Exatecan-d₅ mesylate  (Synonyms: DX8951f-d₅; Deuterated labeled Exatecan mesylate)

Exatecan-d₅ mesylate is deuterium labeled Exatecan mesylate (HY-13631A). Exatecan mesylate is a DNA topoisomerase I inhibitor, with an IC₅₀ of 0.975 μg/mL^[1].

Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

536.58

C₂₅H₂₁D₅FN₃O₇S

2819276-88-3

169869-90-3

Solid

Yellow to brown

O=S(C)(O)=O.O=C1[C@](O)(C(C([2H])([2H])[2H])([2H])[2H])C2=C(CO1)C(N3CC4=C5C6=C(CC[C@@H]5N)C(C)=C(F)C=C6N=C4C3=C2)=O

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 2 years; -20°C, 1 year (sealed storage, away from moisture and light)

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year (sealed storage, away from moisture and light). When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

• [1]. Mitsui I, et al. A new water-soluble camptothecin derivative, DX-8951f, exhibits potent antitumor activity against human tumors in vitro and in vivo. Jpn J Cancer Res. 1995 Aug;86(8):776-82.  [Content Brief]