D-Kynurenine is an antagonist of hydroxycarboxylic acid receptor 3 HCA3/GPR109B and a metabolite of D-tryptophan. It increases levels of intracellular calcium and decreases forskolin-stimulated production of cAMP in CHO cells expressing human HCA3/GPR109B. D-Kynurenine increases expression of vimentin and decreases expression of E-cadherin in 95D lung cancer cells. It has been used as a substrate in fluorometric assays for D-amino acid oxidase activity.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.