Metoprolol acid is a urinary metoprolol metabolite and doesn't work pharmacologically.

H 77 is a new effective renin inhibitor. H 77 is angiotensinogen (6-13)-octapeptide in which the peptide bond -CO-NH- at the Leu(9)-Leu(11) linkage is replaced by a -CH2-NH- bond.

TG11-77 HCl is a novel, Potent, Selective, Water Soluble, Brain-Permeable EP2 Receptor Antagonist. TG11-77 HCl has a Schild KB of 9.7 nM on EP2, a water solubility of 2.5 mM, a brain-to-plasma ratio of 0.4, and a plasma half-life of 2.4 h in mice. TG11-77 HCl are representative second generation EP2 antagonists with improved pharmacodynamic and pharmacokinetic properties.

TG11-77 free base is a novel, Potent, Selective, Water Soluble, Brain-Permeable EP2 Receptor Antagonist. TG11-77 free base has a Schild KB of 9.7 nM on EP2, a water solubility of 2.5 mM, a brain-to-plasma ratio of 0.4, and a plasma half-life of 2.4 h in mice. TG11-77 free base are representative second generation EP2 antagonists with improved pharmacodynamic and pharmacokinetic properties.

H77-77, a monoamine oxidase (MAO) inhibitor, produces a pronounced protection against phenelzine within the serotonergic and noradrenergic neurons in rats.

21-Deoxycortisol is a corticosteroid metabolite of 17-hydroxyprogesterone produced in the adrenal glandvia11-hydroxylation by 11β-hydroxylase.1,2Serum levels of 21-deoxycortisol are elevated in patients with congenital adrenal hyperplasia that are heterozygous for mutations inCYP2A21, the gene encoding steroid 21-hydroxylase, and have been used as a biomarker for the detection of 21-hydroxylase deficiencies. 1.Fiet, J., Villette, J.-M., Galons, H., et al.The application of a new highly-sensitive radioimmunoassay for plasma 21-deoxycortisol to the detection of steroid-21-hydroxylase deficiencyAnn. Clin. Biochem.31(Pt. 1)56-64(1994) 2.Cristoni, S., Cuccato, D., Sciannamblo, M., et al.Analysis of 21-deoxycortisol, a marker of congenital adrenal hyperplasia, in blood by atmospheric pressure chemical ionization and electrospray ionization using multiple reaction monitoringRapid Commun. Mass Spectrom.18(1)77-82(2004)