Acid Yellow 246 Chemical Name Acid Yellow 246 C.I. No. – CAS No. 119822-74-1 Synonyms GIALLO ACIDO 246, AUNE ACIDE 246, JAUNE TECTILON HT 2025, TECTILON YELLOW HT 2025, Tectilon Yellow 3R Molecular Formula C26H18N3NaO5S2 Molecular Weight 539.06