Ponceau 4R Specifications

Product Name Ponceau 4R
Colour Shade
Synonyms Food Red 7, New Coccine, Cochineal Red A, Brilliant Scarlet 4R, Brilliant Scarlet 3R
Chemical Name trisodium (8Z)-7-oxo-8-[(4-sulfonatonaphthalen-1-yl)hydrazinylidene]naphthalene-1,3-disulfonate
Molecular Formula ---
C.I. No 16255
C.I. Name Acid Red 18
EU and FDA Status Approved | EC Directive 2008/128/EC & FAO/WHO Food & Drug and Nutrition paper 52/1 and 2.
CAS No. 2611-82-7
EINECS No. 220-036-2
Test EEC (Limit)
Total colouring matters calculated as the sodium salt, percent by mass Min. 85
Water insoluble matter, percent by mass Max. 0.20
Combined ether extract, percent by mass Max. 0.20
Unsulfonated Primary aromatic amines, percent by mass (calculated as aniline) Max. 0.01
Subsidiary dyes, percent by mass Max. 1
Total organic compound other than coloring matter, percent by mass
2-naphthol-6,8-di-sulfonic acid
1-naphthylamine-4-sulfonic acid
Max. 0.50
Heavy metals as pb(mg/kg.) Max. 30
Arsenic, (mg/kg.) Max. 3
Lead (mg/kg.) Max. 2
Mercury (mg/kg.) Max. 1
Cadmium (mg/kg.) Max. 1