Semax vs NA-Semax

Molecular weights differ by 41.10 g/mol.

Sequence

Semax: Met-Glu-His-Phe-Pro-Gly-Pro
NA-Semax: not published

Residues (from sequence)

Semax: 7
NA-Semax: not published

Molecular formula

Semax: C37H51N9O10S
NA-Semax: C39H54N10O10S

Molecular weight (g/mol)

Semax: 813.9
NA-Semax: 855

CAS number

Semax: 80714-61-0
NA-Semax: 2920938-90-3

PubChem record

Semax: ACTH (4-7), Pro-Gly-Pro-
NA-Semax: N-acetyl semax amidate

Form

Semax: Lyophilized powder
NA-Semax: Lyophilized powder

Storage (as listed)

Semax: −20°C, desiccated
NA-Semax: −20°C, desiccated

Vial sizes

Semax: 5 mg
NA-Semax: 30 mg

Reports

Semax: Semax: Janoshik, 2026-05-28, 99.184%
NA-Semax: NA-Semax: Janoshik, 2026-05-28, 99.424%