Research Peptide Comparison
PT-141, also known as Bremelanotide, is a cyclic heptapeptide melanocortin receptor agonist with documented affinity for MC3R and MC4R, investigated in models relating to CNS-mediated signalling pathways. SLU-PP-332 is a structurally unrelated synthetic compound that targets ERRα and ERRγ — orphan nuclear receptors governing transcriptional programmes associated with energy expenditure and mitochondrial biogenesis. The mechanistic contrast is stark: PT-141 acts via GPCR pathways, while SLU-PP-332 engages nuclear receptor-mediated gene regulation.
PT-141 (Bremelanotide) is a cyclic heptapeptide melanocortin-receptor agonist with primary activity at the MC3R and MC4R subtypes, exerting its effects through central nervous system signalling rather than peripheral vascular pathways. This mechanism has placed it at the centre of research into central arousal circuits, sexual health pharmacology and melanocortin-system pharmacology more broadly.
Compared to SLU-PP-332 5mg, PT-141 10mg is priced at £16.99 with 99%+ verified purity. Its CAS registry number is 189691-06-3. It has a molecular weight of 1025.18 g/mol.
PT-141 10mg is available in single size and ships with a full Certificate of Analysis from Janoshik Analytical. At £23.00 less than SLU-PP-332 5mg, it is the more affordable option in this comparison.
SLU-PP-332 is a small-molecule selective pan-agonist of the oestrogen-related receptors (ERRα, ERRβ and ERRγ), orphan nuclear receptors that regulate mitochondrial biogenesis, oxidative metabolism and skeletal muscle endurance programmes. By engaging all three ERR subtypes it has emerged as a leading exercise-mimetic research tool for interrogating metabolic adaptation and oxidative capacity.
Compared to PT-141 10mg, SLU-PP-332 5mg is priced at £39.99 with 99%+ verified purity. It has a molecular weight of 438.52 g/mol.
SLU-PP-332 5mg is available in single size and ships with a full Certificate of Analysis from Janoshik Analytical. It is priced £23.00 higher than PT-141 10mg.
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