Benzaldehyde, 4-hydroxy-3-nitro-
4-Hydroxy-3-nitrobenzaldehyde
CAS: 3011-34-5
Molecular Formula: C7H5NO4
Benzaldehyde, 4-hydroxy-3-nitro- - Names and Identifiers
| Name | 4-Hydroxy-3-nitrobenzaldehyde |
| Synonyms | AKOS B028742 TIMTEC-BB SBB008631 4-Formyl-2-nitrophenol 4-Formyl-3-nitrophenol 4-formyl-2-nitrophenolate 4-Hydroxy-3-nitrobenzaldehyde 3-NITRO-4-HYDROXYBENZALDEHYDE 4-HYDROXY-3-NITROBENZALDEHYDE Benzaldehyde, 4-hydroxy-3-nitro- |
| CAS | 3011-34-5 |
| EINECS | 221-141-6 |
| InChI | InChI=1/C7H5NO4/c9-4-5-1-2-7(10)6(3-5)8(11)12/h1-4,10H/p-1 |
Benzaldehyde, 4-hydroxy-3-nitro- - Physico-chemical Properties
| Molecular Formula | C7H5NO4 |
| Molar Mass | 167.12 |
| Density | 1.5216 (rough estimate) |
| Melting Point | 140-142 °C (lit.) |
| Boling Point | 295.67°C (rough estimate) |
| Flash Point | 124.3°C |
| Solubility | DMSO (Slightly), Methanol (Slightly) |
| Vapor Presure | 0.00312mmHg at 25°C |
| Appearance | Powder |
| Color | light yellow |
| BRN | 2047884 |
| pKa | 4.99±0.14(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Sensitive | Air Sensitive |
| Refractive Index | 1.6280 (estimate) |
| Physical and Chemical Properties | Yellow needle-like crystals. Melting point 144-145 °c. Soluble in alcohol, slightly soluble in water. |
Benzaldehyde, 4-hydroxy-3-nitro- - 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. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10 |
| HS Code | 29130000 |
| Hazard Class | IRRITANT, AIR SENSIT |
Benzaldehyde, 4-hydroxy-3-nitro- - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| use | organic synthesis intermediate. Used as intermediates in medicine, pesticides and dyes |
| production method | 24g of p-hydroxybenzaldehyde is suspended in 100ml of glacial acetic acid, and added dropwise for 1h under stirring. Cooling, filtering, washing the filter cake with ice water, recrystallizing with ethanol to obtain 20g of finished product with 61% yield. |
Last Update：2024-04-09 21:01:54
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