Fast Green FCF



FD&C Green No. 3
INS No. 143
CAS No. 2353-45-9
CI Food Green 3
CI No. 42053

Physical Description

Fast green FCF is a bluish green food dye that provides a dark green shade in applications. The color is principally the disodium salt of N-ethyl-N-[4- [[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](4-hydroxy-2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfobenzene -methanaminium hydroxide. It is soluble in water, sparingly soluble in ethanol and insoluble in vegetable oils.

Common Uses

Fast Green FCF provides a sea green color to various foods including cereal, ice cream, sherbet, drink mixers, and baked goods. It is also used in pharmaceutical products and cosmetics.


JECFA (2017)

Codex GSFA Provisions

Fast green FCF is added to foods and beverages at concentrations up to a maximum permitted level (MPL) as established by the Codex Alimentarius Commission and published in the General Standard of Food Additives (GSFA). For a full list of GSFA food categories and max levels for Fast green FCF (INS No. 143), click here.

Regulatory Approvals

USA: FD&C Green No. 3, along with its aluminum lake (21 CFR 82.203), are subject to certification and may be safely used for coloring foods (including dietary supplements) generally (21 CFR 74.203), drugs generally (21 CFR 74.1203) and cosmetics generally (21 CFR 74.2203) in amounts consistent with GMP

JECFA: ADI of 0-25 mg/kg body weight (84th Report; 2017)

Safety Assessment

Fast green FCF is a permitted as a color in Japan, the USA, and other regions. JECFA re-evaluated the color in 2017 and concluded that Fast Green FCF is not carcinogenic. Newly available evidence indicates that there is no concern with respect to genotoxicity of Fast Green FCF. In its re-evaluation, JECFA concluded that the new data that had become available since the previous evaluation gave no reason to revise the ADI and confirmed the ADI of 0–25 mg/kg bw. JECFA also concluded that dietary exposures to Fast Green FCF for adolescents and all other age groups do not present a health concern.

Safety Reviews

Joint FAO/WHO Expert Committee on Food Additives (2017). Evaluation of certain food additives. WHO Tech. Rept. Ser. No.1007. Available online.