Blue 1 (Brilliant Blue)

Also known as: Brilliant Blue FCF, FD&C Blue No. 1, CI 42090, PATENT BLUE AE, C.I. ACID BLUE 9, BRILLIANT BLUE FCF, C.I. 42090, C.I. ACID BLUE 9, DISODIUM SALT, D&C BLUE NO. 1, BENZENEMETHANAMINIUM, N-ETHYL-N-(4-((4-(ETHYL((3-SULFOPHENYL)METHYL)AMINO)PHENYL)(2-SULFOPHENYL)METHYLENE)-2,5-CYCLOHEXADIEN-1-YLIDENE)-3-SULFO-, INNER SALT, DISODIUM SALT, ACID BLUE 9, C.I. FOOD BLUE 2, FOOD BLUE NO. 1, BRILLIANT BLUE, DISODIUM ETHYL(4-(P-(ETHYL(M-SULFOBENZYL)AMINO)-ALPHA-(O-SULFOPHENYL)BENZYLIDENE)-2,5-CYCLOHEXADIENE-1-YLIDENE)(M-SULFOBENZYL)AMMONIUM HYDROXIDE INNER SALT

Color additive · E133

Regulatory Status

United States (FDA)

Approved

FDA-approved.

European Union (EFSA)

Approved

Approved in EU. ADI: 6 mg/kg body weight/day.

Safety Profile

Generally considered safe. Low absorption means limited systemic exposure. Both US and EU approve.

Health Concerns

• Chromosomal damage in some in-vitro studies
• Very poorly absorbed — most passes through GI tract
• Rare allergic reactions reported

Commonly Found In

BeveragesCandyIce creamCanned peasBlueberry products

Sources: FDA Substances Added to Food, EFSA opinions, EU Regulation 1333/2008, IARC monographs

SafeCheck provides drug interaction information from FDA-approved product labeling (openFDA). This is for informational purposes only and is not medical advice. Always consult your healthcare provider before making medication decisions.