Semax – a synthetic heptapeptide

Semax is a synthetic peptide composed of seven amino acid residues. Its amino acid sequence is written as Met–Glu–His–Phe–Pro–Gly–Pro, meaning MEHFPGP. In peptide nomenclature, it can be represented as H-Met-Glu-His-Phe-Pro-Gly-Pro-OH.

In laboratory materials, Semax can appear both as the peptide itself and in the form of Semax acetate. For Semax acetate, PubChem gives the molecular formula C₃₉H₅₅N₉O₁₂S and a molecular mass of approximately 874,0 g/mol. For this character, the CAS number is provided 2828433-33-4.

Basic information:

• name: Semax
• compound type: synthetic heptapeptide
• sequence: Met–Glu–His–Phe–Pro–Gly–Pro
• single-letter code: MEHFPGP
• the form available in our preparation: Semax acetate
• CAS Semax acetate: 2828433-33-4
• molecular formula of Semax acetate: C₃₉H₅₅N₉O₁₂S
• molecular mass of Semax acetate: approx. 874.0 g/mol
• material type: peptide reagent
• form: lyophilised material / powder

Selank – a synthetic heptapeptide

Selank is a synthetic peptide consisting of seven amino acids. Its sequence is Thr–Lys–Pro–Arg–Pro–Gly–Pro, abbreviated as TKPRPGP.

In laboratory applications, Selank is found, among other things, as Selank acetate, meaning a form associated with acetic acid. PubChem gives the molecular formula for Selank acetate C₃₅H₆₁N₁₁O₁₁, a molecular mass of approximately 811.9 g/moland CAS number 2703745-90-6.

Basic information:

• name: Selank
• compound type: synthetic heptapeptide
• sequence: Thr–Lys–Pro–Arg–Pro–Gly–Pro
• single-letter code: TKPRPGP
• form: Selank acetate
• CAS Selank acetate: 2703745-90-6
• empirical formula of Selank acetate: C₃₅H₆₁N₁₁O₁₁
• molecular mass: approx. 811.9 g/mol
• form: lyophilised peptide material

Epitalon / Epithalon – a synthetic tetrapeptide

Epitalon, also found under the name Epithalon, is a short synthetic tetrapeptide consisting of four amino acids.

The Epitalon sequence is:

Ala-Glu-Asp-Gly

so in single-letter code:

AEDG

A peptide can also be written as H-Ala-Glu-Asp-Gly-OH. PubChem gives the molecular formula for Epitalon as C₁₄H₂₂N₄O₉, molecular mass 390.35 g/mol and CAS number 307297-39-8.

Basic information:

• name: Epitalon
• Epithalon
• type of compound: synthetic tetrapeptide
• sequence: Ala–Glu–Asp–Gly
• single-letter code: AEDG
• peptide sequence: H-AEDG-OH
• CAS: 307297-39-8
• molecular formula: C₁₄H₂₂N₄O₉
• molecular mass: approx. 390.35 g/mol
• number of amino acids: 4

BPC-157 – synthetic pentadecapeptide

BPC-157 is a synthetic peptide composed of 15 amino acid residues, which is why it is classified as a pentadecapeptide.

Its sequence is:

Gly-Glu-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Ala-Gly-Leu-Val

Single-letter code:

GEPPPGKPADDAGLV

For the free form of BPC-157, the CAS number is commonly provided 137525-51-0, pattern C₆₂H₉₈N₁₆O₂₂₂ and a molecular mass of approximately 1419.5 g/mol.

However, BPC-157 can also exist in various chemical forms, including as BPC-157 acetate. For monoacetate, PubChem gives CAS 216441-37-1, pattern C₆₄H₁₀₂N₁₆O₂₄ and a mass of approximately 1,479.6 g/mol.

GHK-Cu – copper tripeptide complex

GHK-Cu, also known as Copper Tripeptide-1, is not an ordinary peptide in the strict chemical sense, but peptide-metal complex formed from the tripeptide GHK and copper ions.

The peptide part consists of three amino acids:

Gly–His–Lys

so:

GHK

Jon Cu²⁺ forms a coordination complex with the peptide.

Basic information:

• name: GHK-Cu
• synonym: Copper Tripeptide-1
• peptide part: glycyl-L-histidyl-L-lysine
• sequence: Gly–His–Lys
• single-letter code: GHK
• central metal: Cu²⁺
• type of compound: peptide-metal complex
• material type: copper(II) tripeptide complex

TB-500 / Thymosin Beta-4 – 43-amino acid peptide

Thymosin Beta-4 is a peptide consisting of 43 amino acid residues. In the research materials relating to this structure, the designation is also found TB-500.

The peptide has an acetylated N-terminus.

Basic chemical data:

• name: Thymosin Beta-4
• designation: TB-500
• type of compound: synthetic polypeptide
• number of amino acids: 43
• N-terminal modification: acetylation
• CAS: 77591-33-4
• molecular formula: C₂₁₂H₃₅₀N₅₆O₇₈S
• molecular mass: approximately 4,963.4 g/mol
• material type: synthetic peptide reagent
• form: lyophilised material / powder

Thymosin Beta-4 may constitute a laboratory material for structural analyses, purity testing, molecular weight determination and stability assessment of peptides with a larger number of amino acid residues.

CJC-1295 without DAC / Modified GRF (1-29)

CJC-1295 without DAC is a synthetic peptide also referred to as Modified GRF (1-29) or Mod GRF 1-29.

A peptide consists of 29 amino acid residues and does not contain a DAC group.

Basic chemical data:

• name: CJC-1295 without DAC
• synonym: Modified GRF (1-29)
• synonym: Mod GRF 1-29
• compound type: synthetic peptide
• number of amino acids: 29
• DAC group: none
• empirical formula given for Modified GRF (1-29): C₁₅₂H₂₅₂N₄₄O₄₂
• molecular mass: approximately 3,367.9 g/mol
• material type: synthetic peptide reagent

CJC-1295 without DAC can be used as a material for laboratory research involving structural identification, purity analysis, stability and physicochemical properties of peptides.

Data concerning CJC-1295 without DAC should be distinguished from data concerning CJC-1295 containing a DAC group, as these are structurally different materials.

Ipamorelin – a synthetic pentapeptide

Ipamorelin is a synthetic pentapeptide containing both standard and modified amino acid residues.

His structural formula is:

Aib-His-D-2-Nal-D-Phe-Lys-NH₂

where Aib stands for α-aminoisobutyric acid, while D-2-Nal denotes D-2-naphthylalanine.

Ipamorelin can occur both as a free peptide and in the acetate salt form known as Ipamorelin acetate.

Basic chemical data:

• name: Ipamorelin
• type of compound: synthetic pentapeptide
• structural sequence: Aib–His–D-2-Nal–D-Phe–Lys–NH₂
• number of tails: 5
• C-terminal modification: amidation
• CAS Ipamorelin: 170851-70-4
• formula of the free peptide: C₃₈H₄₉N₉O₅
• molecular mass: approximately 711.9 g/mol
• CAS Ipamorelin acetate: 1258196-85-8
• Ipamorelin acetate formula: C₄₀H₅₃N₉O₇
• molecular weight of Ipamorelin acetate: approximately 771.9 g/mol
• material type: synthetic peptide reagent

Ipamorelin can be used as a laboratory material for analyses concerning peptide structure, purity, stability, molecular mass and physicochemical characterisation.