Green S

Green S

Specification
Product Name Green S
Colour Shade Acid Green 50,Acid Dyes Manufacturer
Synonyms Acid Green 50
Chemical Name Sodium N-(4-((dimethylamino)phenyl)(2-hydroxy-3,6-disulfo-1- Naphthalenyl)-methylene)2,5-cyclohexadien-1-ylidene)-N-methyl Methanaminium.
C.I. No 44090
C.I. Name Food Green 4
FDA Status
CAS No. 3087-16-9
EINECS No. 221-409-2
E. NUMBER E-142
Test EEC (Limit)
Total dye content, percent by mass on dry basis at 105 ± 1°C for 2 hrs.) 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 (calculated as aniline) Max. 0.01
Subsidiary dyes, percent by mass Max. 1
Dye Intermediates, percent by mass
4,4_-bis(dimethylamino)-benzhydryl alcohol
4,4_-bis(dimethylamino)-benzophenone
3-hydroxynaphthalene-2,7-disulfonic acid
Max. 0.10
0.10
0.20
Leuco base, percent by mass Max. 5
Total Heavy metals as Lead(mg/Kg) Max. 40
Arsenic (mg/kg.) Max. 3
Lead (mg/kg.) Max. 2
Mercury (mg/kg.) Max. 1
Cadmium (mg/kg.) Max. 1