Phenazopyridine Price Not Available 25mg Phenazopyridine Supplier Page Catalog Number R047777 Molecular Formula C11H11N5 CAS# 94-78-0 Purity ≥90% Inchi InChI=1S/C11H11N5/c12-10-7-6-9(11(13)14-10)16-15-8-4-2-1-3-5-8/h1-7H,(H4,12,13,14) Inchi Key QPFYXYFORQJZEC-UHFFFAOYSA-N SMILES C1=CC=C(C=C1)N=NC2=C(N=C(C=C2)N)N Size 25mg Supplier Page https://www.musechem.com/product/R047777.html