(R)-5-Isopropylcarbonyloxymethyl Tolterodine-d7 is labelled (R)-5-Isopropylcarbonyloxymethyl Tolterodine (I824252) which is a possible impurity arising in the synthesis of Fesoterodine (F321300).
Molecular Formula:C26H30D7NO3
Molecular Weight:418.62
Storage and Stability:Store at -20°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap.