Sudan Red G is a yellowish red
lysochrome A lysochrome is a soluble dye used for histochemical staining of lipids, which include triglycerides, fatty acids, and lipoprotein
A lipoprotein is a biochemical assembly whose primary function is to transport hydrophobic lipid (also known as ...
azo dye. It has the appearance of an odorless reddish-orange powder with melting point 225 °C. It is soluble in fats and used for coloring of fats, oils, and waxes, including the waxes used in
turpentine
Turpentine (which is also called spirit of turpentine, oil of turpentine, terebenthene, terebinthine and (colloquially) turps) is a fluid obtained by the distillation of resin harvested from living trees, mainly pines. Mainly used as a spec ...
-based
polish
Polish may refer to:
* Anything from or related to Poland, a country in Europe
* Polish language
* Poles
Poles,, ; singular masculine: ''Polak'', singular feminine: ''Polka'' or Polish people, are a West Slavic nation and ethnic group, w ...
es. It is also used in
polystyrene,
cellulose
Cellulose is an organic compound with the formula , a polysaccharide consisting of a linear chain of several hundred to many thousands of β(1→4) linked D-glucose units. Cellulose is an important structural component of the primary cell w ...
, and synthetic
lacquers. It is insoluble in water. It is stable to temperatures of about 100–110 °C. It was formerly used as 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 ...
, but still appears to be used for this purpose in china. It is used in some
temporary tattoo
A tattoo is a form of body modification made by inserting tattoo ink, dyes, and/or pigments, either indelible or temporary, into the dermis layer of the skin to form a design. Tattoo artists create these designs using several tattooing pr ...
s, where it can cause
contact dermatitis
Contact dermatitis is a type of acute or chronic inflammation of the skin caused by exposure to chemical or physical agents. Symptoms of contact dermatitis can include itchy or dry skin, a red rash, bumps, blisters, or swelling. These rashes are ...
. It is also used in
hair dye
Hair coloring, or hair dyeing, is the practice of changing the hair color. The main reasons for this are cosmetic: to cover gray or white hair, to change to a color regarded as more fashionable or desirable, or to restore the original hair color ...
s. It is a component of some newer formulas for red
smoke signals and
smoke-screen
A smoke screen is smoke released to mask the movement or location of military units such as infantry, tanks, aircraft, or ships.
Smoke screens are commonly deployed either by a canister (such as a grenade) or generated by a vehicle (such ...
s, together with
Disperse Red 11
Disperse Red 11, or 1,4-diamino-2-methoxyanthraquinone, is a red disperse dye derived from anthraquinone. It is water insoluble.
Disperse Red 11 can be used in plastics and textiles industry to dye polyvinylchloride, polyester, polyamide, and ...
.
Other Names
There are various names for Sudan Red G, including Brilliant Fat Scarlet R, C.I. Food Red 16, C.I. Solvent Red I, C.I. 12150, Ceres Red G, Fat Red BG, Fat Red G. Lacquer Red V2G, Oil Pink, Oil Scarlet 389, Oil Vermilion, Oil Red G, Oleal Red G, Plastoresin Red FR, Red GD, Resinol Red G, Silotras Red TG, Solvent Red 1, Sudan R, and amethoxybenzenazo-β-naphthol (MBN).
Toxicity & Safety Issues
According to
European Food Safety Authority
The European Food Safety Authority (EFSA) is the agency of the European Union (EU) that provides independent scientific advice and communicates on existing and emerging risks associated with the food chain. EFSA was established in February 2002, ...
, Sudan Red G is considered genotoxic and/or carcinogenic.
EFSA ::. Opinion of the Scientific Panel on food additives, flavourings, processing aids and materials in contact with food (AFC) to review the toxicology of a number of dyes illegally present in food in the EU
/ref>
References
{{reflist
Azo dyes
Food colorings
Sudan dyes
2-Naphthols
Phenol ethers