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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 5488554Generated: November 3, 2026

Mastoparan X

MP-X · MASTOPARAN X · INWKGIAAMAKKLL-NH2 · ILE-ASN-TRP-LYS-GLY-ILE-ALA-ALA-MET-ALA-LYS-LYS-LEU-LEU-NH2 · H-ILE-ASN-TRP-LYS-GLY-ILE-ALA-ALA-MET-ALA-LYS-LYS-LEU-LEU-NH2 · L-Leucinamide, L-isoleucyl-L-asparaginyl-L-tryptophyl-L-lysylglycyl-L-isoleucyl-L-alanyl-L-alanyl-L-methionyl-L-alanyl-L-lysyl-L-lysyl-L-leucyl-

https://huagongshe.com/en/chemical/5488554

Mastoparan X molecular structure

Identifiers & Physical Properties

CAS No.72093-22-2
Molecular formulaC73H126N20O15S
Average molar mass1,556 g/mol
Monoisotopic mass1,554.94322457 g/mol
SMILESCC[C@H](C)C(NC(=O)CNC(=O)[C@H](CCCCN)NC(=O)[C@H](Cc1c[nH]c2ccccc12)NC(=O)[C@H](CC(N)=O)NC(=O)[C@@H](N)[C@@H](C)CC)C(=O)N[C@@H](C)C(=O)N[C@@H](C)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(N)=O
InChIKeyFYJKBFOGJAVCAL-MRBAVNCWSA-N
PubChem CID5488554
EC No.686-479-2

Chemical & Physical Properties

XLogP0.4
Topological polar surface area610
Hydrogen bond donors20
Hydrogen bond acceptors20
Rotatable bonds54
Heavy atoms109
Formal charge0
Complexity2,970
Boiling point1797.4±65.0 °C(Predicted)
Density1+-.0.06 g/cm3(Predicted)
Storage conditions-15°C
SolubilityDMF: 25 mg/mlDMSO: 25 mg/mlEthanol: 50 mg/mlPBS (pH 7.2): 1 mg/ml
Physical stateLyophilized solid.
pKa (acidity coefficient)13.24±0.46(Predicted)
ColorWhite to off-white
GHS pictogramGHS07,GHS08
Signal wordDanger
GHS hazard statementsH317-H334
GHS precautionary statementsP261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P261-P285-P304+P341-P342+P311-P501
Safety statements (S)22-24/25

Safety & Regulations

GHS classificationDangerH317 (100%): May cause an allergic skin reaction [Warning Sensitization, Skin]P233, P260, P261, P271, P272, P280, P284, P302+P352, P304+P340, P321, P333+P317, P342+P316, P362+P364, P403, and P501 (click each P-code to see the statement)The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.
Hazard Classes and CategoriesSkin Sens. 1 (100%)
Signal wordDanger
GHS pictogramGHS07,GHS08
Safety statements (S)22-24/25
GHS hazard statementsH317-H334
GHS precautionary statementsP261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P261-P285-P304+P341-P342+P311-P501

Applications & Uses

Uses

Has effects similar to mastoparan; binds with high affinity to calmodulin and inhibits sarcoplasmic reticulum calcium-ATPase