2a131 | — | Patent Blue V | - Active substancePatent Blue V
- Characterisation of the active substanceName: calcium or sodium compound of [4-(α-(4-diethylaminophenyl)-5-hydroxy-2,4-disulfophenyl-methylidene) 2,5-cyclohexadien-1-ylidene] diethylammonium hydroxide inner salt and subsidiary colouring matters together with sodium chloride and/or sodium sulphate and/or calcium sulphate as the principal uncoloured components. The potassium salt is also permitted.
- Additive compositionPurity criteria: minimum of 90 % of total colouring matters, calculated as the sodium, calcium or potassium salts.Leuco base: not more than 1,0 %.
- Method of Analysis
- For the quantification of total colouring matters content of Patent Blue V in the feed additive and feedingstuffs: spectrophotometry at 638 nm (JECFA monograph No 1, Vol. 4 method recommended by Commission Directive 2008/128/EC).
| All non-food producing animals | — | — | 250 | For user safety: breathing protection, safety glasses and gloves should be worn during handling. | 25 July 2023 |