Patent Blue V

Product Name Patent Blue V
Colour Shade
Synonyms Food Blue – 5
Chemical Name Sodium Salt of [4-a-[4-(Diethylamino)-5′-Hydroxy-2′,4′-Disulphonatobenzhydrylidene] Cyclohexa-2,5-Dien-1-Ylidene]Diethyl Ammonium Hydroxide Inner salt
C.I. No 42051
C.I. Name Acid Blue - 3
FDA Status ----
CAS No. 20262-76-4
EINECS No. 222-573-8
E. NUMBER E - 131
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 Max. 0.01
Subsidiary dyes, percent by mass Max. 1
Total organic compound other than colouring matters, percent by mass
(a) 3 Hydroxy benzaldyhyde
(b) 3 Hydroxy benzoic acid
(c) 3 Hydroxy 4 sulfonic acid,N,N-diethyle amino benzene sulfonic acid
(d) N,N-diethyle amino benzene sulfonic acid
Max. 0.50
Leuco base, percent by mass Max. 4
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
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