Agent Name

Sudan II

Alternative Name

C.I. Solvent Orange 7

CAS Number




Major Category



C.I. Solvent Orange 7; 1-((2,4-Dimethylphenyl)azo)-2-naphthalenol; 1-(2,4-Xylylazo)-2-naphthol; 1-(o-Xylylazo)-2-naphthol; 1-Xylylazo-2-naphthol; 2-Naphthalenol, 1-((2,4-dimethylphenyl)azo)-; 2-Naphthol, 1-(2,4-xylylazo)-; A F Red No. 5; A.F. Red No. 5; Aizen Food Red No. 5; Brasilazina Oil Scarlet 6G; Brilliant Oil Scarlet B; C.I. 12140; CI 12140; Calco Oil Scarlet BL; Ceres Orange RR; Cerisol Scarlet G; Cerotinscharlach G; Color Index No: 12140; Ext D & C Red No. 14; Ext D and C Red. No. 14; Extract D and C Red No. 14; FD & C No. 32; FD and C Red No. 32; Fast Oil Orange II; Fat Red (Yellowish) (VAN); Fat Red (yellowish); Fat Scarlet 2G; Fettorange B; Grasan Orange 3R; Japan Red 5; Japan Red 505; Lacquer Orange VR; Motirot G; Oil Orange 2R; Oil Orange KB; Oil Orange N Extra; Oil Orange R; Oil Orange R (VAN); Oil Orange X; Oil Orange XO; Oil Red GRO; Oil Red RO; Oil Red XO; Oil Scarlet; Oil Scarlet (VAN); Oil Scarlet 371; Oil Scarlet 6G; Oil Scarlet APYO; Oil Scarlet BL; Oil Scarlet L; Oil Scarlet Y; Oil Scarlet YS; Orange Insoluble RR; Orange Oil KB; Oranz rozpoustedlova 7 [Czech]; Ponceau Insoluble OLG; Pyronalrot R; Red B; Red No. 5; Resin Scarlet 2R; Resoform Orange R; Rot B; Rot GG Fettloeslich; Solvent Orange 7; Somalia Orange 2R; Somalia Orange A2R; Sudan Orange; Sudan Orange RPA; Sudan Orange RRA; Sudan Red; Sudan Scarlet 6G; Sudan X; Sudan AX; Sudan Scarlet 6G; Waxakol Vermilion; Waxakol Vermilion L; [ChemIDplus]


Azo Dyes


Brownish-red to red solid; [HSDB] Orange powder; [MSDSonline]


Used for coloring oils, waxes, polishes, candles, polystyrene resins, petroleum products, plastics, shoe polish, cosmetics, and drugs applied externally; [HSDB]


An irritant; Causes tumors in chronic animal experiments; [MSDSonline]

Exposure Assessment
Vapor Pressure

1.17E-8 mm Hg

Adverse Effects
IARC Carcinogen

Not Classifiable

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information


Chemical Information

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Other Information

No other related information on this agent was found.