Comparing E133 - Brilliant blue FCF vs E132 - Indigotine

Synonyms
E133
Brilliant blue FCF
FD&C Blue 1
FD and C Blue 1
Blue 1
fd&c blue no. 1
Blue 1 lake
E132
Indigotine
indigo carmine
FD&C Blue 2
FD and C Blue 2
C.I. Food Blue 2
Blue 2 lake
Blue 2
Functions
Products

Found in 20,793 products

Found in 4,234 products

Search rank & volume
#10917.6K / mo🇺🇸U.S.
#2053.7K / mo🇺🇸U.S.
Awareness score

×0.12
under-aware

×0.13
under-aware

Search volume over time

Interest over time for 7 keywords in U.S. during the last 10 years.

Interest over time for 8 keywords in U.S. during the last 10 years.

Popular questions
  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  1. Where to watch blue lock season 2?

    Indigotine (E132, also called indigo carmine or FD&C Blue No. 2) is a synthetic blue dye found in foods and drinks; look for 'E132' or its names on ingredient lists of blue-colored products.

  2. What 2 colors make blue?

    In foods, blue is typically supplied directly by Indigotine (E132) rather than mixed from other dyes; manufacturers instead mix E132 with yellow (e.g., tartrazine/E102) to make green or with red dyes to make purple.

  3. When is blue lock season 2 coming out?

    Unrelated to additives, but Indigotine (E132) is an approved food color in the US and EU with an acceptable daily intake of 5 mg/kg body weight per day.

  4. When is blue lock season 2?

    Indigotine (E132) is a water-soluble blue colorant used in beverages, confectionery, and desserts, and it also serves as a pH indicator.

  5. Where can i watch blue lock season 2?

    To find Indigotine (E132) in products, check labels of blue-colored foods for 'E132', 'Indigotine/indigo carmine', or 'FD&C Blue No. 2'.