Ponceau 4R

Specification
Product Name Ponceau 4R
Colour Shade
Synonyms Acid Red 18
Chemical Name ( Trisodium 2-hydroxy-1-(4-sulfonato-1-naphtylazo)- naphtalene-6,8-disulfonate
C.I. No 16255
C.I. Name Food Red 7
FDA Status
CAS No. 2611-82-7
EINECS No. 220-036-2
E. NUMBER E-124
Test EEC (Limit)
Total colouring matters calculated as the sodium salt, percent by mass. Min. 80
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. Max. 0.01
Subsidiary dyes, percent by mass. Max. 1
Organic compound other than colouring matter, percent by mass, MAX.
4-aminonaphthalene-1-sulfonic acid
7-hydroxynaphthalene-1-3-sulfonic acid
3-hydroxynaphthalene-2,7-disulfonic acid
6-hydroxynaphthalene-2-sulfonic acid
7-hydroxynaphthalene-1,3-6- trisulfonic acid
Max. 0.50
Heavy metals as pb(mg/kg) Max. 40
Arsenic (mg/kg.) Max. 3
Lead (mg/kg.) Max. 2
Mercury (mg/kg.) Max. 1
Cadmium (mg/kg.) Max. 1