SUDAN II
Synonym(s):1-(2,4-Xylylazo)-2-naphthol;Solvent Orange 7
- CAS NO.:3118-97-6
- Empirical Formula: C18H16N2O
- Molecular Weight: 276.33
- MDL number: MFCD00003896
- EINECS: 221-490-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-11-08 21:13:59
What is SUDAN II?
Chemical properties
Red to orange-brownish powder
The Uses of SUDAN II
Sudan II is a fat soluble red synthetic azo dye. Sudan II is reduced to potentially carcinogenic aromatic amines by human intestinal bacteria. Dyes and metabolites, Environmental Testing.
What are the applications of Application
Sudan II is a lipid soluble, diazo dye useful for staining triglycerides in animal tissues (frozen sections)
Preparation
mixed N,N-dimethylaniline diazotization, and Naphthalen-2-ol coupling.
Definition
ChEBI: Sudan II is a member of azobenzenes.
General Description
Red crystals. Insoluble in water.
Air & Water Reactions
Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.
Reactivity Profile
SUDAN II 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.
Flammability and Explosibility
Not classified
Safety Profile
Questionable carcinogen with experimental carcinogenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
Properties and Applications
red orange. Melting point 166 ℃ (from the glacial acetic acid crystallization out). Soluble in ethanol, acetone and benzene as the red orange. In concentrated sulfuric acid for cherry red, dilution still for cherry red, and then into the orange and red brown with precipitation; In concentrated nitric acid for brilliant orange solution, and then gradually become dark; In 10% of sodium hydroxide solution insoluble, for yellow sanguine. Dye alcohol solution to join concentrated hydrochloric acid for orange solution; Add sodium hydroxide to become red.
Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
Melting point | Stable | |||||
ISO | Good | 166 | 100 | Insoluble | Well | Well |
Properties of SUDAN II
Melting point: | 156-158 °C(lit.) |
Boiling point: | 419.24°C (rough estimate) |
Density | 1.1318 (rough estimate) |
vapor pressure | 0Pa at 25℃ |
refractive index | 1.5800 (estimate) |
storage temp. | Hygroscopic, Refrigerator, Under inert atmosphere |
solubility | Chloroform (Slightly), DMSO (Slightly, Heated, Sonicated), Ethyl Acetate (Slight |
form | Powder |
Colour Index | 12140 |
pka | 13.52±0.50(Predicted) |
color | Red to orange-brownish |
Water Solubility | 54.45μg/L at 25℃ |
Stability: | Hygroscopic |
CAS DataBase Reference | 3118-97-6 |
IARC | 3 (Vol. 8, Sup 7) 1987 |
EPA Substance Registry System | C.I. Solvent Orange 7 (3118-97-6) |
Safety information for SUDAN II
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 Health Hazard GHS08 |
GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H351:Carcinogenicity |
Precautionary Statement Codes |
P201:Obtain special instructions before use. P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for SUDAN II
Abamectin manufacturer
Parshwanath Group of Indusries
Colorants Chem Pvt Ltd
Jagson Colorchem Limited
Alliance Organic LLP
Vikram And Company
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