Comparing E102 - Tartrazine vs E133 - Brilliant blue FCF
Overview
Synonyms
Products
Found in 23,316 products
Found in 20,793 products
Search rank & volume
Awareness score
Search volume over time
Interest over time for 12 keywords in U.S. during the last 10 years.
Interest over time for 7 keywords in U.S. during the last 10 years.
Popular questions
Is yellow 5 bad for you?
At permitted food-use levels, tartrazine (FD&C Yellow 5) is considered safe by regulators (ADI up to 7.5 mg/kg body weight/day). A small number of people—especially those with aspirin sensitivity—may have hives or asthma-like reactions, and the EU requires a label about possible effects on activity and attention in children.
What is yellow 5 made of?
It is a synthetic azo dye: the trisodium salt of a sulfonated aromatic azo compound based on a pyrazolone ring (C.I. 19140). It is produced from petroleum-derived intermediates such as sulfonated anilines and a pyrazolone derivative.
Is yellow 5 bad?
For most consumers, no—it's approved and considered safe at typical dietary intakes. Rare hypersensitivity reactions can occur, and some children may be susceptible to small, reversible effects on behavior.
What does yellow 5 do to your body?
It primarily provides color and is largely excreted, with a small portion metabolized by gut bacteria before elimination. In sensitive individuals it can trigger hives or wheezing, and some children may experience mild, short-lived effects on activity or attention.
How is yellow 5 made?
Industrially, sulfanilic acid (or similar sulfonated anilines) is diazotized and azo-coupled to a pyrazolone derivative, then neutralized to form the trisodium salt. Lake forms are made by precipitating the dye onto an insoluble substrate such as aluminum hydroxide.
What is blue 1 made of?
A synthetic triarylmethane dye used as a food color; it's the disodium salt of a sulfonated aromatic compound and is water‑soluble. An insoluble 'lake' form is made by depositing the dye onto aluminum hydroxide for use in fats and coatings.
What does blue 1 do to your body?
At typical dietary levels it has no known physiological effect; most ingested Blue 1 is poorly absorbed and is excreted. Rarely, sensitive individuals may have allergic-type reactions or temporary blue-green stool/urine.
Is blue 1 dye bad for you?
No—major regulators (FDA, EFSA, JECFA) consider it safe at permitted levels, with an EFSA ADI of 6 mg/kg body weight per day. Adverse reactions are uncommon and usually limited to rare hypersensitivity.
How is blue 1 made?
It’s synthesized from petroleum‑derived aromatic compounds by constructing a triarylmethane core, then sulfonating and oxidizing it to a water‑soluble disodium salt. The 'lake' form is produced by precipitating the dye onto aluminum hydroxide.
Does blue 1 cause cancer?
Current evidence does not show that Blue 1 causes cancer at permitted food-use levels. Long-term animal studies and evaluations by EFSA/JECFA have not identified carcinogenic or genotoxic concerns.