528-75-6
2,4-Dinitrobenzaldehyde
CAS: 528-75-6
Molecular Formula: C7H4N2O5
528-75-6 - Names and Identifiers
| Name | 2,4-Dinitrobenzaldehyde |
| Synonyms | AKOS 90749 m-Dintrobenzaldehyde SALOR-INT L170321-1EA 2,4-Dinitrobenzaldehyde 2,4-dinitro-benzaldehyd 2,4-DINITROBENZALDEHYDE Benzaldehyde, 2,4-dinitro- |
| CAS | 528-75-6 |
| EINECS | 208-440-7 |
| InChI | InChI=1/C7H4N2O5/c10-4-5-1-2-6(8(11)12)3-7(5)9(13)14/h1-4H |
528-75-6 - Physico-chemical Properties
| Molecular Formula | C7H4N2O5 |
| Molar Mass | 196.12 |
| Density | 1.6665 (rough estimate) |
| Melting Point | 66-70 °C (lit.) |
| Boling Point | 190 °C/10 mmHg (lit.) |
| Flash Point | 190°C/10mm |
| Solubility | Chloroform (Slightly), Methanol (Slightly) |
| Vapor Presure | 9.4E-05mmHg at 25°C |
| Appearance | White crystal |
| Color | Light Brown to Light Red |
| Merck | 14,3272 |
| BRN | 1878706 |
| Storage Condition | -20°C Freezer |
| Sensitive | Air Sensitive |
| Refractive Index | 1.5300 (estimate) |
| MDL | MFCD00013376 |
| Physical and Chemical Properties | White or pale yellow crystals. The melting point of 72 deg C, boiling point of 190 deg C/10mmHg. Soluble in ethanol, ether, soluble in benzene and acetic acid, water-soluble. Heat is easy to sublimate. |
| Use | Mainly used in organic synthesis |
528-75-6 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| RTECS | CU5957000 |
| HS Code | 29124990 |
| Hazard Note | Irritant |
528-75-6 - Introduction
It is easy to sublimate when heated. Can be decomposed by alkali. Can reduce Fei Lin's solution. Easily soluble in ethanol, ether and benzene, slightly soluble in water and petroleum ether. It's irritating.
Last Update：2022-10-16 17:25:54
528-75-6 - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| Use | Used in organic synthesis, photography, and preparation of Schiff's bases. Mainly used in organic synthesis |
| production method | using N,N-dimethylaniline as the starting material, the product is prepared by the following steps. N,N-dimethylaniline and concentrated hydrochloric acid were prepared into a solution, and ice cubes were added to cool to 5 ℃. Stir, slowly add sodium nitrite solution, keep below 8 ℃, add for 1h, then place for 1h, and filter. The filter cake is first washed with hydrochloric acid, then washed with ethanol, and dried in the air to obtain p-nitrosoxyphenylamine hydrochloride. Add the above hydrochloride and anhydrous sodium carbonate into ethanol, heat for half an hour, and filter. The filtrate and 2,4-dinitrotoluene were stirred and heated together for 5h. After cooling, the condensate was filtered out and recrystallized once with ethanol. Add the condensate to hydrochloric acid, pass in water vapor for 15min, cool, pour out of the water layer, add dilute hydrochloric acid to pass in water vapor and stir. It is best to filter out the solid, wash with water, and dry in a vacuum dryer to obtain 2, 4-dinitrobenzaldehyde. |
Last Update：2024-04-10 22:29:15
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Product Name: 2,4-Dinitrobenzaldehyde Visit Supplier Webpage Request for quotationCAS: 528-75-6
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Mobile: 18021002903
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