4-Ethynyl-L-phenylalanine hydrochloride

Modify Date: 2024-01-11 19:46:56

4-Ethynyl-L-phenylalanine hydrochloride Structure
4-Ethynyl-L-phenylalanine hydrochloride structure
Common Name 4-Ethynyl-L-phenylalanine hydrochloride
CAS Number 188640-63-3 Molecular Weight 225.67
Density N/A Boiling Point N/A
Molecular Formula C11H12ClNO2 Melting Point N/A
MSDS N/A Flash Point N/A

 Use of 4-Ethynyl-L-phenylalanine hydrochloride


4-Ethynyl-L-phenylalanine hydrochloride is a selective, reversible, potent and competitive inhibitor of tryptophan hydroxylase (TPH). 4-Ethynyl-L-phenylalanine hydrochloride is a competitive inhibitor with regard to the substrate tryptophan, with a Ki of 32.6 μM. 4-Ethynyl-L-phenylalanine hydrochloride selectively and reversibly inhibits the biosynthesis of serotonin[1].

 Names

Name 4-Ethynyl-L-phenylalanine hydrochloride

 4-Ethynyl-L-phenylalanine hydrochloride Biological Activity

Description 4-Ethynyl-L-phenylalanine hydrochloride is a selective, reversible, potent and competitive inhibitor of tryptophan hydroxylase (TPH). 4-Ethynyl-L-phenylalanine hydrochloride is a competitive inhibitor with regard to the substrate tryptophan, with a Ki of 32.6 μM. 4-Ethynyl-L-phenylalanine hydrochloride selectively and reversibly inhibits the biosynthesis of serotonin[1].
Related Catalog
Target

Ki: 32.6 μM (TPH)[1]

In Vivo 4-Ethynyl-L-phenylalanine hydrochloride (30 mg/kg; i.p.) decreases in 5-HT and 5-HIAA levels in the rat midbrain but not in tissue[1]. 4-Ethynyl-L-phenylalanine hydrochloride is not inhibiting the aromatic amino acid decarboxylase[1]. 4-Ethynyl-L-phenylalanine hydrochloride has a low affinity for various recombinant 5-HT receptors[1]. Animal Model: Male Sprague-Dawley rats (200 g)[1] Dosage: 30 mg/kg Administration: Intraperitoneal injection Result: Decreased in 5-HT and 5-HIAA levels in the rat midbrain.
References

[1]. Stokes AH, et al. p-ethynylphenylalanine: a potent inhibitor of tryptophan hydroxylase. J Neurochem. 2000 May;74(5):2067-73.

 Chemical & Physical Properties

Molecular Formula C11H12ClNO2
Molecular Weight 225.67
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