The UNII (2%2C7-Naphthalenedisulfonic%20acid%2C%206-amino-4-hydroxy-3-((7-sulfo-4-((sulfophenyl)azo)-1-naphthalenyl-%20)azo)-%2C%20tetrasodium%20salt) does not exist.
If you cannot find the substance you're looking for please contact fda-srs@fda.hhs.gov to request a UNII, or you can sign up for a precisionFDA account and submit a new substance registration request using GSRS.
