| Identification | More | [Name]
O-AMINOAZOTOLUENE | [CAS]
97-56-3 | [Synonyms]
2-AMINO-5-AZOTOLUENE
2-AMINOAZOTOLUENE
2-METHYL-4-((2-METHYLPHENYL)DIAZENYL)ANILINE
4'-AMINO-2,3'-DIMETHYLAZOBENZENE
4-AMINO-2',3-DIMETHYLAZOBENZENE
4-(O-TOLYLAZO)-O-TOLUIDINE
AKOS 215-57
AMINOAZOTOLUENE
AZO-O-TOLUIDINE
CI 11160
CI NO 11160
CI SOLVENT YELLOW 3
FAST GARNET GBC BASE
Fast oil yellow
GARNET GBC BASE
LABOTEST-BB LT00080714
O-AMINOAZOTOLUENE
OIL YELLOW 21
OIL YELLOW 2681
O-TOLUENE-AZO-O-TOLUIDINE | [EINECS(EC#)]
202-591-2 | [Molecular Formula]
C14H15N3 | [MDL Number]
MFCD00007733 | [Molecular Weight]
225.29 | [MOL File]
97-56-3.mol |
| Chemical Properties | Back Directory | [Appearance]
Aminoazotoluene forms golden yellow or reddish-brown crystalline solid. | [Melting point ]
101-102 °C | [Boiling point ]
356.8°C (rough estimate) | [density ]
1.1303 (rough estimate) | [refractive index ]
1.5770 (estimate) | [storage temp. ]
2-8°C
| [solubility ]
DMSO (Slightly), Methanol (Slightly) | [Colour Index ]
11160 | [form ]
Powder | [pka]
3.01±0.10(Predicted) | [color ]
Red-brown | [PH]
pH : 1.4～2.8 | [Water Solubility ]
7mg/L(37 ºC) | [Merck ]
420 | [BRN ]
6506005 | [Stability:]
Light Sensitive | [CAS DataBase Reference]
97-56-3(CAS DataBase Reference) | [IARC]
2B (Vol. 8, Sup 7) 1987 | [NIST Chemistry Reference]
Benzenamine, 2-methyl-4-[(2-methylphenyl)azo]-(97-56-3) | [EPA Substance Registry System]
97-56-3(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T | [Risk Statements ]
R45:May cause cancer.
R22:Harmful if swallowed.
R43:May cause sensitization by skin contact. | [Safety Statements ]
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN 1789 8/PG 2
| [WGK Germany ]
3
| [RTECS ]
XU8800000 | [TSCA ]
Yes | [HS Code ]
29270000 | [Safety Profile]
Confirmed carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Poison by ingestion. Moderately toxic by subcutaneous route. An experimental teratogen. Human mutation data reported. When heated to decomposition it emits toxic fumes of NO,. See also AROMATIC AMINES. | [Hazardous Substances Data]
97-56-3(Hazardous Substances Data) | [Toxicity]
LD50 oral in dog: 300mg/kg |
| Hazard Information | Back Directory | [General Description]
Reddish-brown to golden crystals; orangish red powder. Odorless. | [Reactivity Profile]
O-AMINOAZOTOLUENE(97-56-3) is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class 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. This chemical is sensitive to prolonged exposure to heat. This chemical is incompatible with strong oxidizing agents. | [Air & Water Reactions]
Dust may form an explosive mixture in air. Insoluble in water. | [Hazard]
Possible carcinogen.
| [Potential Exposure]
An azo compound used in dyes, medicines; as a colorant in shoe polishes and other wax-based polishes. | [Fire Hazard]
Flash point data for this chemical are not available. O-AMINOAZOTOLUENE is probably combustible. | [First aid]
Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove andisolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.
| [Shipping]
UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. | [Incompatibilities]
Dust may form explosive mixture in air. Azo compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class 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. This chemical is sensitive to prolonged exposure to heat. This chemical is incompatible with strong oxidizing agents. | [Chemical Properties]
Aminoazotoluene forms golden yellow or reddish-brown crystalline solid. | [Chemical Properties]
red-brown crystalline powder | [Uses]
C.I. 11160 | [Uses]
Coloring oils, fats and waxes; manufacture of pigments. Chemical intermediate for the production of dyes. | [Definition]
ChEBI: Ortho-Aminoazotoluene is a member of azobenzenes. | [Preparation]
(a) will Sodium nitrite (1 Moore) to join O-Methylaniline (8.5 Moore) and hydrochloric acid (1 Moore), the temperature is maintained at 28 ℃ below, until diazotization finish. Add a small amount of hydrochloric acid (about 0.2 Moore), and heating (40 ℃, 3 hours), in order to separate, with Sodium hydroxide for mercerization, and distillation reservoir. In order to get the refined products, usable alcohol recrystallization; (b) O-Methylaniline?diazotization, and O-Methylaniline?base Methanesulfonic acid coupling, and then with Sodium hydroxide solution common boiling, hydrolysis off Methanesulfonic acid base. | [Carcinogenicity]
o-Aminoazotoluene is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals. | [Properties and Applications]
yellow. In the ethanol for yellow sheet crystallization, melting point 100 ℃. Soluble in Acetone, ethanol, Cellosolve and Toluene, insoluble in water. In concentrated sulfuric acid for brown, dilution after red orange solution, and precipitation; In concentrated nitric acid for red brown solution; In concentrated hydrochloric acid partly dissolved for brown; In 10% of the sulfuric acid insoluble; In 10% Sodium hydroxide solution slightly soluble, pale yellow. Dye alcohol solution to join hydrochloric acid red hydrochloride crystal, heating the solution. Used for paraffin color.
|
Standard
|
Light Fastness
|
Heat-resistant(℃)
|
Water
|
Sodium Carbonate(5%)
|
Hydrochloric acid(5%)
|
|
Melting point
|
Stable
|
|
ISO
|
General
|
100
|
150Sublimation
|
Indissolvable
|
Indissolvable
|
Poor
|
| [Purification Methods]
Recrystallise the dye twice from EtOH, once from *benzene, then dry it in an Abderhalden drying apparatus. [Cilento J Am Chem Soc 74 968 1952, Sawicki J Org Chem 21 605 1956, Beilstein 16 H 334, 16 I 322, 16 II 178, 16 III 386, 16 IV 525.] CARCINOGENIC. |
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