Ext. D&C Yellow No. 7

**Semantic type:** Indicator, Reagent, or Diagnostic Aid|Organic Chemical

**Synonyms:** - 2-Naphthalenesulfonic acid, 8-hydroxy-5,7-dinitro-, Disodium Salt - Acid Yellow 1 - Dye FDC Yellow No.1 - EXT. D&C YELLOW NO. 7 - FD&C Yellow No. 1 - Japanese Yellow 403-1 - Naphthol Yellow S