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Melanotan II dosage calculator
Melanotan II vials are commonly labelled 5 mg, 10 mg. This calculator divides the vial mass by the diluent volume you enter to show concentration, then converts your own target amount into millilitres and syringe units. It states no dose, chooses no amount and stores nothing.
This page is a calculation tool. The amounts you enter are values you decided; this page states no dose and gives no medical advice.
Melanotan II vial concentration grid
This table answers one arithmetic question: what concentration results when a labelled vial mass is divided by a measured diluent volume? It does not select either value.
| Vial mass | Diluent | Concentration | Same concentration |
|---|---|---|---|
| 5 mg | 0.5 mL | 10,000 mcg/mL | 10 mg/mL |
| 5 mg | 1 mL | 5,000 mcg/mL | 5 mg/mL |
| 5 mg | 1.5 mL | 3,333.33 mcg/mL | 3.333 mg/mL |
| 5 mg | 2 mL | 2,500 mcg/mL | 2.5 mg/mL |
| 5 mg | 2.5 mL | 2,000 mcg/mL | 2 mg/mL |
| 5 mg | 3 mL | 1,666.67 mcg/mL | 1.667 mg/mL |
| 5 mg | 5 mL | 1,000 mcg/mL | 1 mg/mL |
| 10 mg | 0.5 mL | 20,000 mcg/mL | 20 mg/mL |
| 10 mg | 1 mL | 10,000 mcg/mL | 10 mg/mL |
| 10 mg | 1.5 mL | 6,666.67 mcg/mL | 6.667 mg/mL |
| 10 mg | 2 mL | 5,000 mcg/mL | 5 mg/mL |
| 10 mg | 2.5 mL | 4,000 mcg/mL | 4 mg/mL |
| 10 mg | 3 mL | 3,333.33 mcg/mL | 3.333 mg/mL |
| 10 mg | 5 mL | 2,000 mcg/mL | 2 mg/mL |
Melanotan II physical-property record
Melanotan II molecular identity
PubChem lists Melanotan II with formula C50H69N15O9 and molecular weight 1,024.2 g/mol. The cyclic peptide is chemically close in mass to bremelanotide but is not the same molecular record. A lot note should preserve the exact Melanotan II or MT-2 name, source, chemical form and certificate instead of borrowing PT-141 data because the two pages appear in the same compound family. Sources: PubChem: Melanotan II compound record · MedChemExpress: Melanotan II specification.
Supplier solubility and storage statement
MedChemExpress reports water solubility at 50 mg/mL for its Melanotan II product, with refrigerated short-term storage and frozen long-term storage in the supplier specification. Those conditions belong to that catalog material. They are not a universal preparation concentration or a beyond-use date for another vial. The calculator does not preselect liquid from the technical result. Sources: MedChemExpress: Melanotan II specification.
Cyclic peptide identity should remain explicit
Melanotan II is recorded as a cyclic peptide, so a certificate should be checked for the exact sequence, ring definition and salt form. A shortened MT-2 label is useful as an alias but not as a replacement for those fields. PubChem provides the molecular anchor, while the supplier page documents one product's physical behavior. Neither source verifies an unrelated powder. Sources: PubChem: Melanotan II compound record · MedChemExpress: Melanotan II specification.
No recommendation follows from solubility
A material dissolving at a reported laboratory concentration does not establish a suitable amount, route, sterility or stability after opening. This calculator uses only labelled mass, measured liquid and a user-entered target for deterministic conversion. It states no dose, schedule or progression. The molecular and handling facts are included to make the page specific to Melanotan II, not to provide a protocol. Sources: PubChem: Melanotan II compound record · MedChemExpress: Melanotan II specification.
How to use the calculator
- Read the total mass from your own vial label and enter it in milligrams.
- Enter the diluent volume you actually measured, not an intended or remembered value.
- Enter your own target amount and select the calibration printed on your syringe barrel.
- Record the concentration with the result so the syringe-unit figure remains interpretable later.
Source and identity record
Use the compound reference page and these external database searches when checking identity: PubMed literature search for Melanotan II · PubChem compound database · PubChem: Melanotan II compound record · MedChemExpress: Melanotan II specification. A database record does not authenticate a vial.
Frequently asked questions
How much bacteriostatic water for a 5 mg Melanotan II vial?
This calculator does not choose a diluent volume. Enter the volume you decided to add to the 5 mg vial and it will show the resulting concentration. The page supplies arithmetic, not an instruction.
How much bacteriostatic water for a 10 mg Melanotan II vial?
There is no universal volume selected by this page. Use the value you measured or were instructed to use; the calculator then divides the 10 mg label mass by that volume.
Does the Melanotan II calculator recommend a dose?
No. The target amount is always entered by the user. The tool provides no starting amount, maximum amount, progression, frequency or schedule.
Why does the syringe calibration matter?
A syringe unit is a volume marking. U-100, U-50 and U-40 barrels use different numbers of units per millilitre, so the same solution volume produces different markings.
Related pages
Stop recalculating this every time
PepCycle stores each vial once — mass, diluent volume, concentration — and converts automatically for every entry after that, in both directions, including entries you backdate.
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Last updated · Written by Aykut Yilmaz. All calculations run in your browser; no values are transmitted or stored.