Solvent Yellow 25 Chemical Name Solvent Yellow 25 C.I. No. 18690 CAS No. 5601-29-6 Synonyms Bricosol Yellow K2R, Neozapon Yellow 190, Orasol Yellow 3R, Aizen Spilon Yellow 3RH Special Molecular Formula C17H14N4O3 Molecular Weight 322.32