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(D-Lys(nicotinoyl)¹,β-(3-pyridyl)-Ala³,3,4-dichloro-D-Phe⁵,Asn⁶,D-Trp⁷·⁹,Nle¹¹)-Substance P trifluoroacetate salt
H-D-Lys(nicotinoyl)-Pro-β-(3-pyridyl)-Ala-Pro-3,4-dichloro-D-Phe-Asn-D-Trp-Phe-D-Trp-Leu-Nle-NH₂ trifluoroacetate salt


Product No. Pack Size Available ADS InfoAnalytical Data Sheet List Price Online Order Price
4031291.0001 1 mg Request lead time  
CHF 158.00
CHF 146.94 (7%)
4031291.0005 5 mg Request lead time  
CHF 630.00
CHF 585.90 (7%)


Spantide II is even more potent as a substance P antagonist than spantide I and less effective in releasing histamine from mast cells. Of further advantage is the negligible neurotoxicity of spantide II.
Catalog Number H-8310
APC Number 70-1-87
Synonyms Spantide II
Molecular Formula C₈₆H₁₀₄Cl₂N₁₈O₁₃
Relative Molecular Mass 1668.79
CAS Registry Number 129176-97-2
Source Synthetic
Storage Conditions -20 ± 5 °C