Sudan Red

276.33

276.33

221-490-4

8C1M5O3ECT

10457

DTXSID5040706

Red needles|Brown-red crystals; red needles

2927000090

41.5

4.56

Red to orange-brownish Powder

1.1±0.1 g/cm3

166 °C

429.6±55.0 °C at 760 mmHg

213.6±31.5 °C

1.616

soluble in ether

Flammable, decomposes toxic nitrogen oxide gas when burning

Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.

Azo, Diazo, Azido, Hydrazine, and Azide Compounds

Explosive

C.I. SOLVENT ORANGE 7 is an azo compound. Toxic gases are formed by mixing azo compounds with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.

NONH for all modes of transport

3

36/37/38

26-37/39-24/25

QL5850000

Xi

Warehouse low temperature, ventilated, dry

P261, P272, P273, P280, P302+P352, P321, P333+P313, P363, P391, P501

H317

|Warning|H315 (98.55%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 74 companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H317 (100%): May cause an allergic skin reaction [Warning Sensitization, Skin]|P261, P272, P273, P280, P302+P352, P321, P333+P313, P363, P391, and P501|Aggregated GHS information provided by 38 companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Sudan II is not known to occur in nature.

Beauticians exposed to paraphenylenediamine derivatives in hair dyes, workers dyeing texitle resins, and photographic film developers exposed to color developing solutions not infrequently become sensitized to azo dyes. /Organic dyes/

Eight patients suffering from pigmented contact dermatitis caused by commercial Brilliant Lake Red R were patch tested with purified Sudan I and its several chemical analogs. Positive reactions were observed to ... Sudan II. Negative patch tests were obtained with ... Sudan III.|Most organic azo dyes are potential skin sensitizers, the most important of which are paraphenylenediamine and its analogs. Water soluble azo dyes are more likely to cause clinical sensitization than insoluble dyes. ... In addition to allergic eczematous contact dermatitis, color developing solutions have caused lichen planus like eruptions. /Organic dyes/

Sudan II

2-Naphthalenol, 1-[2-(2,4-dimethylphenyl)diazenyl]-: ACTIVE|Large-scale production of Sudan II in the USA was first reported in 1921. In 1971, three manufacturers reported production of 34,500 kg; in 1972, it was also produced by three manufacturers, but separate production data were not published, and it was included in a miscellaneous category containing at least 11 other colors, with a total production of 236,000 kg.|The Deutsche Forschungsgemeinschaft, 1955, reported that Sudan II was approved for use as a general food coloring in Canada, Greece, Japan, Mexico, Norway and Peru. A later edition, 1957, reported approval in Cuba, the Dominican Republic and Guatemala, but indicated that approval had been withdrawn in Canada and Norway. Approval for its use in food in Japan was withdrawn prior to 1966, although it was retained for certain non food uses. Sudan II was added to the USA approved list of food, drug and cosmetic colors in 1939, but in 1956, on the basis of toxicological data, it was removed from this list for use in food but permitted in externally applied drugs and cosmetics. In 1963, it was removed for even these uses.|Delisted for use in foods, drugs and cosmetics by the FDA.