L-NMMA is the archetypal competitive NOS inhibitor to which other inhibitors are often compared. It is a relatively non-selective inhibitor of all NOS isoforms. The Ki values for nNOS (rat), eNOS (human), and iNOS (mouse) are approximately 0.18, 0.4, and 6 µM, respectively.Formal Name:...

tetranor-PGDM-d6 contains six deuterium atoms at the 17, 17', 18, 18', 19 and 19' positions. It is intended for use as an internal standard for the quantification of tetranor-PGDM by GC- or LC-mass spectrometry (MS). Prostaglandin D2 (PGD2) is synthesized by hematopoietic-type PGD-synthase (H-PGDS) in mast cells and...

CAY10444 is a sphingosine-1-phosphate receptor 3 (S1P3) antagonist. It inhibits S1P-induced calcium mobilization in CHO cells expressing human S1P3 (IC50 = 11.6 µM). CAY10444 (5 µM) inhibits S1P-induced growth and migration of MH7A rheumatoid fibroblast-like synoviocyte cells. It inhibits the localization and...

Thromboxane B2 (TXB2) is released in substantial quantities from aggregating platelets and metabolized during circulation to 11-dehydro TXB2 and 2,3-dinor TXB2. In rats and rabbits, 2,3-dinor TXB1 has been identified as another urinary metabolite of TXB2. However in human urine, only trace amounts of 2,3-dinor TXB1...