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 |  | 2,5-Dimethoxycinnamic acid Basic information |  
  
 |  | 2,5-Dimethoxycinnamic acid Chemical Properties |  
 | Melting point  | 147-150°C |  | Boiling point  | 267.4°C (rough estimate) |  | density  | 1.0627 (rough estimate) |  | refractive index  | 1.4389 (estimate) |  | storage temp.  | Keep in dark place,Sealed in dry,Room Temperature |  | form  | powder to crystal |  | pka | 4.40±0.10(Predicted) |  | color  | Light orange to Yellow to Green |  | CAS DataBase Reference | 10538-51-9(CAS DataBase Reference) |  
  
| Hazard Codes  | Xi |  | Risk Statements  | 36/37/38 |  | Safety Statements  | 26-37/39-37 |  | WGK Germany  | 3 |  | HazardClass  | IRRITANT |  | HS Code  | 29189900 |  
  
 |  | 2,5-Dimethoxycinnamic acid Usage And Synthesis |  
 | Chemical Properties | yellow powder |  | Uses | 2,5-Dimethoxycinnamic acid can be used as a pharmaceutical intermediate, and can be used in the synthesis of vasodilators such as cinnepazide. |  | Preparation | Synthesis of 2,5-dimethoxycinnamic acid: 2,5-dimethoxybenzaldehyde, malonic acid and pyridine were added to 100ml three necks, piperidine was added at 90°C, refluxed for 2h, cooled to room temperature, and added 3mol/L hydrochloric acid, resulting in a large amount of white precipitate, suction filtration, the filter cake is washed with water, reconstituted with ethanol, after drying, 2,5-dimethoxycinnamic acid was obtained as pale yellow needle crystals. |  | Definition | ChEBI: 2,5-Dimethoxycinnamic acid is a hydroxycinnamic acid. |  | General Description | 2,5-Dimethoxycinnamic acid forms 1:1 molecular complex with 3,5-dinitrocinnamic acid. |  
  
 |  | 2,5-Dimethoxycinnamic acid Preparation Products And Raw materials |  
  
 
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