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M8693

Sigma-Aldrich

Melanotan II acetate salt

≥95% (HPLC)

Synonym(s):

Ac-[Nle4Asp5D-Phe7Lys10]α-MSH-(4-10)-NH2

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About This Item

Empirical Formula (Hill Notation):
C50H69N15O9 · xC2H4O2
CAS Number:
121062-08-6
Molecular Weight:
1024.18 (free base basis)
MDL number:
MFCD06795842
UNSPSC Code:
51111800
NACRES:
NA.32

Assay

≥95% (HPLC)

form

lyophilized solid

color

white

solubility

H2O: soluble 5 mg/mL

shipped in

dry ice

storage temp.

−20°C

InChI

1S/C50H69N15O9/c1-3-4-16-36(59-29(2)66)44(69)65-41-25-42(67)55-20-11-10-18-35(43(51)68)60-47(72)39(23-31-26-57-34-17-9-8-15-33(31)34)63-45(70)37(19-12-21-56-50(52)53)61-46(71)38(22-30-13-6-5-7-14-30)62-48(73)40(64-49(41)74)24-32-27-54-28-58-32/h5-9,13-15,17,26-28,35-41,57H,3-4,10-12,16,18-25H2,1-2H3,(H2,51,68)(H,54,58)(H,55,67)(H,59,66)(H,60,72)(H,61,71)(H,62,73)(H,63,70)(H,64,74)(H,65,69)(H4,52,53,56)/t35-,36-,37-,38+,39-,40-,41-/m0/s1

InChI key

JDKLPDJLXHXHNV-MFVUMRCOSA-N

Gene Information

human ... MC3R(4159) , MC4R(4160)
mouse ... MC3R(17201) , MC4R(17202)
rat ... MC3R(29310) , MC4R(25635)

Amino Acid Sequence

Ac-Nle-Asp-His-Phe-Arg-Trp-Lys-NH2

General description

Melanotan II induces melanogenesis and thus increases skin pigmentation. It is an analog of α-melanocyte stimulating hormone.

Application

Melanotan II acetate salt has been used to study its inhibitory effects on feeding and energy expenditure in rats.

Biochem/physiol Actions

Melanotan II is a MC3-R/MC4-R melanocortin agonist.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Kristian Thestrup-Pedersen et al.
Ugeskrift for laeger, 173(13), 975-975 (2011-04-02)
A 25-year-old man had self-injected more than 150 doses of melanotan to increase his skin pigmentation, which had increased significantly. At the same time, his nevi had become darker and new nevi and lentigines developed; they also occurred on his
[Eruptive dysplastic nevi following melanotan use].
L Hueso-Gabriel et al.
Actas dermo-sifiliograficas, 103(4), 329-331 (2012-03-20)
Zeng-You Ye et al.
Regulatory peptides, 166(1-3), 112-120 (2010-10-13)
Sympathetic nerve activity is increased in obesity-related hypertension. However, the central mechanisms involved in the increased sympathetic outflow remain unclear. The hypothalamic melanocortin system is important for regulating energy balance and sympathetic outflow. To understand the mechanisms by which the
Inhibitory Effect of the Melanocortin Receptor Agonist Melanotan-II (MTII) on Feeding Depends on Dietary Fat Content and not Obesity in Rats on Free-Choice Diets
Jose K
Frontiers in Behavioral Neuroscience (2015)
John-Paul Baird et al.
American journal of physiology. Regulatory, integrative and comparative physiology, 301(4), R1044-R1056 (2011-07-08)
Injections of the melanocortin 3/4 receptor (MCR) agonist melanotan II (MTII) to a variety of brain structures produces anorexia, suggesting distributed brain MCR control of food intake. We performed a detailed analysis of feeding behavior (licking microstructure analysis) after a
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