Name | 2-chloro-4-hydroxybenzaldehyde |
Synonyms | TIMTEC-BB SBB004014 2-chloro-4-hydroxybenzaldehyde Benzaldehyde, 2-chloro-4-hydroxy- |
CAS | 56962-11-9 |
Molecular Formula | C7H5ClO2 |
Molar Mass | 156.57 |
Density | 1.404±0.06 g/cm3(Predicted) |
Melting Point | 145-147 °C (lit.) |
Boling Point | 272.5±20.0 °C(Predicted) |
Solubility | Soluble in organic solvents. |
Appearance | Solid |
pKa | 6.81±0.18(Predicted) |
Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
Sensitive | Air Sensitive |
MDL | MFCD00052184 |
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 |
HS Code | 29124900 |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
Application | 2-chloro-4-hydroxybenzaldehyde is an important halogen-based fine chemical product, it can be used as raw materials for the synthesis of methyl vanillin, ethyl vanillin and other important synthetic spices; In addition, it also has the function of inhibiting the growth of microorganisms, can be used for drugs, cosmetics and as fungicides in chemical systems. |
synthesis method | weigh G of p-hydroxybenzaldehyde, place 25ml of tetrahydrofuran in 100mL four-necked bottle, dissolve under stirring, the temperature of the cold bath was controlled at -10 °c. 30ml of tetrahydrofuran solution containing 7.9g of phosphorus oxychloride/phosphorus pentachloride was slowly added dropwise to the reaction flask, and the reaction was followed by high performance liquid chromatography. The reaction was complete in about 5 hours. The reaction solution was washed with 20 mL of 10% sodium hydroxide solution, distilled under reduced pressure to remove Tetrahydrofuran, extracted with isopropyl ether, distilled under reduced pressure to recover the solvent, and recrystallized with dichloroethane, 9.02g of 2-chloro-4-hydroxybenzaldehyde was obtained. |