Is E133 Halal or Haram? Brilliant Blue Facts

featured - Is E133 Halal or Haram?

Key Takeaways

๐Ÿ“Œ E133 Brilliant Blue is a synthetic blue food coloring used widely in the food, pharmaceutical, and cosmetic industries.
๐Ÿ“Œ It is generally considered halal due to its synthetic origin, making it suitable for consumption by those following halal dietary guidelines.
๐Ÿ“Œ The Acceptable Daily Intake (ADI) for E133 is 10 mg/kg of body weight per day, with variations in specific countries’ guidelines.

When it comes to food coloring, E133 Brilliant Blue is a name that frequently pops up in the food industry. This synthetic dye is not only vibrant but also versatile, finding its way into numerous products we encounter daily.

Through this extensive guide, we will delve into the bright world of E133, exploring its chemical nature, sources, potential side effects,halal status, and much more.

What Is E133 Brilliant Blue?

E133, also known as Brilliant Blue FCF, is a synthetic organic compound used primarily as a blue food coloring. It is known for its strong tinctorial strength and the vivacity of the blue hue it imparts to food and other substances.

The utilization of E133 extends beyond food, and coloring products in various industries like pharmaceuticals and cosmetics. But what makes up this brilliantly blue compound on a molecular level?

Chemical Structure

The chemical structure of E133 Brilliant Blue is quite fascinating. It comprises a complex molecular arrangement with the formula C37H34N2Na2O9S3. The structural formula reveals a diazo compound, which means it contains a characteristic azo group (-N=N-). This azo group is crucial for the dyeโ€™s coloring property, facilitating the vibrant blue hue that E133 is famous for.

e133 brilliant blue chemical structure

What Is E133 Made From?

The manufacture of E133 Brilliant Blue involves a series of chemical reactions. Initially, a compound known as aniline, derived from benzene, undergoes diazotization, reacting with nitrous acid to form diazonium salt.

This salt then reacts with Naphthalene-2-sulfonic acid, leading to the formation of E133. The synthesis of E133 is a testimony to human ingenuity in creating substances that add aesthetic appeal to our daily lives.

Possible Side Effects

With every synthetic compound, comes a realm of possible side effects. Some studies have indicated a potential link between E133 consumption and hyperactivity, especially in children.

However, the evidence is not robust enough to draw definitive conclusions. Moreover, allergic reactions could occur in individuals sensitive to synthetic dyes. Itโ€™s always advisable to be informed about what goes into our bodies, isnโ€™t it?

Regulations and Guidelines

The use of E133 is governed by strict regulations worldwide to ensure consumer safety. In the European Union, E133 is approved as a food additive under the designation E133. The U.S. Food and Drug Administration (FDA) also approves its use, albeit with certain restrictions.

Regulatory bodies like the European Food Safety Authority (EFSA) and FDA continuously monitor and evaluate the safety data surrounding E133 to ensure public health. The Acceptable Daily Intake (ADI) level for E133 or Brilliant Blue FCF is 10 mg/kg bw/day. Source.

Dosage and Administration

The dosage and administration of E133 are determined by the regulatory guidelines within each country. Generally, the acceptable daily intake (ADI) is specified as a certain milligram per kilogram of body weight. It’s essential to adhere to these guidelines to enjoy the colorful appeal of E133 safely.

Is E133 Halal or Haram?

The Halal or Haram status of E133 is a topic of interest in many Muslim communities. Since E133 is synthesized from chemical substances and not derived from animals, it is generally considered Halal. However, it is always advisable to check the certification from reliable Halal certification bodies to be on the safe side.

Find out more:
Is E132 Indigo Carmine Halal or Haram?
Is E140 Halal or Haram?


The journey through the vibrant world of E133 Brilliant Blue reveals its extensive use and significance in our daily lives. Its chemical complexity, synthetic origin, and regulatory guidelines echo the intricate relationship between science, industry, and consumer safety. As we color our world with E133, staying informed is the key to safe and delightful experiences.

Allahu A’lam (Allah Knows Best)


What is the source of E133?

E133 is synthesized from chemical compounds, primarily aniline and naphthalene-2-sulfonic acid through a series of chemical reactions.

Is E133 safe for consumption?

Yes, E133 is deemed safe for consumption within established ADI guidelines by reputable food safety authorities like the FDA and EFSA.

What are some common food products that contain E133?

E133 is commonly found in candies, beverages, bakery products, and even pharmaceuticals and cosmetics.

What is the CAS number of E133?

The CAS number for E133 Brilliant Blue is 3844-45-9.

Is E133 banned in any country?

The approval and usage of E133 vary by country, adhering to the regulatory guidelines set by their respective food safety authorities. E133 is banned in Austria, Sweden, Switzerland, France, Germany and Norway.

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