For the Sonic the Hedgehog character, see E-102 Gamma

Tartrazine (otherwise known as E number

E number

E numbers are number codes for food additives that have been assessed for use within the European Union . They are commonly found on food labels throughout the European Union. Safety assessment and approval are the responsibility of the European Food Safety Authority...

 E102, C.I.

Colour Index International

Colour Index International is a reference database jointly maintained by the Society of Dyers and Colourists and the American Association of Textile Chemists and Colorists. It was first printed in 1925 but is now published exclusively on the web...

 19140, or FD&C Yellow 5) is a synthetic lemon yellow

Lemon (color)

Lemon or lemon yellow is a color somewhat resembling yellow and named after the fruit. The color lemon is a representation of the color of the outer skin of a lemon.The first recorded use of lemon as a color name in English was in 1598....

 azo

Azo compound

Azo compounds are compounds bearing the functional group R-N=N-R', in which R and R' can be either aryl or alkyl. IUPAC defines azo compounds as: "Derivatives of diazene , HN=NH, wherein both hydrogens are substituted by hydrocarbyl groups, e.g. PhN=NPh azobenzene or diphenyldiazene." The more...

 dye

Dye

A dye is a colored substance that has an affinity to the substrate to which it is being applied. The dye is generally applied in an aqueous solution, and requires a mordant to improve the fastness of the dye on the fiber....

 used as a food coloring

Food coloring

Food coloring is a substance, liquid or powder, that is added to food or drink to change its color. Food coloring is used both in commercial food production and in domestic cooking...

. It is water soluble and has a maximum absorbance in an aqueous solution at 427±2 nm.

Tartrazine is a commonly used color all over the world, mainly for yellow, but can also be used with Brilliant Blue FCF

Brilliant Blue FCF

Brilliant Blue FCF , also known under commercial names, is a colorant for foods and other substances to induce a color change. It is denoted by E number E133 and has a color index of 42090. It has the appearance of a reddish-blue powder...

 (FD&C Blue 1, E133) or Green S

Green S

Green S is a green synthetic coal tar triarylmethane dye with the molecular formula C27H25N2O7S2Na.As a food dye, it has E number E142. It can be used in mint sauce, desserts, gravy granules, sweets, ice creams, and tinned peas. Green S is prohibited as a food additive in Canada, United States,...

 (E142) to produce various green shades.
Many foods contain tartrazine in varying proportions, depending on the manufacturer or the cook in charge, although nowadays the trend is to avoid it or substitute a non-synthetic dyeing substance such as annatto

Annatto

Annatto, sometimes called roucou or achiote, is a derivative of the achiote trees of tropical regions of the Americas, used to produce a yellow to orange food coloring and also as a flavoring...

, malt

Malt

Malt is germinated cereal grains that have been dried in a process known as "malting". The grains are made to germinate by soaking in water, and are then halted from germinating further by drying with hot air...

 color, or betacarotene  (see Sensitivities & Intolerance, below).

Products including tartrazine commonly include confectionery

Confectionery

Confectionery is the set of food items that are rich in sugar, any one or type of which is called a confection. Modern usage may include substances rich in artificial sweeteners as well...

, cotton candy

Cotton candy

Cotton candy , candy floss or candyfloss or candy buttox , or fairy floss is a form of spun sugar. Since cotton candy is mostly air, a small initial quantity of sugar generates a tremendously greater final volume, causing servings to be physically large and voluminous...

, soft drinks (Mountain Dew

Mountain Dew

Mountain Dew is a citrus-flavored carbonated soft drink brand produced and owned by PepsiCo. The original formula was invented in the 1940s by Tennessee beverage bottlers Barney and Ally Hartman and was first marketed in Marion, VA, Knoxville and Johnson City, Tennessee. A revised formula was...

), energy drinks, instant pudding

Pudding

Pudding most often refers to a dessert, but it can also be a savory dish.In the United States, pudding characteristically denotes a sweet milk-based dessert similar in consistency to egg-based custards, though it may also refer to other types such as bread and rice pudding.In the United Kingdom and...

s, flavored corn chips (Doritos

Doritos

Doritos is a brand of seasoned tortilla chips created by Arch West and produced since 1964 by the American food company Frito-Lay ....

, nachos

Nachos

Nachos are a popular food based on nixtamalized corn, of Mexican origin associated with Tex-Mex cuisine that can be either made quickly to serve as a snack or prepared with more ingredients to make a full meal. In their simplest form, nachos are tortilla chips or totopos covered in melted cheese...

, etc.), cereals (corn flakes

Corn flakes

Corn flakes are a popular breakfast cereal originally manufactured by Kellogg's through the treatment of maize. A patent for the product was filed on May 31, 1895, and issued on April 14, 1896.-History:...

, muesli

Muesli

Muesli is a popular breakfast cereal based on uncooked rolled oats, fruit and nuts. It was developed around 1900 by Swiss physician Maximilian Bircher-Benner for patients in his hospital...

, etc.), cake

Cake

Cake is a form of bread or bread-like food. In its modern forms, it is typically a sweet and enriched baked dessert. In its oldest forms, cakes were normally fried breads or cheesecakes, and normally had a disk shape...

 mixes, pastries

Pastry

Pastry is the name given to various kinds of baked products made from ingredients such as flour, sugar, milk, butter, shortening, baking powder and/or eggs. Small cakes, tarts and other sweet baked products are called "pastries."...

, custard

Custard

Custard is a variety of culinary preparations based on a cooked mixture of milk or cream and egg yolk. Depending on how much egg or thickener is used, custard may vary in consistency from a thin pouring sauce , to a thick pastry cream used to fill éclairs. The most common custards are used as...

 powder, yellow popcorn, soup

Soup

Soup is a generally warm food that is made by combining ingredients such as meat and vegetables with stock, juice, water, or another liquid. Hot soups are additionally characterized by boiling solid ingredients in liquids in a pot until the flavors are extracted, forming a broth.Traditionally,...

s (particularly instant or "cube" soups

Bouillon cube

A bouillon cube [ˈbuːjɒn kjuːb] or stock cube is dehydrated bouillon or stock formed into a small cube about 15 mm wide. It is made by dehydrating vegetables, meat stock, a small portion of fat, salt and seasonings and shaping them into a small cube...

), sauces, some rice

Rice

Rice is the seed of the monocot plants Oryza sativa or Oryza glaberrima . As a cereal grain, it is the most important staple food for a large part of the world's human population, especially in East Asia, Southeast Asia, South Asia, the Middle East, and the West Indies...

s (like paella

Paella

Paella is a Valencian rice dish that originated in its modern form in the mid-19th century near lake Albufera, a lagoon in Valencia, on the east coast of Spain. Many non-Spaniards view paella as Spain's national dish, but most Spaniards consider it to be a regional Valencian dish...

, risotto

Risotto

Risotto is a class of Italian dishes of rice cooked in broth to a creamy consistency. The broth may be meat-, fish-, or vegetable-based; many kinds include Parmesan cheese, butter, and onion...

, etc.), powdered drink mixes, sports drinks, ice cream

Ice cream

Ice cream is a frozen dessert usually made from dairy products, such as milk and cream, and often combined with fruits or other ingredients and flavours. Most varieties contain sugar, although some are made with other sweeteners...

, ice pop

Ice pop

An ice pop, also referred to in the United States as a popsicle, and in the United Kingdom as an ice lolly, lolly ice or ice lollipop, is a frozen, water-based dessert. It is made by freezing flavored liquid around a stick. Often, the juice is colored artificially...

s, candy

Candy

Candy, specifically sugar candy, is a confection made from a concentrated solution of sugar in water, to which flavorings and colorants are added...

, Gummy Bears Peeps marshmallow treats

Peeps

Peeps are marshmallow candies, sold in the United States and Canada, that are shaped into chicks, bunnies, and other animals. There are also different shapes used for various holidays. Peeps are used primarily to fill Easter baskets, though recent ad campaigns tout the candy as "Peeps - Always in...

, chewing gum

Chewing gum

Chewing gum is a type of gum traditionally made of chicle, a natural latex product, or synthetic rubber known as polyisobutylene. For economical and quality reasons, many modern chewing gums use rubber instead of chicle...

, marzipan

Marzipan

Marzipan is a confection consisting primarily of sugar and almond meal. Persipan is a similar, yet less expensive product, in which the almonds are replaced by apricot or peach kernels...

, jam, jelly

Fruit preserves

Fruit preserves are preparations of fruits and sugar, often canned or sealed for long-term storage. The preparation of fruit preserves today often involves adding commercial or natural pectin as a gelling agent, although sugar or honey may be used, as well. Prior to World War II, fruit preserve...

 (particularly mint jelly), gelatins, marmalade

Marmalade

Marmalade is a fruit preserve made from the juice and peel of citrus fruits, boiled with sugar and water. The benchmark citrus fruit for marmalade production in Britain is the "Seville orange" from Spain, Citrus aurantium var...

, mustard

Mustard (condiment)

Mustard is a condiment made from the seeds of a mustard plant...

, horseradish

Horseradish

Horseradish is a perennial plant of the Brassicaceae family, which also includes mustard, wasabi, broccoli, and cabbages. The plant is probably native to south eastern Europe and the Arab World , but is popular around the world today...

, yogurt, noodle

Noodle

The noodle is a type of food, made from any of a variety of doughs, formed into long thin ribbons, strips, curly-cues, waves, helices, pipes, tubes, strings, or other various shapes, sometimes folded. They are usually cooked in a mixture of boiling water and/or oil. Depending upon the type, noodles...

s such as Kraft Dinner

Kraft Dinner

Kraft Dinner, known as Kraft Macaroni and Cheese in the United States and Macaroni Cheese in the United Kingdom, is a macaroni and cheese convenience food that requires minimal preparation by the consumer. The original product, a packaged dry macaroni and cheese mix, was introduced in 1937 by the...

, pickles

Pickles

Pickles may refer to:* A pickled cucumber, the food most commonly referred to as a pickle in the U.S. and Canada* A pickled onion, the food most commonly referred to as a pickle in the UK* Other vegetables that have been pickled...

 and other pickled products such as tartar sauce and dill pickle dip, certain brands of fruit squash, fruit cordial

Squash (drink)

Squash is a non-alcoholic concentrated syrup that is usually fruit-flavoured and usually made from fruit juice, water, and sugar or a sugar substitute. Modern squashes may also contain food colouring and additional flavouring...

, potato chips, biscuits, and many convenience food

Convenience food

Convenience food, or tertiary processed food, is commercially prepared food designed for ease of consumption. Products designated as convenience foods are often prepared food stuffs that can be sold as hot, ready-to-eat dishes; as room-temperature, shelf-stable products; or as refrigerated or...

s together with glycerin, lemon

Lemon

The lemon is both a small evergreen tree native to Asia, and the tree's ellipsoidal yellow fruit. The fruit is used for culinary and non-culinary purposes throughout the world – primarily for its juice, though the pulp and rind are also used, mainly in cooking and baking...

 and honey

Honey

Honey is a sweet food made by bees using nectar from flowers. The variety produced by honey bees is the one most commonly referred to and is the type of honey collected by beekeepers and consumed by humans...

 products.
Soap

Soap

In chemistry, soap is a salt of a fatty acid.IUPAC. "" Compendium of Chemical Terminology, 2nd ed. . Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford . XML on-line corrected version: created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN...

s, cosmetics

Cosmetics

Cosmetics are substances used to enhance the appearance or odor of the human body. Cosmetics include skin-care creams, lotions, powders, perfumes, lipsticks, fingernail and toe nail polish, eye and facial makeup, towelettes, permanent waves, colored contact lenses, hair colors, hair sprays and...

, shampoo

Shampoo

Shampoo is a hair care product used for the removal of oils, dirt, skin particles, dandruff, environmental pollutants and other contaminant particles that gradually build up in hair...

s and other hair products, moisturizer

Moisturizer

Moisturizers or emollients are complex mixtures of chemical agents specially designed to make the external layers of the skin softer and more pliable, by increasing its hydration by reducing evaporation. Naturally occurring skin lipids and sterols as well as artificial or natural oils,...

s, crayons, hand sanitizer, nail polish, inks for writing instruments and stamp dyes also may use it.
Vitamins, antacids, medicinal capsules and certain prescription drugs.
Tartrazine appears to cause the most allergic and intolerance reactions of all the azo dyes, particularly among asthmatics and those with an aspirin intolerance.
Symptoms from tartrazine sensitivity can occur by either ingestion or cutaneous exposure to a substance containing tartrazine.

A variety of immunologic responses have been attributed to tartrazine ingestion, including anxiety, migraines, clinical depression, blurred vision, itching, general weakness, heatwaves, feeling of suffocation, purple skin patches, and sleep disturbance.

Certain people who are exposed to the dye experience symptoms of tartrazine sensitivity even at extremely small doses, some for periods up to 72 hours after exposure.