p-Formylaniline
4-Aminobenzaldehyde
CAS: 556-18-3
Molecular Formula: C7H7NO
p-Formylaniline - Names and Identifiers
p-Formylaniline - Physico-chemical Properties
| Molecular Formula | C7H7NO |
| Molar Mass | 121.14 |
| Density | 0,868 g/cm |
| Melting Point | 77-79°C |
| Boling Point | 138-139 C |
| pKa | 1.88±0.10(Predicted) |
| Storage Condition | -20℃ |
| Refractive Index | 1.5323 (estimate) |
| Physical and Chemical Properties | Yellow crystalline powder. Melting point 71-72 °c. Soluble in alcohol, benzene, insoluble in water, easy to polymerization. |
| Use | For Organic synthesis |
p-Formylaniline - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R43 - May cause sensitization by skin contact R22 - Harmful if swallowed |
| Safety Description | 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. S36 - Wear suitable protective clothing. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 1307 |
| WGK Germany | 3 |
| RTECS | CU4400000 |
p-Formylaniline - Upstream Downstream Industry
| Downstream Products | Nifedipine |
p-Formylaniline - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | 4-aminobenzaldehyde is a light yellow crystal, which is used to synthesize trimethoprim (TMP), a sulfonamide antibacterial synergist; the perfume industry is used as an intermediate of anisaldehyde and vanillin; The pesticide industry is used as a raw material of p-chlorobenzaldehyde, and can also be used as the manufacture of photoresistor and the synthesis of mechanical metal protective film. |
| uses | pharmaceutical and dye intermediates. for organic synthesis |
| production method | p-nitrotoluene is obtained by oxidation and reduction, sodium sulfide and sodium hydroxide are dissolved in water, filtered, the filtrate was heated to 68 °c and sulfur powder was added and the reaction was carried out at 98 °c for 18min. 65% ethanol and p-nitrotoluene were added, and the reaction was carried out at 80-86 ° C. For 1.5h. The ethanol was recovered, and the by-product P-aminotoluene was removed by steam distillation. The reaction solution was extracted with benzene, distilled by water vapor, cooled, filtered and dried to obtain the final product. |
| category | toxic substances |
| toxicity grade | poisoning |
| Acute toxicity | intraperitoneal-rat LD50: 912 mg/kg |
| flammability hazard characteristics | flammability; Toxic nitrogen oxide and sulfur oxide fumes from combustion |
| storage and transportation characteristics | warehouse ventilation and low temperature drying |
| extinguishing agent | dry powder, foam, sand, carbon dioxide, water mist |
Last Update：2024-04-09 20:52:54
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Downstream Products for p-Formylaniline