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4-Ethynyl-L-phenylalanine HCl

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4-Ethynyl-L-phenylalanine HCl Basic information

Product Name:
4-Ethynyl-L-phenylalanine HCl
Synonyms:
  • L-Phenylalanine, 4-ethynyl-
  • 4-Ethynyl-L-phenylalanine HCl
  • 4-Ethynyl-L-phenylalanine
  • 4-Ethynylphenylalanine
  • pEthynylphenylalanine,p Ethynylphenylalanine
  • (2S)-2-amino-3-(4-ethynylphenyl)propanoic acid
  • (S)-2-Amino-3-(4-ethynylphenyl)propanoic acid
  • p-Ethynylphenylalanine, 10 mM in DMSO
CAS:
278605-15-5
MF:
C11H11NO2
MW:
189.21
Mol File:
278605-15-5.mol
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4-Ethynyl-L-phenylalanine HCl Chemical Properties

Boiling point:
343.2±37.0 °C(Predicted)
Density 
1.21±0.1 g/cm3(Predicted)
storage temp. 
Store at -20°C
solubility 
DMSO: 2.22 mg/mL (11.73 mM)
form 
Solid
pka
2.18±0.10(Predicted)
color 
Off-white to light yellow
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4-Ethynyl-L-phenylalanine HCl Usage And Synthesis

Uses

p-Ethynylphenylalanine (4-Ethynyl-L-phenylalanine) is a potent, selective, reversible and competitive inhibitor of tryptophan hydroxylase (TPH), with a Ki of 32.6 μM[1]. p-Ethynylphenylalanine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

in vivo

p-Ethynylphenylalanine (30 mg/kg; i.p.) decreases in 5-HT and 5-HIAA levels in the rat midbrain but not in tissue[1].
p-Ethynylphenylalanine does not inhibit the aromatic amino acid decarboxylase[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. DOI:10.1046/j.1471-4159.2000.0742067.x

4-Ethynyl-L-phenylalanine HClSupplier

Amatek Scientific Co. Ltd.
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Beijing Jin Ming Biotechnology Co., Ltd.
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