11-trans Leukotriene C4 - CAS 74841-69-3

11-trans Leukotriene C4 (11-trans LTC4) is a C-11 double bond isomer of LTC4. LTC4 undergoes slow temperature-dependent isomerization to 11-trans LTC4 during storage. 11-trans LTC4 is produced in smaller amounts relative to LTC4 in ionophore-stimulated HMC-1 cells (a human mast cell line) and equine eosinophils, but not in human neutrophils or RBL-1 cells. It is nearly equipotent with LTC4 for contraction of guinea pig parenchymal and ileum. In a radioligand binding assay using guinea pig ileum as a cysteinyl leukotriene receptor preparation, the pKis for LTC4 and 11-trans LTC4 were determined to be 6.42 and 6.58, respectively.

Others, Endogenous Metabolite

Metabolism, Others

74769

C30H47N3O9S

625.78

CCCCC\C=C/C\C=C\C=C\C=C\[C@@H](SC[C@H](NC(=O)CC[C@H](N)C(O)=O)C(=O)NCC(O)=O)[C@@H](O)CCCC(O)=O

-20°C

Ice Packs

Small Compound