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Description
PT-141Research Use Only (RUO): PT 141 peptide (Bremelanotide) is supplied exclusively for in vitro and non clinical laboratory research. Not for human or veterinary use, not for injection, not for consumption. PT 141 Peptide (Bremelanotide) Research Use Only (RUO) Overview PT 141, commonly referenced as bremelanotide peptide, is a synthetic melanocortin receptor agonist used in controlled research workflows to investigate receptor mediated signaling and
⚠ Research Use Only (RUO): PT-141 peptide (Bremelanotide) is supplied exclusively for in-vitro and non-clinical laboratory research. Not for human or veterinary use, not for injection, not for consumption.
PT-141 Peptide (Bremelanotide) — Research Use Only (RUO) Overview
PT-141, commonly referenced as bremelanotide peptide, is a synthetic melanocortin receptor agonist used in controlled research workflows to investigate receptor-mediated signaling and downstream pathway readouts in non-clinical models. This page provides laboratory context only and does not imply clinical outcomes.
PT-141 (Bremelanotide) Specifications — CAS 189691-06-3, ≥99% HPLC
| Product Name | PT-141 (Bremelanotide) |
|---|---|
| CAS Number | 189691-06-3 |
| Molecular Formula | C50H68N14O10 |
| Molecular Weight | ~1025.2 g/mol |
| Peptide Type | Cyclic melanocortin receptor research peptide |
| Purity | ≥99% (HPLC verified) |
| Verification | HPLC / MS tested (batch-based) |
| Physical Form | Lyophilized powder |
| Documentation | CoA available upon request |
| Grade | Research Use Only (RUO) |
PT-141 Keywords Embedded for Search Intent (USA)
Common queries include pt-141 peptide, bremelanotide, pt-141 bremelanotide, melanocortin receptor agonist, MC4R, MC3R, pt-141 lyophilized powder, pt-141 storage, and pt-141 reconstitution.
Below, those terms are addressed naturally through RUO-safe technical sections and FAQs (no medical claims).
What Is PT-141 (Bremelanotide)? Melanocortin Receptor Research Peptide
In research literature, bremelanotide (PT-141) is discussed as a melanocortin-pathway probe, often evaluated for activity across melanocortin receptor subtypes (commonly referenced in CNS signaling models). Researchers use PT-141 to explore receptor binding, cAMP signaling, and pathway-level modulation under defined experimental conditions.
PT-141 Mechanism of Action in MC4R / MC3R Signaling Models (Research Context)
PT-141 is widely referenced for melanocortin receptor pathway investigation, supporting assays that quantify receptor activation and downstream signaling readouts (e.g., cAMP-linked responses) in controlled in-vitro systems. Experimental design, receptor subtype selection, and endpoints are protocol-dependent.
PT-141 Research Applications: Receptor Binding, CNS Pathways, and Autonomic Readouts
- Melanocortin receptor binding assays: receptor affinity/activation profiling in cell systems
- MC4R pathway mapping: downstream signaling cascade exploration in mechanistic workflows
- Neuroscience models: CNS-linked pathway studies focused on signaling and regulatory circuits
- Comparative peptide research: contrast vs. other melanocortin-pathway peptides (protocol-dependent)
- Analytical/QC workflows: identity/purity checks and reproducibility tracking in lab environments
PT-141 Storage and Handling: Lyophilized Peptide Powder + Reconstitution (RUO)
For pt-141 storage and preparation in RUO workflows, follow your laboratory SOP and the product documentation. Many labs store lyophilized peptides cold, protected from light and moisture, and prepare solutions only as needed for assays.
- Lyophilized PT-141: store at −20°C or below, protected from light/moisture
- After preparation: use within your protocol stability window (solvent/time are assay-dependent)
- Best practice: aliquot where appropriate; avoid repeated freeze–thaw cycles
Why Researchers Choose Peptides Skin for PT-141 (Bremelanotide) RUO Supply
- Verified purity: ≥99% HPLC verified (batch-based)
- Identity support: MS testing and traceability practices
- CoA availability: documentation for qualified research buyers
- Secure shipping: packaging optimized for stability during transit
FAQs — PT-141 Peptide (Bremelanotide) Research Use Only
What is PT-141 peptide (bremelanotide) in research?
PT-141 (bremelanotide) is a melanocortin-pathway research peptide used in non-clinical workflows to study receptor signaling (e.g., MC4R/MC3R) and downstream mechanistic readouts in controlled systems.
Is PT-141 from Peptides Skin approved for human use?
No. Peptides Skin supplies PT-141 strictly as Research Use Only (RUO). It is not intended or approved for human or veterinary use, injection, or consumption.
What are the CAS number and molecular weight of PT-141?
Common references list CAS 189691-06-3 and a molecular weight of approximately ~1025.2 g/mol for bremelanotide (PT-141). Always verify against batch documentation for your laboratory records.
How should PT-141 lyophilized powder be stored?
Store lyophilized PT-141 at −20°C or below, protected from light and moisture. Follow your SOP and minimize freeze–thaw cycles to reduce experimental variability.
Do you provide PT-141 CoA and HPLC/MS data?
Yes. CoA is available upon request, with batch-based HPLC purity verification and MS identity support for qualified research customers.
WARNING — Research Use Only (RUO):
For laboratory research and development purposes only. Not for human or veterinary use, injection, or consumption. Not intended to diagnose, treat, cure, or prevent any disease. Any mention of mechanisms refers exclusively to controlled research models.
For laboratory research and development purposes only. Not for human or veterinary use, injection, or consumption. Not intended to diagnose, treat, cure, or prevent any disease. Any mention of mechanisms refers exclusively to controlled research models.
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4.9 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 4
Great fan, quite, powerful
Color: Brushed Aluminum, Style: No Light Kit
Initially got bad receiver, after contracting customer service new one was shipped next day, after replacing it worked like a charm, no issues connecting to wifi
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Reviewed in the United States on April 21, 2023
★★★★★ 5
Smooth Operation
Color: Brushed Aluminum, Style: No Light Kit
This Fan has exceptional airflow and operates smoothly. I use the included remote control. It took a little white to install and it’s fairly heavy, but besides that, it’s great.
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Reviewed in the United States on November 30, 2022
★★★★★ 5
Absolutely the best in the series so far!
Format: Kindle
I've been wanting to get Dean's book since we met him in The Deal, and let me tell you, this book did NOT disappoint!
Dean is the playboy of the hockey team, he doesn't do relationships, and he just takes life as it goes. Allie is Hannah's best friend and roommate, and is a relationship type of girl. When she realizes her and her boyfriend are moving in separate directions and she can't do it anymore she breaks up with him. When she needs a place to hide out, Garrett offers up his house while they are away. She never expected that weekend to change everything for her.
Dean and Allie definitely have amazing chemistry, but one night together doesn't change things for them, or does it? Dean can't get Allie out of his head, and Allie knows she can't do a casual hookup, but they can't seem to keep away from one another. I loved how Dean finally wore Allie down, and how Allie finally got to have someone with her that understood her and was just as adventurous as she was. I don't agree with how she didn't want anyone to know about them, but I think the way everyone found out was perfect for them.
Dean and Allie's "relationship" is full of emotions, and you can slowly see this turning into something way more than what they thought it would be. Dean is amazing with Allie, he's supportive of her, he cares about her, and he's insanely jealous of anyone who dares look at her. Allie is loving how Dean makes her feel, and is also a huge supporter of his. For once in his life Dean opens up about himself and you can tell how nervous he was telling her about his ex, and everything involving the fall out of that situation. Their escapades are hilarious and sexy all at once. I loved watching them during Thanksgiving with Beau and his sister, where you can see that things definitely changed for them. I also adored their watching of the french soap opera, and all the little things they did together.
Not only does this book have a true romance that you can't help but fall in love with these amazing characters, but there are some absolute laugh out loud moments. When Logan walks in on Dean and "Winston" I spit my drink out I was laughing so hard. Also the hilarious Twilight references on imprinting! There is also a very serious aspect to this book that had me in tears. My emotions were definitely all over the place while reading this book, and I must say I think I love Dean more than Garrett, and he's been sitting at the top of my BBF list for a long time!
It's been a long time since I've read a book that I absolutely loved both of the main characters. I felt so connected to them, and their group of friends, that I thought I was right there with them experiencing their love, their laughs, and their heartbreak. This book definitely took me on one hell of a ride. I can't remember laughing so hard one moment, swooning and falling in love, and then balling my eyes out, only to have my heart put back together at the end. This is a beautifully written story and I could NOT put it down. I am definitely looking forward to Tuck's book, especially with the bomb-shell he dropped at the end of Dean's story!
Even though this book can be read as a stand-alone, I highly suggest reading each of the previous two books in this series, so you can get a good feel of how much Dean has changed since we met him, as well as how the group dynamic works. Each one of the books are 5 star reads, and trust me, you will definitely fall in love with Garrett, Logan and Dean!
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Reviewed in the United States on January 12, 2016
★★★★★ 4
The Good, The Bad and Everything In Between
Format: Kindle
Another excellent entry: The Off-Campus series is among the very, very best in new adult romance and there is little that isn’t done well in this entry.
Dean DiLaurentis is charged with watching out for Allie, Hannah’s roomie, one weekend while everyone is gone for various reasons - with, of course, the obligatory threats to his penis if he were to touch Allie. She’s just gone through a painful breakup with her boyfriend from book one, since they’ve had a fairly tempestuous relationship, she needs some time away from her apartment, where he’s been trying to get her to change her mind.
Of course, Allie and Dean are young, hot, single and there’s tequila. When you do the math, it’s fairly obvious that yes, Slot A goes into Tab B, and yes, romance happens. I love their banter, the humor throughout really establishes these characters and their friendships and makes the ride all the more enjoyable. Speaking of riding...
Dean’s what I expected: Dean’s the manho who beats all the previous manhoes in this series. He makes no apologies and I loved that he didn’t. He’s intrigued with Allie but he isn’t in love from the moment he lays eyes on her. When he falls, though it’s hard and it’s clearly life-altering. His moments with his friend Beau when they discuss his issues with little Dean (I can’t stop giggling at that silliness) were priceless.
He has a good journey towards adulthood, though I was saddened by the events that led to this character growth. It was the perfect (sad yet realistic) touch of bitter to make the sweet all the richer.
Allie was a surprise: I’ll admit, this is mostly because I didn’t remember her. Allie isn’t a big part of the first book and what I did remember of her was a bit flaky. I loved getting to know her and seeing what made her tick and as with Ms. Kennedy’s previous heroines, there is more than meets the eye. She’s concerned about being slut-shamed by the prospect of no-strings sex, considering she’s only ever been in committed, long term relationships, so I love that she has to learn to accept that there’s nothing wrong with two consenting adults doing what they want to do, damn public opinion. I found it an interesting twist that the only person truly slut-shamed is Dean, by other men and women.
Beats played out as I expected: If I have any issues with this is, while it is entertaining, charming, and funny, it also felt the same as the earlier books, which were also entertaining, charming and funny. When the quality is so high, that’s not a horrible thing, but I can’t help but struggle to keep each set of heroes and heroines separate in my mind. That said...
I’m really intrigued by where this series is going next: The setup for the next book is markedly different and it has me really eager to see how Ms. Kennedy handles it. The heroine for the next book is NOT in the mold of the earlier women and the hero is a bit of a wild card, since he has been more on the periphery so far. I’m looking forward to seeing what they have to contribute to this universe.
The Bottom Line
This is an excellent new adult romance with likeable characters, funny banter, hot sex scenes and room for the ‘verse to grow. If you haven’t read Ms. Kennedy’s series, I highly recommend it.
**ARC provided by author for review**
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Reviewed in the United States on January 14, 2016
★★★★★ 5
This book will give you ALL of the feels but it is AMAZING!
Format: Paperback
⚠️ Spoilers Ahead ⚠️
Full disclosure: I absolutely went back and pulled this book off my TBR because of the show. I had started the series a while ago and loved the first two books, but I couldn't quite get into the third one. After watching the adaptation and finally being able to put faces to the characters, I was completely on board with finishing the series—and wow, am I glad I did.
This book was such an amazing read. Yes, it has the classic romance formula we've come to expect from this series: girl falls for guy, guy falls for girl, chaos and feelings ensue. But what made The Score stand out was everything happening around the romance. The character development, the friendships, the family dynamics, and the side storylines made this book impossible to put down. I devoured the entire thing in two days.
The biggest highlight for me was Dean's character growth. From The Deal up until now, we've mostly seen him as the stereotypical hockey player—the guy everyone assumes is a dumb jock who hooks up with every girl on campus. But this book peels back those layers and shows who Dean really is. His protectiveness of Dakota and the team, the way he rushed to Allie's side despite the risk of exposing their relationship, his unwavering support for his friends, and the fact that he rarely uses his family's wealth or status to get ahead all reveal a much deeper character.
What I loved most is that Dean never felt the need to constantly defend himself or prove people wrong. Everyone had their assumptions about him, and instead of correcting them, he just kept being himself because he knew the truth. There was something really beautiful about that.
Allie's growth was equally satisfying. Watching her go from allowing Sean to dictate so much of her life to making her own choices and recognizing that she deserves better was such a rewarding journey. I also loved seeing the friend group continue to evolve. The boys rallying around the girls, supporting and protecting one another's relationships, really drove home the family dynamic that makes this series so enjoyable.
And then there's the emotional damage this book inflicted on me.
The Dean and Beau storyline absolutely wrecked me. The book spends so much time making you love Beau, his humor, his friendship with Dean, and all of his hilarious drunken moments that when the emotional gut punch finally comes, it hits hard. I remember getting toward the end, seeing that the relationship drama had been resolved, and realizing I still had a significant chunk of pages left. That's never a good sign.
Sure enough, those final chapters had me sitting in my room crying like a baby. Beau was one of the first people who brought out the real Dean, and their friendship was such an important part of his story. That entire section broke my heart.
Overall, just like the first two books, The Score was absolutely incredible. I loved every second of it. The romance was fantastic, the character development was top-tier, the friendships were everything, and that final reveal?
Excuse me... WHAT?!
That ending had my jaw on the floor and immediately sent me running to pick up the next book.
If you're reading the Off-Campus series and haven't gotten to The Score yet, do yourself a favor and move it to the top of your list.
⭐️⭐️⭐️⭐️⭐️ Easily 5 stars.
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Reviewed in the United States on June 3, 2026