Description: Tacrolimus-13C-d2 is the 13C and deuterated compound of Tacrolimus. Smiles: [2H]\[13C]([2H])=C/C[C@@H]1\C=C(C)\C[C@H](C)C[C@H](OC)[C@H]2O[C@](O)([C@H](C)C[C@@H]2OC)C(=O)C(=O)N2CCCC[C@H]2C(=O)O[C@@H]([C@H](C)[C@@H](O)CC1=O)C(\C)=C\[C@@H]1CC[C@@H](O)[C@@H](C1)OC

FK-506-13C-d2 contains two deuterium atoms located on the carbon-13 bond. It is intended for use as an internal standard for the quantification of FK-506 (Cay-10007965) by GC- or LC-MS. FK-506 is a potent, clinically-useful immunosuppressant in the same molecular class as cyclosporin A and rapamycin. Its mechanism...