1.0 2016-05-25 18:27:47 UTC 2026-08-18 08:07:22 UTC Phenazopyridine SmallMolecule Phenazopyridine is an organic compound with the chemical formula C11H11N5 and an average molecular weight of 213.24 g/mol. Phenazopyridine belongs to the aminopyridines and derivatives, a subclass of pyridines and derivatives within the organic compounds. It is further categorized under the superclass of organoheterocyclic compounds. The compound is found in or released from 19 recorded sources. Within healthcare, pharmaceuticals, and veterinary products, it is used in urologicals. In the category of food, food processing, and cookware, it is associated with food preservation. It is also found in household items, specifically watch chains, and in household cleaning and consumer products, including soap detergents, perfumes within detergents and soaps, bleaching agents, cigar cigarettes, other smoking requisites, and one additional source. Furthermore, it is released from electrical and electronic equipment, including electric switches, antennas, coils, conductors or conductive bodies characterised by the conductive materials, electrically stimulated smoking devices, and five more sources. Regarding its biological activity, phenazopyridine acts as an inhibitor of the sodium channel protein type 1 subunit alpha (SCN1A), which is its single recorded protein target. The recorded route of exposure for this compound is oral. C11H11N5 213.2385 213.101445377 3-[(E)-2-phenyldiazen-1-yl]pyridine-2,6-diamine phenazopyridine 94-78-0 NC1=NC(N)=C(C=C1)\N=N\C1=CC=CC=C1 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)/b16-15+ QPFYXYFORQJZEC-FOCLMDBBSA-N Organic compounds Organoheterocyclic compounds Pyridines and derivatives Aminopyridines and derivatives Aminopyridines and derivatives Azacyclic compounds Azo compounds Benzene and substituted derivatives Dihydropyridines Heteroaromatic compounds Hydrocarbon derivatives Imidolactams Organopnictogen compounds Primary amines Propargyl-type 1,3-dipolar organic compounds Amine Aminopyridine Aromatic heteromonocyclic compound Azacycle Azo compound Benzenoid Dihydropyridine Heteroaromatic compound Hydrocarbon derivative Hydropyridine Imidolactam Monocyclic benzene moiety Organic 1,3-dipolar compound Organic nitrogen compound Organonitrogen compound Organopnictogen compound Primary amine Propargyl-type 1,3-dipolar organic compound Aromatic heteromonocyclic compounds Detected and Not Quantified Phenazopyridine Drug Metabolism Action Pathway SMP0143768 logp 2.69 logp 2.31 ALOGPS logs -3.02 ALOGPS solubility 2.02e-01 g/l ALOGPS logp 2.69 ChemAxon pka_strongest_acidic 18.85 ChemAxon pka_strongest_basic 6.86 ChemAxon iupac 3-[(E)-2-phenyldiazen-1-yl]pyridine-2,6-diamine ChemAxon average_mass 213.2385 ChemAxon mono_mass 213.101445377 ChemAxon smiles NC1=NC(N)=C(C=C1)\N=N\C1=CC=CC=C1 ChemAxon formula C11H11N5 ChemAxon 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)/b16-15+ ChemAxon inchikey QPFYXYFORQJZEC-FOCLMDBBSA-N ChemAxon polar_surface_area 89.65 ChemAxon refractivity 68.25 ChemAxon polarizability 22.66 ChemAxon rotatable_bond_count 2 ChemAxon acceptor_count 5 ChemAxon donor_count 2 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon #<HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f3bb3e01910> DB01438 4756 4592 BE0000141