Acid orange 6

Acid Orange 6 (CAS 547-57-9) is a synthetic azo dye registered under EC 208-924-8, also known by the trade names Chrysoin S and CI 13015, and classified under CI number 14270. It carries no E-code designation, confirming its restriction to industrial rather than food-contact applications.

In textile dyeing, Acid Orange 6 bonds to protein and polyamide fibres under acidic bath conditions, producing yellow to orange shades with reliable wash fastness. It is also applied in leather tanning operations to achieve uniform surface coloration and in paper manufacturing where consistent hue depth across pulp-based substrates is required.

Acid Orange 6 is supplied as a rust to dark brown powder under HS code 32041200 and is subject to REACH registration obligations for EU-based importers and downstream users. Buyers should confirm lot-specific dye content and heavy metal compliance documentation prior to procurement, particularly for leather and textile end uses.