Uncategorized Nitazoxanide-D4 by Proton-pump inhibitor Jul 28, 2017 0 Comment Catalog No.: MQ-D1078 CAS No. 55981-09-4 (unlabelled) Formula: C12H5D4N3O5S Purity: 99% Availability: In stock Category: Isotope labelled standard THZ1 (Hydrochloride)