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BREMELANOTIDE

CAS No.
189691-06-3
Chemical Name:
BREMELANOTIDE
Synonyms
PT 141;PT-141 (BREMELANOTIDE);N-Acetyl-L-norleucyl-L-alpha-aspartyl-L-histidyl-D-phenylalanyl-L-arginyl-L-tryptophyl-L-lysine (2-7)-lactam;Bremelanotide,α-MSH (PT-141);MTPT-141;Bremerdam;REMELANOTIDE;Brmelanotice;BREMELANOTIDE;Peptide PT-141
CBNumber:
CB2947682
Molecular Formula:
C50H68N14O10
Molecular Weight:
1025.18
MDL Number:
MFCD09954110
MOL File:
189691-06-3.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-08-28 18:22:08

BREMELANOTIDE Properties

Density 1.43
solubility DMSO (Slightly), Methanol (Slightly), Water (Slightly, Sonicated)
form Solid
pka 3.37±0.70(Predicted)
color White to Off-White
Sequence Ac-Nle-Asp-His-D-Phe-Arg-Trp-Lys-OH Asp-Lys
Stability Un-reconstituted lyophilized powder should be stored under refrigeration per vial’s instruction. After reconstitution with bacteriostatic water, refrigerate solution and use within 30 days. If buffered solution is used, stability will improve.
InChIKey FFHBJDQSGDNCIV-MLYCVURTNA-N
FDA UNII 6Y24O4F92S
ATC code G02CX05

BREMELANOTIDE price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth VAC-00017 PT-141 5mg $308.55 2026-06-05 Buy
Biosynth VAC-00017 PT-141 10mg $514.3 2026-06-05 Buy
Biosynth VAC-00017 PT-141 25mg $1028.5 2026-06-05 Buy
Biosynth FB159119 Bremelanotide 189691-06-3 0.05g $478.5 2026-06-04 Buy
Biosynth FB159119 Bremelanotide 189691-06-3 0.1g $638 2026-06-04 Buy
Product number Packaging Price Buy
VAC-00017 5mg $308.55 Buy
VAC-00017 10mg $514.3 Buy
VAC-00017 25mg $1028.5 Buy
FB159119 0.05g $478.5 Buy
FB159119 0.1g $638 Buy

BREMELANOTIDE Chemical Properties, Uses, Production

Description

Bremelanotide (Vyleesi®) was approved by the FDA in June 2019 for the treatment of acquired, generalized HSDD in premenopausal women. Bremelanotide activates melanocortin receptors,but the mechanism by which it improves sexual desire is unknown. To use bremelanotide, women inject it under the skin ofthe abdomen or thigh at least 45 minutes before anticipated sexual activity.The optimal time to inject bremelanotide may vary based on the duration of benefit and side effects experienced. More than one dose of bremelanotide should not be used within 24 hours or more than eight doses per month. Common side effects include nausea, vomiting, flushing, injection site reactions, and headache. Bremelanotide should not be used in women with high blood pressure that is uncontrolled or in those with known cardiovascular disease, and it is not recommended for women at high risk for cardiovascular disease. The safety and efficacy of bremelanotide has not been studied in breast cancer survivors, and there are no recommendations regarding its use in this population.

Uses

Treatment of sexual dysfunction (melanocortin receptor agonist).
Bremelanotide is used to treat low sexual desire in women who have not gone through menopause and have not had low sexual desire in the past.
bremelanotide should be used only to treat low sexual desire that occurs with any type of sexual activity, in any sexual situation, or with any sexual partner.
Bremelanotide should not be used to treat low sexual desire that is caused by relationship problems, health problems, mental illness, or by using certain drugs or medications.
https://www.drugs.com

Definition

ChEBI: Bremelanotide is an oligopeptide.

Biological Activity

Bremelanotide (PT-141) is a brain-penetrant, alpha-melanocyte-stimulating hormone (α-MSH)-derived cyclic heptapeptide agonist toward melanocortin receptors, including MC1R, MC3R and MC4R (affinty = 10 nM by competitive binding against 0.2 nM NDP-α-MSH using human MC4R-expressing HEK-293). Bremelanotide induces cAMP accumulation in hMC4R-expressing HEK-293 cells and exhibits in vivo sexual arousal efficacy among both male (50 μg/kg intranasally or 50-500 pg/kg via lateral ventricle injection) and female rats (100-200 μg/kg sc or 800 μg/kg via lateral ventricle injection) by activating neurons in brain regions responsible for sexual function.

Mechanism of action

The trade name is vylessi. It likely works in the brain, but the true mechanism of action is unknown.Bremelanotide is given by injection at least forty-five minutes prior to anticipated sex and alcohol must be avoided for two hours before and two hours after using the medication.
Bremelanotide is a nonselective melanocortin receptor agonist; at therapeutic doses, bremelanotide binding to melanocortin 1 and 4 receptors is mostrelevant.
Sexual dysfunction is theoretically linked to an imbalance in central excitatory and inhibitory sexual signals.
HSDD hypothetically results from excessive inhibitory signals, inadequate excitatory signals, or a combination of the two.
Melanocortin receptors are located in the medial preoptic area of the hypothalamus, which is implicated in the sexual behavior of both sexes; stimulation of those receptors leads to dopamine release.
Prescriber's Guide Stahl's Essential Psychopharmacology

Clinical Use

bremelanotide, or PT-141, is a synthetic, central melanocortin receptor agonist that increases αmelanocyte stimulating hormone (α-MSH) in the body. It has been reported to aid in sexual experiences for men and women.PT-141 is a deaminated derivative and likely metabolite of Melanotan II, another synthetic melanocortin receptor agonist initially used for tanning purposes. During treatment with Melanotan II, researchers, clinicians and patients noticed an increase in sexual activity.However, Side effects reported with melanotan II include nausea, vomiting, yawning, and a delayed onset of erection (approximately 2 hours).So researchers began to look for alternatives to melanotan II, and bremelanotide was synthesized in 2000 and trials began.
Unlike the FDA approved PDE5 inhibitors that improved sexual function by improving nitric oxide and vascular function, PT-141 works on the CNS, thus eliciting a more desirous sexual response.Of the 5 meanocortin receptors (1-5), PT-141 has the highest affinity for melanocortin receptor 4 (MC4R). In the hypothalamus, α-MSH suppresses appetite (MC4R receptor), with MC4R defects are reported to be a cause for autosomal dominant obesity, accounting for approximately 6% of all cases of early onset obesity.MC4R stimulation also contributes to improved sexual function in both men (improving penile erections) and women (increasing desire and arousal).
https://northamptonintegrativemedicine.com

Side effects

The U.S. Food and Drug Administration today approved Vyleesi (bremelanotide) to treat acquired, generalized hypoactive sexual desire disorder (HSDD) in premenopausal women.
The most common side effects of Vyleesi are nausea and vomiting, flushing, injection site reactions and headache. About 40% of patients in the clinical trials experienced nausea, most commonly with the first Vyleesi injection, and 13% needed medications for the treatment of nausea. About 1% of patients treated with Vyleesi in the clinical trials reported darkening of the gums and parts of the skin, including the face and breasts, which did not go away in about half the patients after stopping treatment. Patients with dark skin were more likely to develop this side effect.
https://www.fda.gov

Synthesis

A kind of synthetic method of Bremelanotide, by the carboxyl of Lys with protecting to hydroxymethyl-benzoic acid.Can be the connection P-hydroxybenzoic acid gene on vector resin, then with Fmoc-Lys (IVDde)There is esterification in-OH, aminoacid is sequentially ingressed into again, obtain Boc-His (Trt)-D-Phe-Arg (pbf)-TrP (Boc)-Lys (IVDde)-HMBA-P, then protection group IVDde on Lys is taken off with lysate, the amino group for exposing, be there is into condensation reaction in the carboxyl of Asp in the amino group for exposing and Ac-Nle-Asp (COOH)-otBu and obtain condensation liquid, condensation liquid is cracked, filter to take filtrate, sedimentation, centrifuging and taking lower floor solid, it is vacuum dried to obtain thick peptide, thick peptide is cyclized must be cyclized liquid, cyclisation liquid is hydrolyzed, again after preparative high performance liquid chromatography is isolated and purified, lyophilization obtains Bremelanotide sterling. Sterling is detected, purity is more than 98%, response rate 50%-60%.

Current market and forecast

Uptake of Vyleesi (bremelanotide), a drug produced by Amag Pharmaceuticals to treat women with HSDD, is expected to be slow, if approved, but is unlikely to encounter the same challenges as Sprout's Addyi, an already approved similar drug.
Bremelanotide (marketed as Vyleesi) — an injectable drug approved in June for premenopausal women with generalized hypoactive sexual desire disorder — will carry a list price of $899, Reuters reports.

Description

Bremelanotide Synthetic is a single, non-glycosylated polypeptide chain containing 6 amino acids, having a molecular mass of 1025.16 Dalton and a Molecular formula of C50H68N40O10.

Background

Bremelanotide (PT-141), a synthetic heptapeptide, is a novel therapeutic agent primarily utilized for the treatment of sexual dysfunction. This paper provides an exhaustive review of Bremelanotide, detailing its biochemical structure, mechanism of action, therapeutic applications, and future prospects in clinical medicine.

References

[1] Synthesis method of Bremelanotide. CN106589111A

BREMELANOTIDE Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 267)
Supplier Tel Email Country ProdList Advantage
Shenzhen PeptideGenesis BioTech Co., Ltd. 19168963552 sales@peptgenesis.com China 57 58
ZHEJIANG HUAJUN PHARMACEUTICAL CO., LTD 0571-17315361885 17315361885 15007824@QQ.COM China 223 58
Nanjing Peptide Biotech Ltd. 025-58361106-805 15951641583 zhao.xu@njpeptide.com China 9976 55
Nanjing Leon Biological Technology Co., Ltd. 025-84523390 -127; 17705183659 sales@njleonbiotech.com China 5501 55
Zhejiang Jiekun Biotechnology Co., Ltd 0571-88211921 15397062932 sales1@gotopbio.com China 4864 58
Maintain Biotech Co., Ltd. 755-89664337 19125366885 sales@maintain-bio.com China 67 58
ShaanXi BoRui Xiang Tai Pharmaceutical Co., LTD 86+18591774838(ws) 3622859247@qq.com China 25 58
Hunan Chenxi Lanpeptide Biotechnology Co., Ltd. 15200892526 ipey@live.cn China 44 58
Shanghai Enguang Zhenhuo Biotechnology Co., Ltd. 18964167915 15800462215 15800462215@163.com China 9 58
Hangzhou Beiputai Biopharmaceutical Co., Ltd 0571-85350119 13305819357 bptsales@163.com China 49 58

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PT-141  pictures 2026-09-20 PT-141
$20.00 1box 99 Ningbo Qingteng Plastic Cost.,Ltd.
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BREMELANOTIDE Brmelanotice Ac-Nle-cyclo(-Asp-His-D-Phe-Arg-Trp-Lys)-OH Bremelanotide, PT141,PT-141 BREMELANOTIDE PT141 REMELANOTIDE PT141 Acetate,BreMelanotide Acetate Ac-Nle-cyclo(-Asp-His-D-Phe-Arg-Trp-Lys) L-Lysine, N-acetyl-L-norleucyl-L-α-aspartyl-L-histidyl-D-phenylalanyl-L-arginyl-L-tryptophyl-, (2→7)-lactam PT-141 USP/EP/BP Bremelanotide powder, PT-141 Acetate Bremelanotide See B677355 PT-141(Bremelanotide) acetate Pt-141, Bremerdam Bremerdam Bremelanotide,α-MSH(PT-141) BREMELANOTIDE,Brmelanotice BREMELANOTIDE,Brmelanotice PT141 Bremelanotide powder PT-141 10mg Bremelanotide Validamine Bremelanotide (PT-141) Bivalirudin Peptide PT-141 PT141(Brmelanotide) α-MSH (PT-141),Bremelanotide MTPT-141 AC-NLE-ASP-HIS-D-PHE-ARG-TRP-LYS ASP-LYS PT-141 (PT-141 Acetate) (Bremelanotide Acetate) (3S,6S,9R,12S,15S,23S)-15-[[(2S)-2-acetamidohexanoyl]amino]-9-benzyl-6-[3-(diaminomethylideneamino)propyl]-12-(1H-imidazol-5-ylmethyl)-3-(1H-indol-3-ylmethyl)-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18-hexazacyclotricosane-23-carboxylic acid Bremelanotide,α-MSH (PT-141) N-Acetyl-L-norleucyl-L-alpha-aspartyl-L-histidyl-D-phenylalanyl-L-arginyl-L-tryptophyl-L-lysine (2-7)-lactam PT 141 PT-141 (BREMELANOTIDE) Ac-Nle-Asp(1)-His-D-Phe-Arg-Trp-Lys(1)-OH(disulfide Asp-Lys) PT-141, Bremelanotide Acetate 8866 189691-06-3 89691-06-3 186961-06-3 Peptides