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 |