Name | p-Aminoazobenzene |
Synonyms | C.I. 11000 Aniline Yellow Oil Yellow AAB Phenylazoaniline Solvent Yellow 1 p-Aminoazobenzene 4-Aminoazobenzene 4-phenylazoaniline 4-Benzeneazoaniline Azobenzene, 4-amino- C.I. Solvent Yellow 1 (1E)-1-phenyltriaz-1-ene 4-(phenyldiazenyl)aniline C.I. Solvent Yellow 1 (8CI) 4-[(E)-phenyldiazenyl]aniline 4-[(Z)-phenyldiazenyl]aniline |
CAS | 60-09-3 |
EINECS | 200-453-6 |
InChI | InChI=1/C12H11N3/c13-10-6-8-12(9-7-10)15-14-11-4-2-1-3-5-11/h1-9H,13H2 |
Molecular Formula | C12H11N3 |
Molar Mass | 197.24 |
Density | 1.127g/cm3 |
Melting Point | 123-126 °C(lit.) |
Boling Point | 360.658°C at 760 mmHg |
Flash Point | 171.92°C |
Water Solubility | 29.59mg/L(25 ºC) |
Solubility | Slightly soluble in hot water, soluble in hot alcohol, ether, benzene, chloroform. |
Vapor Presure | 0mmHg at 25°C |
Appearance | Form neat, color yellow crystals or orange needles with blue case from EtOH |
pKa | 2.82(at 25℃) |
Storage Condition | 2-8 ℃, dark |
Stability | Stable. Incompatible with strong oxidizing agents. |
Sensitive | Sensitive to light |
Refractive Index | 1.611 |
MDL | MFCD00007854 |
Physical and Chemical Properties | Chemical yellow to light brown, slightly gray or light blue crystal or powder. Melting point 126 ℃, boiling point> 360 ℃, slightly soluble in water, soluble in ethanol, ether, chloroform, benzene and oils. |
Use | For the system of azo dyes and oxazine dyes, and used as alcohol soluble yellow and pH indicator |
Risk Codes | R45 - May cause cancer R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R46 - May cause heritable genetic damage |
Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S22 - Do not breathe dust. |
UN IDs | UN 3077 9/PG 3 |
WGK Germany | 3 |
RTECS | BY8225000 |
HS Code | 29270000 |
Hazard Class | IRRITANT |
Packing Group | III |
Toxicity | LD50 intraperitoneal in mouse: 200mg/kg |
color index | 11000 |
Merck | 14,419 |
BRN | 1913042 |
(IARC) Carcinogen Classification | 2B (Vol. 8, Sup 7) 1987 |
NIST chemical information | Benzenamine, 4-(phenylazo)-(60-09-3) |
EPA chemical information | 4-Aminoazobenzene (60-09-3) |
use
1. dye intermediates. Used to synthesize azo dyes, disperse dyes, oxazine dyes; also used to make paints and pigments, as well as alcohol-soluble yellow and pH indicators.
2. Used to produce azo dyes and oxazine dyes, etc., and used as alcohol-soluble yellow and pH indicator
3, acid-base indicator and nitrite test. Organic synthesis.
production method
Starting from aniline, it is obtained by condensation with aniline after diazotization and translocation rearrangement. Put aniline and sodium nitrite solution into the reaction pot, stir at 30-40 ℃, add 30% hydrochloric acid within 2.5-3h, and then raise the temperature to 50-55 ℃ for indexing.
toxic substance data | 60-09-3(Hazardous Substances Data) |