PT-141 (Bremelanotide) Testing Services
PT-141 (Bremelanotide) is a synthetic peptide analog derived from Melanotan II. It is a melanocortin receptor agonist that has been studied for its effects on sexual function and arousal.
Net content testing for PT-141 (Bremelanotide)
Net peptide content testing is available for this analyte at $99 per sample. It measures the amount of the selected analyte present, separately from purity percentage. One sealed vial is required; most tests need 10 mg. The same vial can be used when ordered with purity & identity. Confirm handling with the laboratory before shipping.
View testing pricesResearch Applications
Common research areas for PT-141 (Bremelanotide)
- Sexual behavior research
- Neuroscience studies
- Melanocortin receptor research
- Psychopharmacology
Peptide Information
Molecular details and sample requirements
Sequence / Structure:
Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-OH
Molecular Weight
1025.18 g/mol
Formula
C50H68N14O10
Recommended Purity
≥98%
Sample Size
0.5-1 mg lyophilized
Our PT-141 (Bremelanotide) Testing Services
Comprehensive analytical testing to ensure PT-141 (Bremelanotide) quality and purity
Purity Testing
HPLC analysis to verify PT-141 (Bremelanotide) purity levels
Identity Verification
Mass spectrometry to confirm molecular identity
Third-Party Verification
Independent COA verification for PT-141 (Bremelanotide)
Certificate of Analysis
Official US laboratory documentation
Ready to test your peptides?
Send your peptide name, sample count, and the tests you need. We return a fixed-price quote, usually within one business day.
- validated analytical methods, independent of any supplier
- 3–5 business days for eligible routine testing
- Traceable COA with chromatograms and method parameters
PT-141 (Bremelanotide) Testing Methodology
Our analytical workflow for PT-141 (Bremelanotide) follows USP <1225> guidance for validated chromatographic methods. Each lot is processed by a credentialed analyst with documented chain of custody.
Step 1
Sample intake & chain of custody
Confirm sample requirements and handling before shipping your PT-141 (Bremelanotide) sample. Most tests require one 10 mg sealed vial. Samples are logged at our Florida laboratory for analysis.
Step 2
Reverse-phase HPLC purity
PT-141 (Bremelanotide) is dissolved in mobile phase and run on a C18 column with a water/acetonitrile gradient containing 0.1% TFA. UV detection at 214 nm quantifies the main peak and any related impurities.
Step 3
LC-MS identity confirmation
An aliquot is analyzed by liquid chromatography-mass spectrometry. The observed monoisotopic mass is compared against the theoretical molecular weight (1025.18 g/mol) for PT-141 (Bremelanotide) to confirm identity.
Step 4
Impurity profiling & reporting
Related substances, truncations, and oxidation products are quantified. Findings are compiled into a signed Certificate of Analysis with chromatograms, mass spectra, and analyst interpretation.
PT-141 (Bremelanotide) Purity Notes
Recommended research-grade purity for PT-141 (Bremelanotide) is ≥98%. Lot-to-lot variation is common with solid-phase synthesis, so independent verification matters.
Common impurities to watch
- Truncated sequences from incomplete coupling
- Deletion peptides missing one or more residues
- Oxidation of methionine, tryptophan, or cysteine
- Residual TFA, acetate, or solvent counter-ions
- Aggregates and dimers from improper storage
What our COA confirms
- Main peak purity by HPLC area %
- Observed vs theoretical mass (1025.18 g/mol)
- Named impurities ≥ 0.1% area
- Net peptide content where applicable
- Method, column, and instrument metadata
PT-141 (Bremelanotide) Handling, Storage & Safety
Guidance below is for laboratory and research personnel only. PT-141 (Bremelanotide) is supplied for research use and is not intended for human or veterinary use.
Storage
Store lyophilized PT-141 (Bremelanotide) at -20 °C, protected from light and moisture. After reconstitution, aliquot and store at -80 °C; avoid repeated freeze-thaw cycles.
Reconstitution
Reconstitute in bacteriostatic or sterile water in a clean environment. Allow vials to reach room temperature before opening to prevent moisture condensation on the powder.
PPE & shipping
Handle with gloves, lab coat, and eye protection. Ship samples to ACS overnight on dry ice or cold packs in a rigid, leak-proof container with a packing slip referencing your quote.
This page is informational and does not constitute medical advice. Consult your institution's safety officer and SDS before working with PT-141 (Bremelanotide).
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