A5330 Sigma

N-Acetyl-L-tryptophan 3,5-bis(trifluoromethyl)benzyl ester

≥99% (TLC), powder

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Synonym: L-732,138

Description

Biochem/physiol Actions

Competitive substance P receptor antagonist. It is approximately 1000-fold more potent at cloned human NK-1 receptors than at cloned human NK-2 and NK-3 receptors; and approximately 200-fold more potent at human NK-1 receptors than at rat NK-1 receptors. The IC50 for the human NK-1 receptor expressed in CHO cells is approximately 2 nM.

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