Identity
- Class
- Hormonal
- Molecular weight
- 1025 Da
- Residues
- 7
- Heavy atoms
- 144
- Reference slug
- pt-141
These are published properties of the molecule, given for identification. Values we cannot confirm are omitted rather than estimated. What these terms mean.
What this compound is
The same ring as Melanotan II, differing only at the C-terminus, which is a free acid here rather than an amide. One atom of difference between two compounds, which is why they are worth seeing side by side.
Sequence
UDHfRWK
This sequence uses notation outside the standard twenty one-letter codes — a lowercase letter marks a D-amino acid, and other symbols mark modified or non-standard residues. It is reproduced exactly as published rather than normalised, and no residue composition is derived from it.
Reference databases
PubChem
Compound record: Bremelanotide
Resolved from the compound name
PubMed
Indexed literature
Live search for PT-141
ClinicalTrials.gov
Registered studies
Live search for PT-141
Links resolved against the live databases on 2026-08-29.
Others in Hormonal
Kisspeptin-10
10 residues · 1302 Da
Ten residues, the shortest fragment that retains activity at its receptor. The C-terminal amide…
In our catalogue
Melanotan I
13 residues · 1647 Da
Alpha-MSH with two substitutions: the methionine at four becomes norleucine, which cannot oxidis…
In our catalogue
Melanotan II
7 residues · 1024 Da
Seven residues closed into a ring by a side-chain lactam: the aspartate at two and the lysine at…
In our catalogue
ACTH 1-13
13 residues · 1624 Da
The same thirteen residues as alpha-MSH but without the caps at either end. Putting the two next…
Reference entry
ACTH 1-24
24 residues · 2933 Da
Twenty-four residues, the shortest fragment of corticotropin that keeps full activity at the rec…
Reference entry
Alarelin
9 residues · 1167 Da
Nine residues opening with a pyroglutamate ring and closing with an ethylamide, both drawn. D-al…
Reference entry
This is a reference entry. Sequence, residue count, molecular weight and atom count are published properties of the molecule, given for identification. Nothing on this page describes an application, benefit, dose, route or outcome, and nothing here should be read as an offer to supply or as guidance for use in a person or an animal. Materials sold by PepXtide are for laboratory research use only, are not for human or animal consumption, and have not been evaluated by the FDA.