Stable Isotopes

11-dehydro Thromboxane B2-d4 contains 4 deuterium atoms at the 3, 3′, 4, and 4′ positions and is intended for use as an internal standard for the quantification of 11-dehydro TXB2 by GC- or LC-mass spectrometry. TXB2 is released in substantial

11-dehydro Thromboxane B2-d4 contains 4 deuterium atoms at the 3, 3′, 4, and 4′ positions and is intended for use as an internal standard for the quantification of 11-dehydro TXB2 by GC- or LC-mass spectrometry. TXB2 is released in substantial

11-Deoxycorticosterone-2,3,4-¹³C₃ solution.

11-Deoxycortisol-2,2,4,6,6-d₅.

11-Deoxycortisol-2,3,4-¹³C₃ solution.

11β-Hydroxy-4-androstene-3,17-dione-9,11,12,12-d₄.

Contains four deuterium atoms at the 3, 3', 4, and 4' positions. Intended for use as an internal standard for the quantification of 11β-PGF2α by GC- or LC-mass spectrometry. The primary plasma metabolite of PGD2 in vivo. Normal human urinary

Contains four deuterium atoms at the 3, 3', 4, and 4' positions. Intended for use as an internal standard for the quantification of 11β-PGF2α by GC- or LC-mass spectrometry. The primary plasma metabolite of PGD2 in vivo. Normal human urinary

13,14-dihydro-15-keto Prostaglandin E2 (13,14-dihydro-15-keto PGE2) is a metabolite of PGE2 biosynthesized by the enzymes 15-hydroxy PGDH and 15-oxo-PG δ13-reductase. This compound accumulates to detectable levels, and then undergoes further

Contains four deuterium atoms at the 3, 3', 4, and 4' positions. Intended for use as an internal standard for the quantification of 13,14-dihydro-15-keto PGF2α by GC- or LC-mass spectrometry. 13,14-dihydro-15-keto PGF2α is the first prominent plasma

Contains four deuterium atoms at the 3, 3', 4, and 4' positions. Intended for use as an internal standard for the quantification of 13,14-dihydro-15-keto PGF2α by GC- or LC-mass spectrometry. 13,14-dihydro-15-keto PGF2α is the first prominent plasma

16-α-Hydroxyestrone-2,3,4-¹³C₃.