Cinnamaldehyde, p-nitro-
4-Nitrocinnamaldehyde
CAS: 1734-79-8
Molecular Formula: C9H7NO3
Cinnamaldehyde, p-nitro- - Names and Identifiers
Cinnamaldehyde, p-nitro- - Physico-chemical Properties
| Molecular Formula | C9H7NO3 |
| Molar Mass | 177.16 |
| Density | 1.3312 (rough estimate) |
| Melting Point | 140-143°C(lit.) |
| Boling Point | 309.06°C (rough estimate) |
| Flash Point | 151.6°C |
| Water Solubility | Insoluble in water. |
| Vapor Presure | 0.000557mmHg at 25°C |
| Appearance | Beige to yellow-brown crystal or crystalline powder |
| BRN | 1565424 |
| Storage Condition | Inert atmosphere,Store in freezer, under -20°C |
| Sensitive | Air Sensitive |
| Refractive Index | 1.5200 (estimate) |
| MDL | MFCD00007379 |
Cinnamaldehyde, p-nitro- - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/38 - Irritating to eyes and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| RTECS | GD6650000 |
| TSCA | Yes |
| HS Code | 29130000 |
Cinnamaldehyde, p-nitro- - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | 4-nitrocinnamaldehyde can be used as an intermediate in organic synthesis and pharmaceutical, mainly used in laboratory research and development and chemical production. |
| preparation | 5.0g(66mmol) p-nitrobenzaldehyde and 10.0mL acetaldehyde are added into a three-neck bottle, 10mL potassium hydroxide-methanol solution with a mass fraction of 30% is added into a dropping funnel, magnetic stirring is carried out, and the reaction bottle is cooled in an ice salt bath. when the temperature drops to 0-5 ℃, under magnetic stirring, slowly add 5mL of potassium hydroxide-methanol solution dropwise, add 5mL of potassium hydroxide-a alcohol solution dropwise after 40min of reaction, continue the reaction at about 10 ℃ for 40min, cool below 5 ℃, solidify the reaction mixture, add 16mL of acetic anhydride, heat on water bath for 30min, pour into 120mL of hot water, add 16mL of concentrated hydrochloric acid, heat in water bath for 20min, and let stand for 24h. Precipitation of crystals, suction filtration, washing, recrystallization in the mass fraction of 30% acetic acid aqueous solution to obtain 1.6g yellow crystals, namely 4-nitrocinnamaldehyde, and the calculated product yield is 45.3%. |
Last Update：2024-04-09 21:04:16
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Product Name: trans-4-Nitrocinnamaldehyde Visit Supplier Webpage Request for quotationCAS: 1734-79-8
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