4-Acetamidobenzaldehyde
4-Acetamidobenzaldehyde
CAS: 122-85-0
Molecular Formula: C9H9NO2
4-Acetamidobenzaldehyde - Names and Identifiers
| Name | 4-Acetamidobenzaldehyde |
| Synonyms | p-Formylacetanilide 4'-Formylacetanilide 4-Formylacetoanilide P-ACETAMINOBENZALDEHYDE P-ACETAMIDOBENZALDEHYDE 4-Acetamidobenzaldehyde 4-acetoaminobenzaldehyde P-Acetamino benzaldehyde P-ACETYLAMINOBENZALDEHYDE N-(4-formylphenyl)acetamide 4-(Acetalamino)benzaldehyde N1-(4-FORMYLPHENYL)ACETAMIDE |
| CAS | 122-85-0 |
| EINECS | 204-579-2 |
| InChI | InChI=1/C9H9NO2/c1-7(12)10-9-4-2-8(6-11)3-5-9/h2-6H,1H3,(H,10,12) |
4-Acetamidobenzaldehyde - Physico-chemical Properties
| Molecular Formula | C9H9NO2 |
| Molar Mass | 163.17 |
| Density | 1.2021 (rough estimate) |
| Melting Point | 148-153 °C (lit.) |
| Boling Point | 290.25°C (rough estimate) |
| Flash Point | 181.8°C |
| Water Solubility | 3.247g/L(25 ºC) |
| Vapor Presure | 4.12E-06mmHg at 25°C |
| Appearance | Bright yellow crystal |
| Color | White to yellow |
| pKa | 14?+-.0.70(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Sensitive | Air Sensitive |
| Refractive Index | 1.5300 (estimate) |
| MDL | MFCD00003380 |
| Physical and Chemical Properties | Needle-like crystals, melting point 156 °c. The freshly prepared product was colorless and turned yellow soon after standing. Soluble in water and benzene, slightly soluble in alcohol. |
| Use | Used as a pharmaceutical Intermediate |
4-Acetamidobenzaldehyde - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R20/22 - Harmful by inhalation and if swallowed. |
| Safety Description | S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29242995 |
4-Acetamidobenzaldehyde - Upstream Downstream Industry
| Raw Materials | Acetic acid Sodium sulfide |
4-Acetamidobenzaldehyde - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | this product is used in pharmaceutical production and is also a raw material for other organic synthesis. Used as a pharmaceutical intermediate |
| Production method | It is obtained by acetylation of p-aminobenzaldehyde and acetic anhydride. Add acetic anhydride to the azeotropic dehydrated p-aminobenzaldehyde benzene solution, continue distillation to recover benzene, and steam the remaining benzene. Then add water to the reaction product, adjust the pH value to 6.8-7 with sodium carbonate, add activated carbon to decolorize at 95-100 ℃, and press filtration. The filtrate is cooled and crystallized, filtered, and dried at 60-65 ℃ to obtain p-acetaminobenzaldehyde. |
Last Update：2024-04-09 02:00:06
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Raw Materials for 4-Acetamidobenzaldehyde