CAS 17812-46-3 appears in our catalog under these names: Ipratropium Bromide Impurity 36, Ipratropium Bromide EP Impurity F Bromide (Mixture of Isomers), apo-Ipratropium Bromide (mixture of stereoisomers), >95% (HPLC), apo-Ipratropium Bromide, >95% (HPLC). Offered by: Chemat Brand, TRC. Available pack sizes: on request, 25mg, 50mg, 5mg, 10mg.