d phenylalanine

4-Fluoro-D-phenylalanine HCl (4-Fluorophenylalanine) is an amino acid salt.

D-Phenylalanine, a necessary aromatic amino acid, is a precursor of thyroxine, dopamine, melanin, and noradrenaline (norepinephrine).

4-(Trifluoromethyl)-D-phenylalanine is a useful organic compound for research related to life sciences. The catalog number is T67196 and the CAS number is 114872-99-0.

2,4-Dichloro-D-phenylalanine is a useful organic compound for research related to life sciences. The catalog number is T65691 and the CAS number is 114872-98-9.

N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-2,4-difluoro-D-phenylalanine is a useful organic compound for research related to life sciences. The catalog number is T66882 and the CAS number is 1217820-78-4.

(R)-1,2,3,4-Tetrahydro-3-isoquinolinecarboxylic acid, a constrained phenylalanine (Phe) analogue, exhibits the capacity to adopt beta-bend and helical structures, facilitating a preferred side-chain orientation within the peptide.

2-(Trifluoromethyl)-D-phenylalanine is a useful organic compound for research related to life sciences. The catalog number is T65713 and the CAS number is 130930-49-3.

N-Acetyl-D-phenylalanine is a useful organic compound for research related to life sciences. The catalog number is T64864 and the CAS number is 10172-89-1.

(S)-2-Hydroxy-3-phenylpropanoic acid (L-(−)-3-Phenyllactic acid) is a chiral aromatic compound involved in phenylalanine metabolism. It is likely produced from phenylpyruvate via the action of lactate dehydrogenase. The D-form of this organic acid is typically derived from bacterial sources while the L-form is almost certainly endogenous. Levels of phenyllactate are normally very low in blood or urine. High levels of PLA in the urine or blood are often indicative of phenylketonuria (PKU) and hyperphenylalaninemia (HPA). PKU is due to lack of the enzyme phenylalanine hydroxylase (PAH) so that phenylalanine is converted not to tyrosine but to phenylpyruvic acid (a precursor of phenylacetate).

L-Tyrosine-13C9,15N is intended for use as an internal standard for the quantification of L-tyrosine by GC- or LC-MS. L-Tyrosine is a non-essential amino acid.1It is produced by hydroxylation of phenylalanine by phenylalanine hydroxylase but can also be obtained from dietary sources or degradation of endogenous proteins, resulting in L-tyrosine release.1,2L-Tyrosine is a precursor in the biosynthesis of catecholamine neurotransmitters, melanins, and thyroid hormones.3Plasma, skeletal muscle, and erythrocyte levels of L-tyrosine are decreased in patients with chronic kidney disease.1 1.Kopple, J.D.Phenylalanine and tyrosine metabolism in chronic kidney failureJ. Nutr.137(6 Suppl 1)1586S-1590S(2007) 2.Webster, D., and Wildgoose, J.Tyrosine supplementation for phenylketonuriaCochrane DB Syst. Rev.2013(6)CD001507(2013) 3.Slominski, A., and Paus, R.Towards defining receptors for L-tyrosine and L-DOPAMol. Cell Endocrinol.99(2)C7-C11(1994)

L-Phenylalanine-15N ((S)-2-Amino-3-phenylpropionic acid-15N) is the 15N-labeled L-Phenylalanine. L-Phenylalanine is an essential amino acid isolated from Escherichia coli . L-Phenylalanine is a α2δ subunit of voltage-dependent Ca + channels antagonist with a K i of 980 nM. L-phenylalanine is a competitive antagonist for the glycine- and glutamate-binding sites of N-methyl-D-aspartate receptors (NMDARs) ( K B of 573 μM ) and non-NMDARs , respectively. L-Phenylalanine is widely used in the production of food flavors and pharmaceuticals.