Orange B is a

food dye Food coloring, or color additive, is any dye, pigment, or substance that imparts color when it is added to food or drink. They come in many forms consisting of liquids, powders, gels, and pastes. Food coloring is used in both commercial food p ...

from the

azo dye Azo dyes are organic compounds bearing the functional group R−N=N−R′, in which R and R′ are usually aryl and substituted aryl groups. They are a commercially important family of azo compounds, i.e. compounds containing the C-N=N ...

group. It is approved by the

United States Food and Drug Administration The United States Food and Drug Administration (FDA or US FDA) is a federal agency of the Department of Health and Human Services. The FDA is responsible for protecting and promoting public health through the control and supervision of food s ...

(FDA) for use only in

hot dog A hot dog (uncommonly spelled hotdog) is a food consisting of a grilled or steamed sausage served in the slit of a partially sliced Hot dog bun, bun. The term hot dog can refer to the sausage itself. The sausage used is a wiener (Vienna sausag ...

and

sausage A sausage is a type of meat product usually made from ground meat—often pork, beef, or poultry—along with salt, spices and other flavourings. Other ingredients, such as grains or breadcrumbs may be included as fillers or extenders. ...

casings or surfaces, only up to 150 parts per million of the finished food weight. It is typically prepared as a disodium salt. Orange B was first listed as an approved food dye by the FDA in 1966. In 1978, the FDA proposed removing it from the list due to concerns about the presence of carcinogenic contaminants (specifically 2-naphthylamine). The only supplier in the United States, the William J. Stange Company, subsequently stopped manufacturing it but it was never removed from the list.

References

Azo dyes Food colorings Benzenesulfonates Naphthalenesulfonates Ethyl esters Pyrazolones Organic sodium salts Acid dyes {{Heterocyclic-stub