Solvent Yellow 2
- Product Name:
- Solvent Yellow 2
- 4-Dimethylaminoazobenzene,CI 11020
- 4-Dimethylaminoazobenzene,CI 11020 ph.eur
- Butter OR Methyl Yellow
- Product Categories:
- Analytical Chemistry
- Indicator (pH)
- pH Indicators
- Solvent Dyestuff
- Mol File:
Solvent Yellow 2 Chemical Properties
- Melting point:
- 111 °C (dec.)(lit.)
- Boiling point:
- 356.8°C (rough estimate)
- 1.1303 (rough estimate)
- vapor pressure
- 3 x 10-7 mmHg (estimated, NIOSH, 1997)
- refractive index
- 1.5770 (estimate)
- storage temp.
- Store at RT.
- Solubility Insoluble in water; soluble in ethanol, benzene, ether, chloroform,petroleum ether, mineralacids, oils
- 3.226(at 25℃)
- Colour Index
- PH Range
- Water Solubility
- 13.6 mg/L
- 408nm, 256nm, 508nm
- Stable, but heat and light sensitive. Incompatible with strong oxidizing agents, strong acids.
- Major Application
- Electrochromic materials, sol-gel coatings, display device, inks, gasdetection apparatus, status assessment indetection apparatus, nematocides, hair dyes, diapers, food storage, status assessment inbreast cancer, detecting carbohydrates, bacteria, diagnosing cervical disease, wound dressing materials
- CAS DataBase Reference
- 60-11-7(CAS DataBase Reference)
- 2B (Vol. 8, Sup 7) 1987
- NIST Chemistry Reference
- Benzenamine, N,N-dimethyl-4-(phenylazo)-(60-11-7)
- EPA Substance Registry System
- 4-Dimethylaminoazobenzene (60-11-7)
- Hazard Codes
- Risk Statements
- Safety Statements
- UN 2811 6.1/PG 3
- WGK Germany
- HS Code
- Hazardous Substances Data
- 60-11-7(Hazardous Substances Data)
- Acute oral LD50 for mice 300 mg/kg, rats 200 mg/kg (quoted, RTECS, 1985).
Solvent Yellow 2 Usage And Synthesis
4-N,N-Dimethylaminobenzene diazonium chloride is a diazo compound found in diazo copy paper. It is allergenic only when unexposed.
yellow to orange crystalline powder
For determination of free HCl in gastric juice; spot test identification of peroxidized fats; pH indicator (red 2.9, yellow 4.0).
Formerly used as a coloring agent in foods, drugs, and cosmetics
A banned food coloring.
4-Dimethylaminoazobenzene was produced in large quantities in the early 1900s but is currently not produced in any significant commercial quantity in the United States.
Yellow crystalline leaflets or an orange powder.
Air & Water Reactions
Dust may form an explosive mixture in air. Insoluble in water.
Solvent Yellow 2 can detonate, particularly if sensitized by the presence of metal salts or strong acids. May form toxic gases 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. May form flammable gases with alkali metals. May react explosively with strong oxidizing agents, metal salts, peroxides, and sulfides. May react explosively with strong oxidizing agents, metal salts, peroxides, and sulfides.
4-Dimethylamino-azobenzene (XIII) is the parent compound of the amino-azo dye carcinogens; it is also known in the earlier literature as Butter Yellow, because it was used to color butter and vegetable oils before its carcinogenic activity was discovered. Many derivatives of XIII have been prepared and tested for carcinogenic activity. In the rat, the amino-azo dye carcinogens, administered in the diet, specifically induce hepatomas. Tumor induction by most of the amino-azo dyes is delayed or inhibited by high dietary levels of riboflavin (vitamin B2) or protein. Replacement of the –N=N– azo linkage by –CH=CH–, as in 4-dimethylaminostilbene (XIV), results in widening the target tissue spectrum; XIV induces tumors in the liver, mammary gland, and ear duct. Mice are much more resistant than rats to the carcinogenic activity of both amino-azo dyes and aminostilbenes.
Flash point data for Solvent Yellow 2 are not available. Solvent Yellow 2 is probably combustible.
Confirmed carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Poison by ingestion and intraperitoneal routes. Experimental teratogenic and reproductive effects. Human mutation data reported. When heated to decomposition it emits toxic fumes of NOx
4-Dimethylaminoazobenzene is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity fromstudies in experimental animals.
Chemical/Physical. Releases toxic nitrogen oxides when heated to decomposition (Sax and
At influent concentrations of 1.0, 0.1, 0.01, and 0.001 mg/L, the GAC adsorption capacities were 249, 140, 83, and 48 mg/g, respectively (Dobbs and Cohen, 1980).
Crystallise the dye from acetic acid or isooctane, or from 95% EtOH by adding hot water and cooling. Dry it over KOH under vacuum at 50o. [Beilstein 6 IV 448.] CARCINOGEN.
Solvent Yellow 2 Preparation Products And Raw materials
- 010-82848833- ;010-82848833-
- 400-610-6006; 021-67582000
- 021-67121386 / 800-988-0390
- Dimethyl fumarate
- Dimethyl sulfoxide
- Solvent Yellow 33
- Dimethyl sulfate
- 4-Hydroxyazobenzene, Solvent Yellow 7
- Solvent Yellow 2