Melanotan II (MT-II) CAS 121062-08-6 Peptide Purity (by HPLC) ≥97.0% Factory High Quality

Short Description:

Chemical Name: Melanotan II

Synonyms: MT-II; MT-2 

CAS: 121062-08-6 

Appearance: White Powder

Peptide Purity (by HPLC): ≥97.0%

Assay (by HPLC): 95.0~105.0%

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401


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Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of Melanotan II (MT-II; MT-2) (CAS: 121062-08-6) with high quality. Ruifu can provide worldwide delivery, competitive price, small and bulk quantities available. Purchase Melanotan II, Please contact:

Chemical Properties:

Chemical Name Melanotan II  
Synonyms Melanotan 2; MT-II; MT II; MT-2; MT2; Melanotan II Acetate Salt; Melanotan II Acetic Acid Salt; N-Acetyl-L-norleucyl-L-α-aspartyl-L-histidyl-D-phenylalanyl-L-arginyl-L-tryptophyl-L-lysinamide Cyclic (2→7)-peptide Acetic Acid Salt; (Acetyl-Nle4, Asp5, DPhe7, Lys10)-cyclo-a-MSH (4-10) amide
Sequence Ac-Nle-c[Asp-His-d-Phe-Arg-Trp-Lys]-NH2 Chemical Bridge Asp2-Lys7
Stock Status In Stock 
CAS Number 121062-08-6 
Molecular Formula C50H69N15O9
Molecular Weight 1024.18 g/mol
C Terminal   NH2
N Terminal Ac
Lactam Bridge Asp2-Lys7
Solubility The peptide is Soluble in Water, 5 mg/ml 
Form Sterile Filtered White Lyophilized (Freeze-Dried) Powder 
Density 1.43 
Storage Temp.  at -20°C & Dry Place. Keep Container Tightly Closed When Not in Use.
COA & MSDS Available
Brand Ruifu Chemical


Items Inspection Standards Results
Appearance White Powder  White Powder 
Specific Rotation [α]20/D -50.0° to -60.0° (C=0.5, 10% HAc)
Solubility Soluble in water or 10% acetic acid at a concentration of ≥1mg/ml to give a clear, colorless solution Conforms 
Water Content (Karl Fischer) ≤8.0% 5.2%
Acetate Content (by HPLC) ≤15.0% 6.4%
Amino Acid Composition ±10% of Theoretical Conforms
Single Impurity (by HPLC) ≤1.0% 0.16%
Peptide Purity (by HPLC) ≥97.0% by Area Integration  99.41%
Bacterial Endotoxins ≤5EU/mg Conforms
Assay (by HPLC) 95.0~105.0% 99.5%
Conclusion The product has been tested & complies with the specifications


Package: Plastic vial (dedicated for peptide packing) or glass vial, or according to customer's detail requirement.
Storage Condition: Store the peptide at -20°C. Keep container tightly closed.
Shipping: Deliver to worldwide by FedEx / DHL Express. Provide fast and reliable delivery.
Stability: Lyophilized MT-II although stable at room temperature for 3 weeks, should be stored desiccated below -20℃. Upon reconstitution MT-II should be stored at 4℃ between 2-7 days and for future use below -20℃. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles. 


Sufficient Capacity: Sufficient facilities and technicians

Professional Service: One stop purchasing service

OEM Package: Custom package and label available

Fast Delivery: If within stock, three days delivery guaranteed

Stable Supply: Maintain reasonable stock    

Technical Support: Technology solution available

Custom Synthesis Service: Ranged from grams to kilos

High Quality: Established a complete quality assurance system


How to Purchase? Please contact Dr. Alvin Huang: or 

15 Years Experience? We have more than 15 years of experience in the manufacture and export of a wide range of high quality pharmaceutical intermediates or fine chemicals.

Main Markets? Sell to domestic market, North America, Europe, India, Korea, Japanese, Australia, etc.

Advantages? Superior quality, affordable price, professional services and technical support, fast delivery.

Quality AssuranceStrict quality control system. Professional equipment for analysis include NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, K.F, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, etc.

SamplesMost products provide free samples for quality evaluation, shipping cost should be paid by customers.

Factory AuditFactory audit welcome. Please make an appointment in advance.

MOQ? No MOQ. Small order is acceptable.

Delivery Time? If within stock, three days delivery guaranteed.

TransportationBy Express (FedEx, DHL), by Air, by Sea.

Documents? After sales service: COA, MOA, ROS, MSDS, etc. can be provided.

Custom SynthesisCan provide custom synthesis services to best fit your research needs.

Payment TermsProforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T (Telex Transfer), PayPal, Western Union, etc. 

121062-08-6 - Risk and Safety:

Hazard Symbols Xn - Harmful
Risk Codes 22 - Harmful if swallowed
WGK Germany 3


WARNING: THIS PRODUCT IS INTENDED AS A RESEARCH PRODUCT ONLY. It is sold strictly for laboratory research purposes only but NOT for human use. They are not medicinal products and it can be harmful if ingested. Bodily introduction of any kind into humans or animals is strictly forbidden by law.


Melanotan II (MT-II; MT-2) (CAS: 121062-08-6) is a lab-made chemical that is similar to a hormone found in people. Melanotan II is a synthetic analogue of the melanocortin peptide hormone alpha-melanocyte stimulating hormone (α-MSH) that occurs naturally. In usage, Melanotan II has been revealed to have aphrodisiac and melanogenesis (tanning) effects that have been subjected to clinical trials and preliminary studies.
Malanotan II is used for tanning of the skin and producing of erections in men with erectile dysfunction when administered as a shot under the skin. Malanotan II is safe when used under strict medical supervision for treating erectile dysfunction. However, it may cause stomach cramps, tiredness, nausea, spontaneous erections of the penis, and darkened skin.
During clinical trials for its use as a tanning agent, melanotan II was found to be a potent stimulator of male erections. It has also been shown to increase female sexual desire in patients with sexual arousal disorder).
Melanotan II is widely sold online and in beauty salons as well as gyms as melanotan in their marketing. These products purport to contain the same chemical composition as afamelanotide. These products have been declared illegal and do not have the same chemical components as Melanotan II. As such, countries issues warnings against their use.  

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