BPC-157
Body Protection Compound-157
- Formula
- C62H98N16O22
- Mol. weight
- 1,419.5 Da
- CAS
- 137525-51-0
- Structure
- Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val (pentadecapeptide)
- Mechanism
- Synthetic gastric pentadecapeptide (BPC) fragment
Research Hub — Compound Reference Library
A reference entry for every compound Peptide.Express supplies, grouped by the research area it belongs to rather than alphabetically. Each entry carries the molecular characterisation — formula, molecular weight, sequence, CAS number where one is established — alongside the mechanism class and a link to the full compound page with its citations and specifications.
Where a value is genuinely unknown or has not been publicly disclosed, it is marked as such rather than filled with an approximation. Retatrutide is the clearest example: Eli Lilly has not released the primary structure, so no formula appears for it here.
Tissue Repair & Regeneration
Compounds studied for angiogenesis, cell migration and extracellular matrix remodeling in preclinical repair models.
TB-500
Synthetic Thymosin β-4 (Tβ4)
- Formula
- C212H350N56O78S
- Mol. weight
- 4,963.4 Da
- CAS
- 77591-33-4
- Structure
- Synthetic Thymosin β-4 (43 aa, Ac-SDKPDMAEIEKFDKSKLKTETQEKNPLPSKETIEQEKQAGES) containing the LKKTET actin-binding motif
- Mechanism
- Actin-sequestering / Thymosin β-4-related peptide
Wolverine Blend
BPC-157 + TB-500
- Structure
- Two-peptide blend: BPC-157 + TB-500
- Mechanism
- Dual-mechanism tissue-repair peptide formulation
KLOW Blend
KPV + GHK-Cu + BPC-157 + TB-500
- Structure
- Four-peptide blend: KPV + GHK-Cu + BPC-157 + TB-500
- Mechanism
- Four-peptide regenerative research formulation
BPC-157 + TB-500 Kit
Separate-Vial Wolverine Stack Components
GHK-Cu
Glycyl-L-Histidyl-L-Lysine Copper Complex
- Formula
- C14H24CuN6O4
- Mol. weight
- 403.9 Da
- CAS
- 89030-95-5
- Structure
- Gly-His-Lys copper(II) complex (tripeptide-copper)
- Mechanism
- Copper(II)-binding tripeptide complex
Metabolic & Incretin Receptor Research
Incretin receptor agonists and mitochondrial metabolic signaling compounds used in energy-balance and glucose-homeostasis models.
Retatrutide
Triple GLP-1R / GIPR / GCGR Agonist (LY3437943)
- Mol. weight
- 4,731 Da
- CAS
- 2381089-83-2
- Structure
- Synthetic 39-amino-acid GIP/GLP-1/glucagon triple agonist (fatty-acylated)
- Mechanism
- Triple GLP-1 / GIP / glucagon receptor agonist
Tirzepatide (GLP-TIRZ)
Dual GLP-1R / GIPR Agonist (LY3298176)
- Formula
- C225H348N48O68
- Mol. weight
- 4,813.5 Da
- CAS
- 2023788-19-2
- Structure
- 39-amino-acid dual GIP/GLP-1 agonist with C20 fatty diacid at Lys20
- Mechanism
- Dual GLP-1 / GIP receptor agonist
MOTS-c
Mitochondrial Open Reading Frame of the 12S rRNA Type-C
- Formula
- C101H152N28O22S2
- Mol. weight
- 2,174.6 Da
- CAS
- 1627580-64-6
- Structure
- Mitochondrial-derived 16-amino-acid peptide (MRP encoded in 12S rRNA)
- Mechanism
- Mitochondrial-derived peptide (AMPK pathway)
Mitochondrial Fuel Stack
MOTS-c + NAD+ Separate-Vial Research Kit
Growth Hormone Axis
GHRH analogs and ghrelin-receptor secretagogues studied on the hypothalamic-pituitary somatotropic axis.
Tesamorelin
Synthetic GHRH Analog
- Formula
- C221H366N72O67S
- Mol. weight
- 5,135.9 Da
- CAS
- 218949-48-5
- Structure
- Stabilized 44-amino-acid GHRH analog (trans-3-hexenoyl-modified)
- Mechanism
- Long-acting GHRH analog
Sermorelin
GHRH(1-29)NH2 Analog
- Formula
- C149H246N44O42S
- Mol. weight
- 3,357.9 Da
- CAS
- 86168-78-7
- Structure
- GRF (1-29) NH2 — 29-amino-acid GHRH analog
- Mechanism
- GHRH (1-29) analog
Ipamorelin
Selective GHSR-1a Agonist
- Formula
- C38H49N9O5
- Mol. weight
- 711.85 Da
- CAS
- 170851-70-4
- Structure
- Aib-His-D-2-Nal-D-Phe-Lys-NH2 (pentapeptide)
- Mechanism
- Selective ghrelin / GH-secretagogue receptor agonist
CJC-1295 + Ipamorelin (No DAC)
Mod GRF(1-29) + Ipamorelin Dual GHRH-R / GHSR-1a Stack
- Formula
- C152H252N44O42
- Mol. weight
- 3,367.9 Da
- CAS
- 863288-34-0
- Structure
- Modified GRF (1-29) — 29-amino-acid GHRH analog without Drug Affinity Complex
- Mechanism
- GHRH analog (short-acting, no albumin-binding DAC)
Longevity & Mitochondrial Research
Telomerase, sirtuin and inner-mitochondrial-membrane compounds studied in cellular senescence and bioenergetics models.
Epithalon
Synthetic AEDG Tetrapeptide (Ala-Glu-Asp-Gly)
- Formula
- C14H22N4O9
- Mol. weight
- 390.3 Da
- CAS
- 307297-39-8
- Structure
- Ala-Glu-Asp-Gly (tetrapeptide)
- Mechanism
- Synthetic tetrapeptide (telomerase-activation research)
SS-31
Elamipretide — Cardiolipin-Binding Szeto-Schiller Tetrapeptide
- Formula
- C32H49N9O5
- Mol. weight
- 639.8 Da
- CAS
- 736992-21-5
- Structure
- D-Arg-2',6'-Dmt-Lys-Phe-NH2 (cell-permeable tetrapeptide)
- Mechanism
- Cardiolipin-binding inner-mitochondrial-membrane protective peptide
NAD+
Nicotinamide Adenine Dinucleotide — Dinucleotide Coenzyme
- Formula
- C21H27N7O14P2
- Mol. weight
- 663.4 Da
- CAS
- 53-84-9
- Mechanism
- Dinucleotide redox coenzyme and sirtuin/PARP substrate (not a peptide)
GHK-Cu
Glycyl-L-Histidyl-L-Lysine Copper Complex
- Formula
- C14H24CuN6O4
- Mol. weight
- 403.9 Da
- CAS
- 89030-95-5
- Structure
- Gly-His-Lys copper(II) complex (tripeptide-copper)
- Mechanism
- Copper(II)-binding tripeptide complex
Neuroendocrine & Reproductive Signaling
Melanocortin agonists, GPR54 ligands, sleep-architecture neuropeptides and HPG-axis modulators.
PT-141
Cyclic heptapeptide melanocortin receptor agonist (MC3R/MC4R)
- Formula
- C50H68N14O10
- Mol. weight
- 1,025.2 Da
- CAS
- 189691-06-3
- Structure
- Ac-Nle-cyclo(Asp-His-D-Phe-Arg-Trp-Lys)-OH (melanocortin agonist)
- Mechanism
- Melanocortin receptor agonist
Melanotan II
Non-selective melanocortin receptor agonist (MC1R/MC3R/MC4R/MC5R)
- Formula
- C50H69N15O9
- Mol. weight
- 1,024.2 Da
- CAS
- 121062-08-6
- Structure
- Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2 (cyclic heptapeptide)
- Mechanism
- Non-selective melanocortin receptor agonist (MC1R/MC3R/MC4R/MC5R)
Kisspeptin-10
GPR54 (KISS1R) agonist decapeptide
- Formula
- C63H83N17O14
- Mol. weight
- 1,302.5 Da
- CAS
- 374675-21-5
- Structure
- Tyr-Asn-Trp-Asn-Ser-Phe-Gly-Leu-Arg-Phe-NH2 (decapeptide, KP-10)
- Mechanism
- GPR54 / KISS1R agonist
DSIP
Endogenous nonapeptide (delta sleep-inducing peptide)
- Formula
- C35H48N10O15
- Mol. weight
- 848.8 Da
- CAS
- 62568-57-4
- Structure
- Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu (WAGGDASGE, nonapeptide)
- Mechanism
- Endogenous nonapeptide studied in slow-wave sleep regulation
Enclomiphene
Small-molecule selective estrogen receptor modulator (SERM)
- Formula
- C26H28ClNO
- Mol. weight
- 405.96 Da
- CAS
- 7599-79-3
- Mechanism
- Selective estrogen receptor modulator (trans-isomer of clomiphene)
Reconstitution & Laboratory Supplies
Diluents and handling materials required to bring lyophilized research compounds into solution.
Bacteriostatic Water
Sterile Water for Injection Preserved with 0.9% Benzyl Alcohol
- Structure
- Sterile water for injection preserved with 0.9% benzyl alcohol (9 mg/mL)
- Mechanism
- Benzyl-alcohol-preserved sterile diluent (bacteriostatic, not bactericidal)
How Every Compound Here Is Characterised
Purity is measured by reverse-phase HPLC and reported as area under the curve, with a minimum threshold of ≥99%. That figure tells you how much of the sample is the target peptide. It does not tell you what the remaining fraction is, and it does not confirm the target peptide is the right molecule in the first place.
Molecular identity is a separate question, answered by LC-MS/MS. Matching the measured mass against the published value for a compound is what distinguishes it from a structurally similar analog — which matters more than it sounds. TB-500 is sold across the market under one name for at least two different molecules, and the mass on the Certificate of Analysis is the only reliable way to tell which one you have.
Endotoxin content is measured by the LAL (Limulus Amebocyte Lysate) assay. All testing is performed by independent third-party laboratories, and Certificates of Analysis are issued per production batch rather than shared across a product line. Read the full testing methodology and CoA interpretation guide.
All compounds listed are sold for in-vitro laboratory research use only. Not intended for human consumption, clinical use, or veterinary use. Peptide.Express makes no medical claims. Several compounds in this catalog are prohibited at all times by the World Anti-Doping Agency and most are not FDA-approved for human use — regulatory status is stated on each individual compound page.