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Merck
CN

63605

Sigma-Aldrich

α-Melanocyte stimulating hormone

≥97.0% (HPCE/HPLC)

Synonym(s):

α-MSH, α-Melanotropin

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About This Item

Empirical Formula (Hill Notation):
C77H109N21O19S
CAS Number:
581-05-5
Molecular Weight:
1664.88
Beilstein:
741840
MDL number:
MFCD00133062
UNSPSC Code:
12352200
PubChem Substance ID:
24882755

Key Documents

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Assay

≥70% peptide basis
≥97.0% (HPCE/HPLC)

solubility

H2O: 1 mg/mL, clear, colorless

storage temp.

2-8°C

SMILES string

CSCC[C@H](NC(=O)[C@H](CO)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@H](CO)NC(C)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](Cc2c[nH]cn2)C(=O)N[C@@H](Cc3ccccc3)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](Cc4c[nH]c5ccccc45)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N6CCC[C@H]6C(=O)N[C@@H](C(C)C)C(N)=O

InChI

1S/C77H109N21O19S/c1-42(2)64(65(79)106)97-75(116)61-20-13-30-98(61)76(117)54(18-10-11-28-78)88-62(103)38-85-66(107)57(34-46-36-84-50-17-9-8-16-49(46)50)94-67(108)51(19-12-29-83-77(80)81)89-70(111)55(32-44-14-6-5-7-15-44)92-72(113)58(35-47-37-82-41-86-47)95-68(109)52(25-26-63(104)105)90-69(110)53(27-31-118-4)91-74(115)60(40-100)96-71(112)56(33-45-21-23-48(102)24-22-45)93-73(114)59(39-99)87-43(3)101/h5-9,14-17,21-24,36-37,41-42,51-61,64,84,99-100,102H,10-13,18-20,25-35,38-40,78H2,1-4H3,(H2,79,106)(H,82,86)(H,85,107)(H,87,101)(H,88,103)(H,89,111)(H,90,110)(H,91,115)(H,92,113)(H,93,114)(H,94,108)(H,95,109)(H,96,112)(H,97,116)(H,104,105)(H4,80,81,83)/t51-,52-,53-,54-,55-,56-,57-,58-,59-,60-,61-,64-/m0/s1

InChI key

WHNFPRLDDSXQCL-UAZQEYIDSA-N

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Amino Acid Sequence

Ac-Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2

General description

Ac-Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2

Biochem/physiol Actions

Pituitary hormone which causes darkening skin pigmentation from amphibians to humans. In mammals, it can also have behavioral effects on learning, attention, and memory.

Storage Class Code

13 - Non 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

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
BCBD2956V
BCBD1273V
BCBD1274V
BCBC1350
BCBC6459

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P C Datta et al.
Neuroscience and biobehavioral reviews, 6(3), 297-310 (1982-01-01)
Melanocyte-stimulating hormone (MSH) has putative adaptive significance in all forms of species where it is present. In mammals the polypeptide chain influences learning, memory and attention. Chemically MSH shares the first 13 (alpha-MSH) or the first 18 or 22 (beta-MSH)
Emma I Kay et al.
Journal of molecular endocrinology, 50(2), 203-215 (2013-01-09)
Human melanocortin 2 receptor accessory protein (hMRAPa) is hypothesised to have functions beyond promoting human melanocortin 2 receptor (hMC2R) functional expression. To understand these potential functions, we exogenously co-expressed hMRAPa-FLAG with each of the five hMCR subtypes in HEK293 cells
Rebecca Spichty et al.
Journal of pharmaceutical and biomedical analysis, 75, 192-198 (2013-01-02)
The tridecapeptide afamelanotide (Scenesse®) is a congener of α-melanocyte stimulating hormone (α-MSH). Upon binding to the melanocortin 1 receptor (MC1R) on the surface of pigment cells of the skin, the melanocytes, α-MSH or afamelanotide trigger the synthesis of cAMP, which
Eduardo J B Ramos et al.
Nutrition (Burbank, Los Angeles County, Calif.), 21(2), 269-279 (2005-02-23)
Obesity is increasing in severity and prevalence in the United States and represents a major public health issue. No effective pharmacologic treatment leading to sustained weight loss currently exists. The growing interest in the regulation of food intake stems from
Thomas Brzoska et al.
Endocrine reviews, 29(5), 581-602 (2008-07-10)
Alpha-MSH is a tridecapeptide derived from proopiomelanocortin. Many studies over the last few years have provided evidence that alpha-MSH has potent protective and antiinflammatory effects. These effects can be elicited via centrally expressed melanocortin receptors that orchestrate descending neurogenic antiinflammatory
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