3457-98-5
4-Aminoazobenzene HCl
CAS: 3457-98-5
Molecular Formula: C12H12ClN3
3457-98-5 - Names and Identifiers
| Name | 4-Aminoazobenzene HCl |
| Synonyms | 4-Aminoazobenzene HCl 4-Aminobenzene hydrochloride 4-[(E)-phenyldiazenyl]anilinium chloride C.I. Solvent Yellow 1, monohydrochloride (8CI) Benzenamine, 4-(2-phenyldiazenyl)-, hydrochloride |
| CAS | 3457-98-5 |
| EINECS | 222-390-3 |
| InChI | InChI=1/C12H11N3.ClH/c13-10-6-8-12(9-7-10)15-14-11-4-2-1-3-5-11;/h1-9H,13H2;1H/b15-14+ |
3457-98-5 - Physico-chemical Properties
| Molecular Formula | C12H12ClN3 |
| Molar Mass | 233.70 |
| Melting Point | 213 °C |
| Boling Point | 360.7°C at 760 mmHg |
| Flash Point | 171.9°C |
| Vapor Presure | 2.19E-05mmHg at 25°C |
| Storage Condition | Room Temprature |
| MDL | MFCD00012994 |
| Physical and Chemical Properties | Properties steel cyan needle-like crystals. melting point 227~228 ℃ solubility slightly soluble in water, soluble in hydrochloric acid and ethanol. |
| Use | Used as an intermediate of azo dyes for the production of direct sun-resistant orange GGL, acid red GK, disperse Yellow RG and FL, disperse orange GG and other dyes |
3457-98-5 - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R45 - May cause cancer R46 - May cause heritable genetic damage R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| RTECS | BY8235000 |
| HS Code | 29215900 |
3457-98-5 - Upstream Downstream Industry
| Raw Materials | Diazoaminobenzene |
| Downstream Products | Acid Red 73 |
3457-98-5 - Nature
Open Data Verified Data
steel cyan needle-like crystals. Slightly soluble in water, soluble in hydrochloric acid and ethanol. Co-heating with dilute ammonium hydroxide resulted in the precipitation of brown crystals of p-aminoazobenzene. The melting point was 227-228 °c.
Last Update：2024-01-02 23:10:35
3457-98-5 - Safety
Open Data Verified Data
-
Highly toxic. The toxicity was similar to that of aniline. Production equipment and pipelines should be closed. Avoid contact with the skin, splash and skin, 'should be promptly washed with water and ethanol. Poisoning occurs, can be injected dextromethorphan detoxication.
- the container is packed with a wooden barrel or a hemp bag lined with a plastic bag, and the net weight of each barrel (bag) is 25kg or 50kg. Stored in a cool, dry place, not with organic solvents, bases, food storage or mixed transport. Prevent sun and rain during storage and transportation.
Last Update：2022-01-01 10:52:51
3457-98-5 - Nature
| EPA chemical information | Benzenamine, 4-(phenylazo)-, monohydrochloride (3457-98-5) |
Last Update：2024-04-09 20:45:29
3457-98-5 - Uses and synthesis methods
use
dye intermediates, used to make acidic red GR, dispersed yellow RGFL, dispersed yellow 3R WV, dispersed orange GG, etc.
production method
The diazotization reaction of aniline and sodium nitrite in hydrochloric acid medium is carried out to obtain aniline diazonium salt, which is then added with another molecule of aniline to generate diazoaminobenzene, and then in the presence of a small amount of aniline hydrochloride, At 50-55 ℃, molecular rearrangement is carried out, acidified with hydrochloric acid to obtain the crystallization of p-aminoazobenzene hydrochloride.
Last Update：2024-04-09 21:00:56
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