INS No. 142
CAS No. 3087-16-9
CI Food Green 4
CI No. 44090
Green S is a triarylmethane dye that occurs as dark blue or dark green powder or granules. It is principally the sodium salt of N-[4-[[4-(dimethylamino)phenyl](2- hydroxy-3,6-disulfo-1-naphthalenyl)-methylene]-2,5-cyclohexadien-1- ylidene]-N-methylmethanaminium and subsidiary coloring matters together with sodium chloride and/or sodium sulfate as the principal uncolored compounds. Green S may be converted to the corresponding aluminum lake.
Typical applications include beverages, confectionery, bakery, dairy fats and oil, meat, seafood, snacks, dry mixes and seasonings, fruit preparation, and convenient foods.
JECFA (Joint FAO/WHO Expert Committee on Food Additives), 1974. Toxicological evaluation of some food colors, thickening agents, and certain other substances. 18th Report. WHO Techn. Report Series, 1974, No. 557. FAO Nutrition Meetings Report Series, 1974, No. 54. Available online
EFSA Panel on Food Additives and Nutrient Sources added to Food (ANS); Scientific Opinion on the re-evaluation of Green S (E 142) as a food additive. EFSA Journal 2010;8(11):1851. [32 pp.]. Available online