SHEET /m/phenazopyridine · PubChem CID 4756 · CAS 94-78-0 · REV 2026.07
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Phenazopyridine
from sourceC11H11N5 · 213.24 g/mol
Baridium · Fenazopiridina · Gastracid · Gastrotest
What is Phenazopyridine?
A urinary pain reliever sold as AZO and Pyridium. It is an orange azo dye, and it famously turns urine bright orange. from source
CategoryOTC medicine
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Fig. 1 · 2D structure RDKit
SMILES
C1=CC=C(C=C1)N=NC2=C(N=C(C=C2)N)NWhere you'll find it
Sold over the counter, without a prescription. See the rest of the otc medicine group.