Roflumilast impurity 19
4-Difluoromethoxy-3-hydroxybenzaldehyde
CAS: 151103-08-1
Molecular Formula: C8H6F2O3
Roflumilast impurity 19 - Names and Identifiers
| Name | 4-Difluoromethoxy-3-hydroxybenzaldehyde |
| Synonyms | bromo(difluoro)methane Roflumilast impurity 19 Roflumilast intermediates-3 3-Hydroxy-4-diflouromethylbenzaldehyde 4-Difluoromethoxy-3-hydroxybenzaldehyde 4-DIFLUOROMETHOXY-3-HYDROXYBENZALDEHYDE 3-hydroxy-4-difluoroMethoxy benzaldehyde 4-(difluoromethoxy)-3-hydroxybenzaldehyde Benzaldehyde,4-(difluoroMethoxy)-3-hydroxy- 2-(Difluoromethoxy)-5-formylphenol, alpha,alpha-Difluoro-4-formyl-2-hydroxyanisole |
| CAS | 151103-08-1 |
| EINECS | 687-745-0 |
| InChI | InChI=1/C8H6F2O3/c9-8(10)13-7-2-1-5(4-11)3-6(7)12/h1-4,8,12H |
| InChIKey | ZLIKNROJGXXNJG-UHFFFAOYSA-N |
Roflumilast impurity 19 - Physico-chemical Properties
| Molecular Formula | C8H6F2O3 |
| Molar Mass | 188.13 |
| Density | 1.395±0.06 g/cm3(Predicted) |
| Melting Point | 85-90°C |
| Boling Point | 280.6±35.0 °C(Predicted) |
| Flash Point | 123.5°C |
| Solubility | Chloroform (Slightly), Methanol (Slightly) |
| Vapor Presure | 0.0022mmHg at 25°C |
| Appearance | Solid |
| Color | White |
| pKa | 7.85±0.35(Predicted) |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Refractive Index | 1.533 |
| MDL | MFCD04406687 |
Roflumilast impurity 19 - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R51 - Toxic to aquatic organisms 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. |
| WGK Germany | 3 |
| Hazard Note | Irritant |
Roflumilast impurity 19 - Reference Information
| Uses | 4-difluoromethoxy-3-hydroxybenzaldehyde is a phenylalkyl ketone derivative used to prepare phosphodiesterase -4(PDE4) inhibitors. It is also used as an intermediate in medicine (such as roflumilast). |
Last Update：2024-04-09 21:04:16
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