Use our peptide reconstitution calculator to determine concentration and volumes. This section describes laboratory handling only.
Frequently asked questions
Semax is a synthetic heptapeptide (sequence MEHFPGP) related to a fragment of ACTH(4-10), supplied as a lyophilised powder for research use only.
It is supplied at greater than 99% purity as a lyophilised powder. Contact us for certificate of analysis availability for the current batch.
Store the lyophilised powder at -20C. It is commonly reconstituted with bacteriostatic water; once in solution, store refrigerated at 2-8C and minimise freeze-thaw cycles.
We supply Semax strictly as a research chemical for laboratory use only. It is the purchaser's responsibility to ensure compliance with the laws and regulations applicable in their jurisdiction.
Yes. Orders placed before 3 PM on a business day (Mon-Fri) are dispatched the same day with tracked, insured delivery across the UK and Europe.
No. All products are sold strictly for laboratory and research purposes only. They are not for human or animal consumption and are not medical products.